Hi, How can i use it inside my project XPLPC: <a href="https://g

Hi, Java VM - Initialize In my <c

And the code is changed to this: <div class="snippet-clipboard-content notranslate

Help to use inside XPLPC,about google/jni-bind

Comments (28)

jwhpryor commented on July 22, 2024

It would make sense for your case, sure. Which part are you having trouble with? First make sure you follow the setup for JNIOnLoad (#188).

Glancing at your code, the class definition would probably translate as roughly:

static constexpr jni::Class kClass {
 "com/xplpc/proxy/PlatformProxy",
 jni::Static {
   jni::Method { "onNativeProxyCallback", jni::Return<void>{}, jni::Params {jstring{}, jstring{} },
 },

https://github.com/google/jni-bind#methods
https://github.com/google/jni-bind#statics

I notice some array manipulation which probably looks like:

jni::LocalArray<jbyte> some_array { size };
auto* ptr_to_do_some_stuff_with some_array.Pin().ptr();

https://github.com/google/jni-bind#arrays

Is there a part specifically I could help with?

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paulocoutinhox commented on July 22, 2024

Hi,

First, thanks for your time.

Im really confused about what i need change and what i need keep.

PART 1:

The main class between C++ and JNI is this:
https://github.com/xplpc/xplpc/blob/main/jni/lib/src/xplpc/proxy/JNIPlatformProxy.cpp

In this class i have:

Local thread jni env stored: thread_local JNIEnv
When it is initialized initializePlatform i need store class loader
When it is initialized initializePlatform i call kotlin/java method "com/xplpc/proxy/PlatformProxy::onInitializePlatform"
I have some methods that simply call kotlin/java code: callProxy, hasMapping, but these methods i think that is simple like you post above
I need control thread with jniGetThreadEnv and jniGetOptThreadEnv. I still need this?
I need a method to find class jniFindClass i still need this?

PART 2:

I have a helper to convert string between platforms:
https://github.com/xplpc/xplpc/blob/main/jni/lib/src/xplpc/jni/support.cpp

I still need jniUTF8FromString and jniStringFromUTF8?

PART 3:

I have a more part that create some objects:
https://github.com/xplpc/xplpc/blob/main/jni/lib/src/xplpc/jni/platform.cpp

The jni onload JNI_OnLoad need call jni bind setup method, correct?
When unload JNI_OnUnload i need call jni bind something?
The C++ method Java_com_xplpc_proxy_PlatformProxy_callNativeProxy still need exists correct?
The C++ method Java_com_xplpc_proxy_PlatformProxy_callNativeProxy will call jni bind methid like your example above, correct?
There is something to change in Java_com_xplpc_helper_ByteBufferHelper_getPtrAddress to something from jni bind?
There is something to change in Java_com_xplpc_helper_ByteArrayHelper_getPtrAddress to something from jni bind?
There is something to change in Java_com_xplpc_helper_ByteArrayHelper_createFromPtr to something from jni bind?

I know that is too much things to answer, but glad if you can help me in these questions.

Thanks.

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jwhpryor commented on July 22, 2024

Part 1:

JNIBind handles JNIEnv* for you, you don't ever need to worry about it with JNI Bind code.
You don't need jniGetThreadEnv, but you do need ThreadGuard any time you use a new thread: Threading.
JNI Bind actually supports class loaders, but very sadly I don't have documentation for them yet. Check out the sample code: Classloaders.
jniFindClass is called on your behalf, you will never need to use it.

Part 2:

No, just use Strings, they ought to do the conversion for you. Strings

Part 3:

Yes, you must setup JNI Bind in OnLoad per the documentation (that's how it gets access to JNIEnv).
OnUnload, you can destroy the JvmRef. If your program is ending it doesn't matter.
Java_com_xplpc_proxy_PlatformProxy_callNativeProxy yes, this is your C entrypoint, you must still define it. If you want, you can tidy it with a macro like this but it's just for show.
You will call that method using Statics.
Java_com_xplpc_helper_ByteBufferHelper_getPtrAddress seems to be calling GetDirectBufferAddress which truthfully I haven't used so I doubt there's a JNI Bind equivalent. It looks useful though, maybe it should.
These methods seem to be doing some array like manipulation, I'm afraid I don't have time to fully grok it but this section might help: Arrays

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paulocoutinhox commented on July 22, 2024

Hi,

Im near to finish the migration, but some errors happen when running the tests, but it is compiling the C++ library.

I need your help only to understand what im doing wrong with jni-bind and my new/old code.

Changes 1: JNIPlatformProxy.hpp

#pragma once

#include "xplpc/jni/jni_bind_release.h"
#include "xplpc/jni/support.hpp"
#include "xplpc/proxy/PlatformProxy.hpp"

#include <memory>
#include <string>

namespace xplpc
{
namespace proxy
{

class JNIPlatformProxy : public PlatformProxy
{
public:
    static std::shared_ptr<JNIPlatformProxy> shared();

    virtual void initialize() override;
    virtual void initializePlatform() override;
    virtual void finalize() override;
    virtual void finalizePlatform() override;
    virtual void callProxy(const std::string &key, const std::string &data) override;
    virtual bool hasMapping(const std::string &name) override;

    void onNativeProxyCallback(const jstring &key, const std::string &data);
    void setPlatformJavaVM(JavaVM *pjvm);

private:
    static std::shared_ptr<JNIPlatformProxy> instance;

    static constexpr ::jni::Class kPlatformProxy{
        "com/xplpc/proxy/PlatformProxy",
        ::jni::Static{
            ::jni::Method{"onInitializePlatform", ::jni::Return<void>{}, ::jni::Params{}},
            ::jni::Method{"onFinalizePlatform", ::jni::Return<void>{}, ::jni::Params{}},
            ::jni::Method{"onNativeProxyCall", ::jni::Return<void>{}, ::jni::Params<jstring, jstring>{}},
            ::jni::Method{"onHasMapping", ::jni::Return<jboolean>{}, ::jni::Params<jstring>{}},
            ::jni::Method{"onNativeProxyCallback", ::jni::Return<void>{}, ::jni::Params<jstring, jstring>{}},
        },
    };

    std::unique_ptr<::jni::JvmRef<::jni::kDefaultJvm>> jvm;
    JavaVM *platformJavaVM;
};

} // namespace proxy
} // namespace xplpc

Created kPlatformProxy
Bind code is correct?

Changes 2: JNIPlatformProxy.cpp

#include "xplpc/proxy/JNIPlatformProxy.hpp"
#include "spdlog/spdlog.h"

#include <cassert>

namespace xplpc
{
namespace proxy
{

std::shared_ptr<JNIPlatformProxy> JNIPlatformProxy::instance = nullptr;

std::shared_ptr<JNIPlatformProxy> JNIPlatformProxy::shared()
{
    if (instance == nullptr)
    {
        instance = std::make_shared<JNIPlatformProxy>();
    }

    return instance;
}

void JNIPlatformProxy::initialize()
{
    initializePlatform();
}

void JNIPlatformProxy::initializePlatform()
{
    // reset jvm from platform jvm
    jvm.reset(new ::jni::JvmRef<::jni::kDefaultJvm>(platformJavaVM));

    // call initialize platform method
    ::jni::StaticRef<kPlatformProxy>{}("onInitializePlatform");
}

void JNIPlatformProxy::finalize()
{
    finalizePlatform();
}

void JNIPlatformProxy::finalizePlatform()
{
    ::jni::StaticRef<kPlatformProxy>{}("onFinalizePlatform");

    // reset
    this->jvm = nullptr;
    this->platformJavaVM = nullptr;
}

void JNIPlatformProxy::callProxy(const std::string &key, const std::string &data)
{
    ::jni::StaticRef<kPlatformProxy>{}("onNativeProxyCall", key, data);
}

bool JNIPlatformProxy::hasMapping(const std::string &name)
{
    return ::jni::StaticRef<kPlatformProxy>{}("onHasMapping", name);
}

void JNIPlatformProxy::onNativeProxyCallback(const jstring &key, const std::string &data)
{
    ::jni::StaticRef<kPlatformProxy>{}("onNativeProxyCallback", key, data);
}

void JNIPlatformProxy::setPlatformJavaVM(JavaVM *pjvm)
{
    this->platformJavaVM = pjvm;
}

} // namespace proxy
} // namespace xplpc

Store jvm
Using ::jni::StaticRef<kPlatformProxy> to call all @Jvmstatic methods from kotlin class
Finalize is erasing jvm and platformJavaVM

Changes 3: Java_com_xplpc_proxy_PlatformProxy_callNativeProxy

#include "xplpc/client/Client.hpp"
#include "xplpc/data/CallbackList.hpp"
#include "xplpc/data/PlatformProxyList.hpp"
#include "xplpc/jni/support.hpp"
#include "xplpc/proxy/JNIPlatformProxy.hpp"
#include "xplpc/proxy/NativePlatformProxy.hpp"

#include <cstdint>
#include <memory>

using namespace xplpc::client;
using namespace xplpc::data;
using namespace xplpc::proxy;
using namespace xplpc::jni;

extern "C"
{
    JNIEXPORT jint JNICALL
    JNI_OnLoad(JavaVM *jvm, void * /*reserved*/)
    {
        // initialize cxx platform proxy
        auto nativePlatformProxy = std::make_shared<NativePlatformProxy>();
        nativePlatformProxy->initialize();
        PlatformProxyList::shared()->insert(0, nativePlatformProxy);

        // initialize jni platform proxy
        auto jniPlatformProxy = JNIPlatformProxy::shared();
        jniPlatformProxy->setPlatformJavaVM(jvm);
        jniPlatformProxy->initialize();

        PlatformProxyList::shared()->insert(0, jniPlatformProxy);

        return JNI_VERSION_1_6;
    }

    JNIEXPORT void JNICALL
    JNI_OnUnload(JavaVM * /*jvm*/, void * /*reserved*/)
    {
        JNIPlatformProxy::shared()->finalize();
    }

    JNIEXPORT void JNICALL
    Java_com_xplpc_proxy_PlatformProxy_callNativeProxy(JNIEnv *env, jclass /*clazz*/, jstring key, jstring data)
    {
        // clang-format off
        Client::call(jniUTF8FromString(env, data), [key](const auto &response) {
            auto proxy = JNIPlatformProxy::shared();
            proxy->onNativeProxyCallback(key, response);
        });
        // clang-format on
    }

    JNIEXPORT void JNICALL
    Java_com_xplpc_proxy_PlatformProxy_callNativeProxyCallback(JNIEnv *env, jclass /*clazz*/, jstring key, jstring data)
    {
        CallbackList::shared()->execute(jniUTF8FromString(env, key), jniUTF8FromString(env, data));
    }

    JNIEXPORT jlong JNICALL
    Java_com_xplpc_helper_ByteBufferHelper_getPtrAddress(JNIEnv *env, jobject /*thiz*/, jobject data)
    {
        auto pointer = reinterpret_cast<uint8_t *>(env->GetDirectBufferAddress(data));
        auto address = reinterpret_cast<std::uintptr_t>(pointer);
        return static_cast<jlong>(address);
    }

    JNIEXPORT jlong JNICALL
    Java_com_xplpc_helper_ByteArrayHelper_getPtrAddress(JNIEnv *env, jobject /*thiz*/, jbyteArray data)
    {
        auto pointer = (jbyte *)env->GetPrimitiveArrayCritical(data, nullptr);
        auto address = reinterpret_cast<std::uintptr_t>(pointer);
        env->ReleasePrimitiveArrayCritical(data, pointer, 0);
        return static_cast<jlong>(address);
    }

    JNIEXPORT jbyteArray JNICALL
    Java_com_xplpc_helper_ByteArrayHelper_createFromPtr(JNIEnv *env, jobject thiz, jlong ptr, jint size)
    {
        auto byteArray = env->NewByteArray(static_cast<jsize>(size));
        auto dataPtr = reinterpret_cast<uint8_t *>(ptr);
        env->SetByteArrayRegion(byteArray, 0, size, reinterpret_cast<const jbyte *>(dataPtr));
        return byteArray;
    }
}

Changed Java_com_xplpc_proxy_PlatformProxy_callNativeProxy to use a more jni-bind method, but i dont know if i do in the best way
I need jni-bind methods to convert string instead mine jniUTF8FromString and jniStringFromUTF8

ERROR:

09-04 16:40:32.696 13254 13254 F DEBUG   : backtrace:
09-04 16:40:32.696 13254 13254 F DEBUG   :       #00 pc 0000000000356db4  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (_JNIEnv::GetStaticMethodID(_jclass*, char const*, char const*)+32) (BuildId: 66ba40cd1950731d9419bd89f9deeeffe1ee3483)
09-04 16:40:32.696 13254 13254 F DEBUG   :       #01 pc 0000000000355b80  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (jni::JniHelper::GetStaticMethodID(_jclass*, char const*, char const*)+40) (BuildId: 66ba40cd1950731d9419bd89f9deeeffe1ee3483)
09-04 16:40:32.696 13254 13254 F DEBUG   :       #02 pc 00000000003596d8  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)::'lambda'()::operator()() const+108) (BuildId: 66ba40cd1950731d9419bd89f9deeeffe1ee3483)
09-04 16:40:32.696 13254 13254 F DEBUG   :       #03 pc 00000000003595d4  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (_jmethodID* jni::metaprogramming::DoubleLockedValue<_jmethodID*>::LoadAndMaybeInit<jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)::'lambda'()>(jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)::'lambda'())+148) (BuildId: 66ba40cd1950731d9419bd89f9deeeffe1ee3483)
09-04 16:40:32.696 13254 13254 F DEBUG   :       #04 pc 00000000003594d0  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)+128) (BuildId: 66ba40cd1950731d9419bd89f9deeeffe1ee3483)
09-04 16:40:32.696 13254 13254 F DEBUG   :       #05 pc 0000000000359390  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (unsigned char jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::Invoke<std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&>(_jclass*, _jobject*, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)+56) (BuildId: 66ba40cd1950731d9419bd89f9deeeffe1ee3483)
09-04 16:40:32.696 13254 13254 F DEBUG   :       #06 pc 0000000000359348  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (auto jni::StaticRef<xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm>::InvocableMapCall<3ul, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&>(char const*, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&) const+56) (BuildId: 66ba40cd1950731d9419bd89f9deeeffe1ee3483)
09-04 16:40:32.696 13254 13254 F DEBUG   :       #07 pc 0000000000355444  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (auto jni::metaprogramming::InvocableMapEntry<jni::StaticRef<xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm>, jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>::static_v, jni::Static<std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > >, std::__ndk1::tuple<> >, &(jni::Static<std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > >, std::__ndk1::tuple<> >::methods_), 3ul>::operator()<std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&>(char const*, 3ul&&...) [enable_if:((std::__ndk1::basic_string_view<char, std::__ndk1::char_traits<char> >)(fp)) == (std::__ndk1::tuple_element<3ul, std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > > >::type const& std::__ndk1::get<3ul, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > >(std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > > const&)(jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>::static_v.*&(jni::Static<std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Re
09-04 16:40:32.696 13254 13254 F DEBUG   :
09-04 16:40:32.696 13254 13254 F DEBUG   :       #08 pc 00000000003553c8  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (xplpc::proxy::JNIPlatformProxy::hasMapping(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)+52) (BuildId: 66ba40cd1950731d9419bd89f9deeeffe1ee3483)
09-04 16:40:32.696 13254 13254 F DEBUG   :       #09 pc 000000000034f128  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (auto xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&)::operator()<std::__ndk1::shared_ptr<xplpc::proxy::PlatformProxy> >(auto const&) const+52) (BuildId: 66ba40cd1950731d9419bd89f9deeeffe1ee3483)
09-04 16:40:32.696 13254 13254 F DEBUG   :       #10 pc 000000000034d3e4  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (auto std::__ndk1::find_if<std::__ndk1::__wrap_iter<std::__ndk1::shared_ptr<xplpc::proxy::PlatformProxy>*>, xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&)>(auto, auto, xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&))+76) (BuildId: 66ba40cd1950731d9419bd89f9deeeffe1ee3483)
09-04 16:40:32.696 13254 13254 F DEBUG   :       #11 pc 000000000034cc38  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)+392) (BuildId: 66ba40cd1950731d9419bd89f9deeeffe1ee3483)
09-04 16:40:32.696 13254 13254 F DEBUG   :       #12 pc 000000000034ca34  /data/app/~~sd7AUXPDQUqkhR25kc2lBQ==/com.xplpc.library.test-DSsXTi1Ruc8U1m3fqGM_cg==/lib/arm64/libxplpc.so (Java_com_xplpc_proxy_PlatformProxy_callNativeProxy+88) (BuildId: 66ba40cd1950731d9419bd89f9deeeffe1ee3483)

from jni-bind.

jwhpryor commented on July 22, 2024

Part 1:

I really need std::unique_ptr<::jni::JvmRef<::jni::kDefaultJvm>> jvm;?

You need to have ::jni::JvmRef<::jni::kDefaultJvm>> initialised from the OnLoad call that outlives all other calls (it's fine if it leaks). You could also use a plain old function local static.

Bind code is correct?

Without manually inspecting every method, at a glance it does look correct.

Part 2:

finalizePlatform only gets called once I hope, right? In your case, it sounds like it's crashing before that point anyways.

Otherwise looks fine.

Part 3:

Your code is crashing when looking up the static method signature. If you try with a non-static method does it work? I just did a quick test with a native => Kotlin static call and it works fine for me. When I double check your signatures, it looks OK.

Are you possibly calling this on a secondary thread? If so, just to make sure you have your signatures correct, can you write a super basic app that just calls a static method on the Java class and see if it works?

As for strings, I think you may need to use a character array or something similar for now, I'm afraid I don't have special support for string types that aren't supported in C++17 (when I add C++20 I will add it). For now supported types are here.

from jni-bind.

paulocoutinhox commented on July 22, 2024

Hi,

Java VM - Initialize

In my JNIPlatformProxy class i have a property:

std::unique_ptr<::jni::JvmRef<::jni::kDefaultJvm>> jvm

And when initializing on OnLoad i do:

void JNIPlatformProxy::initializePlatform()
{
    // set jvm from platform jvm
    jvm.reset(new ::jni::JvmRef<::jni::kDefaultJvm>(platformJavaVM));

    // call initialize platform method
    ::jni::StaticRef<kPlatformProxy>{}("onInitializePlatform");
}

Static Test

If i remove the static from bind the calls StaticRef don't compile. Example:

::jni::StaticRef<kPlatformProxy>{}("onInitializePlatform");

Changing from:

static constexpr ::jni::Class kPlatformProxy{
        "com/xplpc/proxy/PlatformProxy",
        ::jni::Static{
            ::jni::Method{"onInitializePlatform", ::jni::Return<void>{}, ::jni::Params{}},
            ::jni::Method{"onFinalizePlatform", ::jni::Return<void>{}, ::jni::Params{}},
            ::jni::Method{"onNativeProxyCall", ::jni::Return<void>{}, ::jni::Params<jstring, jstring>{}},
            ::jni::Method{"onHasMapping", ::jni::Return<jboolean>{}, ::jni::Params<jstring>{}},
            ::jni::Method{"onNativeProxyCallback", ::jni::Return<void>{}, ::jni::Params<jstring, jstring>{}},
        },
};

to:

static constexpr ::jni::Class kPlatformProxy{
        "com/xplpc/proxy/PlatformProxy",
            ::jni::Method{"onInitializePlatform", ::jni::Return<void>{}, ::jni::Params{}},
            ::jni::Method{"onFinalizePlatform", ::jni::Return<void>{}, ::jni::Params{}},
            ::jni::Method{"onNativeProxyCall", ::jni::Return<void>{}, ::jni::Params<jstring, jstring>{}},
            ::jni::Method{"onHasMapping", ::jni::Return<jboolean>{}, ::jni::Params<jstring>{}},
            ::jni::Method{"onNativeProxyCallback", ::jni::Return<void>{}, ::jni::Params<jstring, jstring>{}},
};

It works normally in my project using static when i call it manually from my own code:

bool JNIPlatformProxy::hasMapping(const std::string &name)
{
    auto env = jniGetThreadEnv();
    jclass clazz = jniFindClass("com/xplpc/proxy/PlatformProxy");
    jmethodID methodID = env->GetStaticMethodID(clazz, "onHasMapping", "(Ljava/lang/String;)Z");
    return env->CallStaticBooleanMethod(clazz, methodID, xplpc::jni::jniStringFromUTF8(env, name));
}

Ref: https://github.com/xplpc/xplpc/blob/main/jni/lib/src/xplpc/proxy/JNIPlatformProxy.cpp#L75-L81

So, i don't think that the problem is kotlin or java.

Strings

So, from now i will still use mine functions to convert string and jstring until jni-bind have their functions.

from jni-bind.

jwhpryor commented on July 22, 2024

The function invocation looks right to me. Because I have run it successfully on Kotlin and Java, and there is E2E testing for this (specifically a static that takes a String), I think your JNI Bind init/teardown is possibly wrong.

Are you able to make any successful calls? Could you try just replacing the StaticRef call with the following:

printf("Test: %s\n", jni::LocalString{"Testing"}.Pin().ToString().data());

If that fails (I hope it does), it would confirm you somehow haven't setup your JvmRef properly (this seems to be too complicated for folks, so I'm getting the sense making this easier might be good for 1.0).

Could you try getting rid of your JvmRef variable completely and just adding the following to your onload to the following:

JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* pjvm, void* reserved) {
  static jni::JvmRef<jni::kDefaultJvm> jvm{pjvm};

  return JNI_VERSION_1_6;
}

from jni-bind.

paulocoutinhox commented on July 22, 2024

Hi,

My tests form your last message.

Initialize

I remove the private variable and use static like you sad:

void JNIPlatformProxy::initializePlatform()
{
    // set jvm from platform jvm
    static ::jni::JvmRef<::jni::kDefaultJvm> jvm{platformJavaVM};

    // call initialize platform method
    ::jni::StaticRef<kPlatformProxy>{}("onInitializePlatform");
}

When run after this, the same error happen.

09-06 12:17:31.218 15301 15301 F DEBUG   : Cause: null pointer dereference
09-06 12:17:31.218 15301 15301 F DEBUG   :     x0  0000000000000000  x1  0000000000002a02  x2  00000073990f9a3b  x3  00000073991043e7
09-06 12:17:31.218 15301 15301 F DEBUG   :     x4  0000007399104500  x5  b400007430ea67a0  x6  0000000000000000  x7  0000000000000000
09-06 12:17:31.218 15301 15301 F DEBUG   :     x8  b400007430ea679f  x9  fffffffffffffff8  x10 0000000000017000  x11 0000000000000002
09-06 12:17:31.218 15301 15301 F DEBUG   :     x12 0000000030ea67a7  x13 0000000000000000  x14 0000000000000006  x15 ffffffffffffffff
09-06 12:17:31.218 15301 15301 F DEBUG   :     x16 00000073993718b0  x17 000000739927b754  x18 00000073936f0000  x19 b400007580b5d5e0
09-06 12:17:31.218 15301 15301 F DEBUG   :     x20 0000000000000000  x21 b400007580b5d6a0  x22 00000073f4b5b5a4  x23 0000000000002071
09-06 12:17:31.218 15301 15301 F DEBUG   :     x24 000000740be00880  x25 00000073f3d37dd0  x26 00000073f3d37ddc  x27 00000073f3d37dd0
09-06 12:17:31.218 15301 15301 F DEBUG   :     x28 00000073f3d37cd0  x29 00000073f3d37730
09-06 12:17:31.218 15301 15301 F DEBUG   :     lr  000000739927a544  sp  00000073f3d37710  pc  000000739927b774  pst 0000000060001000
09-06 12:17:31.218 15301 15301 F DEBUG   : backtrace:
09-06 12:17:31.218 15301 15301 F DEBUG   :       #00 pc 0000000000356774  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (_JNIEnv::GetStaticMethodID(_jclass*, char const*, char const*)+32) (BuildId: fed70f30057d920fbbcc6e78b418bd12a2337688)
09-06 12:17:31.218 15301 15301 F DEBUG   :       #01 pc 0000000000355540  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (jni::JniHelper::GetStaticMethodID(_jclass*, char const*, char const*)+40) (BuildId: fed70f30057d920fbbcc6e78b418bd12a2337688)
09-06 12:17:31.218 15301 15301 F DEBUG   :       #02 pc 0000000000359098  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)::'lambda'()::operator()() const+108) (BuildId: fed70f30057d920fbbcc6e78b418bd12a2337688)
09-06 12:17:31.218 15301 15301 F DEBUG   :       #03 pc 0000000000358f94  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (_jmethodID* jni::metaprogramming::DoubleLockedValue<_jmethodID*>::LoadAndMaybeInit<jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)::'lambda'()>(jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)::'lambda'())+148) (BuildId: fed70f30057d920fbbcc6e78b418bd12a2337688)
09-06 12:17:31.218 15301 15301 F DEBUG   :       #04 pc 0000000000358e90  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)+128) (BuildId: fed70f30057d920fbbcc6e78b418bd12a2337688)
09-06 12:17:31.218 15301 15301 F DEBUG   :       #05 pc 0000000000358d50  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (unsigned char jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::Invoke<std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&>(_jclass*, _jobject*, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)+56) (BuildId: fed70f30057d920fbbcc6e78b418bd12a2337688)
09-06 12:17:31.218 15301 15301 F DEBUG   :       #06 pc 0000000000358d08  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (auto jni::StaticRef<xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm>::InvocableMapCall<3ul, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&>(char const*, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&) const+56) (BuildId: fed70f30057d920fbbcc6e78b418bd12a2337688)
09-06 12:17:31.218 15301 15301 F DEBUG   :       #07 pc 0000000000354e24  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (auto jni::metaprogramming::InvocableMapEntry<jni::StaticRef<xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm>, jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>::static_v, jni::Static<std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > >, std::__ndk1::tuple<> >, &(jni::Static<std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > >, std::__ndk1::tuple<> >::methods_), 3ul>::operator()<std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&>(char const*, 3ul&&...) [enable_if:((std::__ndk1::basic_string_view<char, std::__ndk1::char_traits<char> >)(fp)) == (std::__ndk1::tuple_element<3ul, std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > > >::type const& std::__ndk1::get<3ul, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > >(std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > > const&)(jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>::static_v.*&(jni::Static<std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Re
09-06 12:17:31.218 15301 15301 F DEBUG   :
09-06 12:17:31.218 15301 15301 F DEBUG   :       #08 pc 0000000000354da8  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (xplpc::proxy::JNIPlatformProxy::hasMapping(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)+52) (BuildId: fed70f30057d920fbbcc6e78b418bd12a2337688)
09-06 12:17:31.218 15301 15301 F DEBUG   :       #09 pc 000000000034e968  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (auto xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&)::operator()<std::__ndk1::shared_ptr<xplpc::proxy::PlatformProxy> >(auto const&) const+52) (BuildId: fed70f30057d920fbbcc6e78b418bd12a2337688)
09-06 12:17:31.218 15301 15301 F DEBUG   :       #10 pc 000000000034cc24  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (auto std::__ndk1::find_if<std::__ndk1::__wrap_iter<std::__ndk1::shared_ptr<xplpc::proxy::PlatformProxy>*>, xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&)>(auto, auto, xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&))+76) (BuildId: fed70f30057d920fbbcc6e78b418bd12a2337688)
09-06 12:17:31.218 15301 15301 F DEBUG   :       #11 pc 000000000034c478  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)+392) (BuildId: fed70f30057d920fbbcc6e78b418bd12a2337688)
09-06 12:17:31.218 15301 15301 F DEBUG   :       #12 pc 000000000034c274  /data/app/~~BoO5QaCeevPMNbkrtsuHSg==/com.xplpc.library.test-K6xiEH2FLrfBHoBL2MUzFw==/lib/arm64/libxplpc.so (Java_com_xplpc_proxy_PlatformProxy_callNativeProxy+88) (BuildId: fed70f30057d920fbbcc6e78b418bd12a2337688)

String test

When i call the string test you suggest i get this:

09-06 12:26:51.481 15525 15525 F DEBUG   : Cause: null pointer dereference
09-06 12:26:51.481 15525 15525 F DEBUG   :     x0  0000000000000000  x1  00000073984c4e57  x2  0000000000000008  x3  0000000000000010
09-06 12:26:51.481 15525 15525 F DEBUG   :     x4  00000073984cff08  x5  b400007430ea6740  x6  0000000000000000  x7  0000000000000000
09-06 12:26:51.481 15525 15525 F DEBUG   :     x8  b400007430ea673f  x9  fffffffffffffff8  x10 0000000000017000  x11 0000000000000002
09-06 12:26:51.481 15525 15525 F DEBUG   :     x12 0000000030ea6747  x13 000048060000485a  x14 0000000000000006  x15 ffffffffffffffff
09-06 12:26:51.481 15525 15525 F DEBUG   :     x16 000000739873e198  x17 0000007398647d58  x18 0000007390caa000  x19 b400007580b5d5e0
09-06 12:26:51.481 15525 15525 F DEBUG   :     x20 0000000000000000  x21 0000000000000000  x22 00000073f4b885a4  x23 0000000000002071
09-06 12:26:51.481 15525 15525 F DEBUG   :     x24 000000740be00880  x25 00000073f3d32dd0  x26 00000073f3d32ddc  x27 00000073f3d32dd0
09-06 12:26:51.481 15525 15525 F DEBUG   :     x28 00000073f3d32cd0  x29 00000073f3d326e0
09-06 12:26:51.481 15525 15525 F DEBUG   :     lr  0000007398647d4c  sp  00000073f3d326d0  pc  0000007398647d70  pst 0000000060001000
09-06 12:26:51.481 15525 15525 F DEBUG   : backtrace:
09-06 12:26:51.481 15525 15525 F DEBUG   :       #00 pc 0000000000357d70  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (_JNIEnv::NewStringUTF(char const*)+24) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #01 pc 0000000000357d48  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (jni::LifecycleHelper<_jstring*, (jni::LifecycleType)0>::Construct(char const*)+24) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #02 pc 00000000003564a8  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (_jstring* jni::Proxy<_jstring*, void>::ProxyAsArg<char const*, void>(char const*)+20) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #03 pc 00000000003562ac  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (jni::LocalObject<jni::Proxy<_jobject*, void>::Helper<jni::Id<jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)6, 18446744073709551615ul, 0ul, 18446744073709551615ul> >::kClass, jni::Proxy<_jobject*, void>::Helper<jni::Id<jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)6, 18446744073709551615ul, 0ul, 18446744073709551615ul> >::kClassLoader, jni::kDefaultJvm> jni::OverloadRef<jni::Id<jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)5, 18446744073709551615ul, 0ul, 18446744073709551615ul>, (jni::IdType)6>::Invoke<char const (&) [10]>(_jclass*, _jobject*, jni::Id<jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)6, 18446744073709551615ul, 0ul, 18446744073709551615ul>&&...)+100) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #04 pc 00000000003561c4  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (jni::ConstructorValidator<jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul> >::ConstructorValidator<char const (&) [10], 0>(char const (&) [10])+96) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #05 pc 0000000000356154  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (jni::ValidatorProxy<jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul> >::ValidatorProxy<char const (&) [10], 0>(char const (&) [10])+28) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #06 pc 0000000000356128  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (jni::Entry<(jni::LifecycleType)0, jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, jni::ScopedTerminalTag>::Entry<char const (&) [10], 0>(char const (&) [10])+28) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #07 pc 00000000003560fc  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (jni::EntryBase<jni::Entry<(jni::LifecycleType)0, jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, jni::ScopedTerminalTag>, (jni::LifecycleType)0, jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, _jstring*>::EntryBase<char const (&) [10], 0>(char const (&) [10])+28) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #08 pc 00000000003560d0  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (jni::Entry<(jni::LifecycleType)0, jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, _jstring*, jni::ScopedTerminalTag>::Entry<char const (&) [10], 0>(char const (&) [10])+28) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #09 pc 00000000003560a4  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (jni::EntryBase<jni::Entry<(jni::LifecycleType)0, jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, _jstring*, jni::ScopedTerminalTag>, (jni::LifecycleType)0, jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, _jobject*>::EntryBase<char const (&) [10], 0>(char const (&) [10])+28) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #10 pc 0000000000356078  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (jni::Entry<(jni::LifecycleType)0, jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, _jobject*, _jstring*, jni::ScopedTerminalTag>::Entry<char const (&) [10], 0>(char const (&) [10])+28) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #11 pc 000000000035604c  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (jni::Scoped<(jni::LifecycleType)0, jni::JniT<_jstring*, jni::kJavaLangString, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, _jobject*, _jstring*>::Scoped<char const (&) [10], 0>(char const (&) [10])+28) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #12 pc 0000000000355b40  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (jni::LocalString::LocalString<char const (&) [10], 0>(char const (&) [10])+28) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #13 pc 0000000000355e28  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (xplpc::proxy::JNIPlatformProxy::hasMapping(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)+48) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #14 pc 000000000034f838  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (auto xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&)::operator()<std::__ndk1::shared_ptr<xplpc::proxy::PlatformProxy> >(auto const&) const+52) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #15 pc 000000000034daf4  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (auto std::__ndk1::find_if<std::__ndk1::__wrap_iter<std::__ndk1::shared_ptr<xplpc::proxy::PlatformProxy>*>, xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&)>(auto, auto, xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&))+76) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #16 pc 000000000034d348  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)+392) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #17 pc 000000000034d144  /data/app/~~9_DDmcNCmk6CysXaR4YoyA==/com.xplpc.library.test-k_dNH4z4aVAN2rTKhK_QoQ==/lib/arm64/libxplpc.so (Java_com_xplpc_proxy_PlatformProxy_callNativeProxy+88) (BuildId: 2fe99f9b44159d6f4b6ec30ba95a4d113b69a0d2)
09-06 12:26:51.481 15525 15525 F DEBUG   :       #18 pc 0000000000440554  /apex/com.android.art/lib64/libart.so (art_quick_generic_jni_trampoline+148) (BuildId: e24a1818231cfb1649cb83a5d2869598)

Library initialization

My library is initialized inside a ContentProvider to auto init when android app initialize:
https://github.com/xplpc/xplpc/blob/main/kotlin/android/lib/library/src/main/java/com/xplpc/platform/PlatformInitializer.kt

from jni-bind.

paulocoutinhox commented on July 22, 2024

And the code is changed to this:

void JNIPlatformProxy::initializePlatform()
{
    // set jvm from platform jvm
    static ::jni::JvmRef<::jni::kDefaultJvm> jvm{platformJavaVM};

    // call initialize platform method
    printf("Test 1: %s\n", ::jni::LocalString{"Testing 1"}.Pin().ToString().data());
}

void JNIPlatformProxy::finalize()
{
    finalizePlatform();
}

void JNIPlatformProxy::finalizePlatform()
{
    ::jni::StaticRef<kPlatformProxy>{}("onFinalizePlatform");

    // reset
    this->platformJavaVM = nullptr;
}

void JNIPlatformProxy::callProxy(const std::string &key, const std::string &data)
{
    ::jni::StaticRef<kPlatformProxy>{}("onNativeProxyCall", key, data);
}

bool JNIPlatformProxy::hasMapping(const std::string &name)
{
    printf("Test 2: %s\n", ::jni::LocalString{"Testing 2"}.Pin().ToString().data());
    return false;
}

from jni-bind.

jwhpryor commented on July 22, 2024

This happens when JNIEnv* hasn't been captured under the hood. I think I might know what's wrong.

This is maybe happening because the JvmRef is not being setup correctly, or you are invoking this from another thread and not using ThreadGuard, or, you are doing it correctly and exposing a bug.

With some digging, I've managed to repro a failure where calling a method on a class for the first time from another thread causes failure (I've filed #190).

Could you try the following, copy the OnLoad call from above and get rid of your JvmRef. If that doesn't work, create a fake call on the proxy class.

Sorry for the pain.

from jni-bind.

jwhpryor commented on July 22, 2024

FYI I've created #191 to add unit testing coverage of static strings. Nothing was broken, but it helps further isolate the cause of the issue.

from jni-bind.

paulocoutinhox commented on July 22, 2024

Hi,

I've created a project to test in a more isolated project:
https://github.com/paulocoutinhox/jni-bind-test

It is working.

I will add a ContentProvider initializer/load method like i do in XPLPC to understand what is wrong.

from jni-bind.

paulocoutinhox commented on July 22, 2024

Bah :(

I add content provider and it was initialized and work without problems.

I don't understand what is the difference :(

from jni-bind.

paulocoutinhox commented on July 22, 2024

I add the same classes/structure that im using on xplpc project and it works on sample.

I don't know why it don't work on xplpc project, since i copy from there.

from jni-bind.

jwhpryor commented on July 22, 2024

I think it's because your JniEnv is not initialised because your JvmRef either isn't constructed yet or is destroyed. It's either that or the bug I mentioned in my code.

Sorry, I'm a bit slammed to try diving into a full sample right now, but, did you manage to grok my last response? I think it possibly gave some context that's helpful

Otherwise, just start from the simplest call you can make that fails and build up from there I think is your best bet (like it sounds like you are).

from jni-bind.

paulocoutinhox commented on July 22, 2024

Hi,

Yes, i tried you code:

JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* pjvm, void* reserved) {
  static jni::JvmRef<jni::kDefaultJvm> jvm{pjvm};

  return JNI_VERSION_1_6;
}

I migrate to your code, but the same error happen:

#include "xplpc/proxy/JNIPlatformProxy.hpp"
#include "spdlog/spdlog.h"

#include <cassert>

namespace xplpc
{
namespace proxy
{

std::shared_ptr<JNIPlatformProxy> JNIPlatformProxy::instance = nullptr;

std::shared_ptr<JNIPlatformProxy> JNIPlatformProxy::shared()
{
    if (instance == nullptr)
    {
        instance = std::make_shared<JNIPlatformProxy>();
    }

    return instance;
}

void JNIPlatformProxy::initialize()
{
    initializePlatform();
}

void JNIPlatformProxy::initializePlatform()
{
    // set jvm from platform jvm
    static ::jni::JvmRef<::jni::kDefaultJvm> jvm{platformJavaVM};

    // call initialize platform method
    ::jni::StaticRef<kPlatformProxy>{}("onInitializePlatform");
}

void JNIPlatformProxy::finalize()
{
    finalizePlatform();
}

void JNIPlatformProxy::finalizePlatform()
{
    ::jni::StaticRef<kPlatformProxy>{}("onFinalizePlatform");

    // reset
    this->platformJavaVM = nullptr;
}

void JNIPlatformProxy::callProxy(const std::string &key, const std::string &data)
{
    ::jni::StaticRef<kPlatformProxy>{}("onNativeProxyCall", key, data);
}

bool JNIPlatformProxy::hasMapping(const std::string &name)
{
    return ::jni::StaticRef<kPlatformProxy>{}("onHasMapping", name);
}

void JNIPlatformProxy::onNativeProxyCallback(const jstring &key, const std::string &data)
{
    ::jni::StaticRef<kPlatformProxy>{}("onNativeProxyCallback", key, data);
}

void JNIPlatformProxy::setPlatformJavaVM(JavaVM *pjvm)
{
    this->platformJavaVM = pjvm;
}

} // namespace proxy
} // namespace xplpc

Error:

09-11 15:17:09.261 14833 14833 F DEBUG   : Cause: null pointer dereference
09-11 15:17:09.261 14833 14833 F DEBUG   :     x0  0000000000000000  x1  0000000000002e6a  x2  00000072abc41a3b  x3  00000072abc4c3e7
09-11 15:17:09.261 14833 14833 F DEBUG   :     x4  00000072abc4c500  x5  b400007345a87150  x6  0000000000000000  x7  0000000000000000
09-11 15:17:09.261 14833 14833 F DEBUG   :     x8  b400007345a8714f  x9  fffffffffffffff8  x10 0000000000017000  x11 0000000000000002
09-11 15:17:09.261 14833 14833 F DEBUG   :     x12 0000000045a87157  x13 0000000000000000  x14 0000000000000000  x15 0000000000000000
09-11 15:17:09.261 14833 14833 F DEBUG   :     x16 00000072abeb98b0  x17 00000072abdc3754  x18 00000072a5c14000  x19 b4000074957021b0
09-11 15:17:09.261 14833 14833 F DEBUG   :     x20 0000000000000000  x21 0000000000000000  x22 00000072afb775a4  x23 0000000000002071
09-11 15:17:09.261 14833 14833 F DEBUG   :     x24 0000007321000880  x25 00000072a6b16db0  x26 00000072a6b16dbc  x27 00000072a6b16db0
09-11 15:17:09.261 14833 14833 F DEBUG   :     x28 00000072a6b16cb0  x29 00000072a6b16710
09-11 15:17:09.261 14833 14833 F DEBUG   :     lr  00000072abdc2544  sp  00000072a6b166f0  pc  00000072abdc3774  pst 0000000060001000
09-11 15:17:09.261 14833 14833 F DEBUG   : backtrace:
09-11 15:17:09.261 14833 14833 F DEBUG   :       #00 pc 0000000000356774  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (_JNIEnv::GetStaticMethodID(_jclass*, char const*, char const*)+32) (BuildId: 937e757925631fb69baefbb1dcd05f6210bafb12)
09-11 15:17:09.261 14833 14833 F DEBUG   :       #01 pc 0000000000355540  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (jni::JniHelper::GetStaticMethodID(_jclass*, char const*, char const*)+40) (BuildId: 937e757925631fb69baefbb1dcd05f6210bafb12)
09-11 15:17:09.261 14833 14833 F DEBUG   :       #02 pc 0000000000359098  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)::'lambda'()::operator()() const+108) (BuildId: 937e757925631fb69baefbb1dcd05f6210bafb12)
09-11 15:17:09.261 14833 14833 F DEBUG   :       #03 pc 0000000000358f94  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (_jmethodID* jni::metaprogramming::DoubleLockedValue<_jmethodID*>::LoadAndMaybeInit<jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)::'lambda'()>(jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)::'lambda'())+148) (BuildId: 937e757925631fb69baefbb1dcd05f6210bafb12)
09-11 15:17:09.261 14833 14833 F DEBUG   :       #04 pc 0000000000358e90  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)+128) (BuildId: 937e757925631fb69baefbb1dcd05f6210bafb12)
09-11 15:17:09.261 14833 14833 F DEBUG   :       #05 pc 0000000000358d50  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (unsigned char jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::Invoke<std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&>(_jclass*, _jobject*, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)+56) (BuildId: 937e757925631fb69baefbb1dcd05f6210bafb12)
09-11 15:17:09.261 14833 14833 F DEBUG   :       #06 pc 0000000000358d08  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (auto jni::StaticRef<xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm>::InvocableMapCall<3ul, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&>(char const*, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&) const+56) (BuildId: 937e757925631fb69baefbb1dcd05f6210bafb12)
09-11 15:17:09.261 14833 14833 F DEBUG   :       #07 pc 0000000000354e24  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (auto jni::metaprogramming::InvocableMapEntry<jni::StaticRef<xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm>, jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>::static_v, jni::Static<std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > >, std::__ndk1::tuple<> >, &(jni::Static<std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > >, std::__ndk1::tuple<> >::methods_), 3ul>::operator()<std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&>(char const*, 3ul&&...) [enable_if:((std::__ndk1::basic_string_view<char, std::__ndk1::char_traits<char> >)(fp)) == (std::__ndk1::tuple_element<3ul, std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > > >::type const& std::__ndk1::get<3ul, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > >(std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > > const&)(jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>::static_v.*&(jni::Static<std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Re
09-11 15:17:09.261 14833 14833 F DEBUG   :
09-11 15:17:09.261 14833 14833 F DEBUG   :       #08 pc 0000000000354da8  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (xplpc::proxy::JNIPlatformProxy::hasMapping(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)+52) (BuildId: 937e757925631fb69baefbb1dcd05f6210bafb12)
09-11 15:17:09.261 14833 14833 F DEBUG   :       #09 pc 000000000034e968  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (auto xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&)::operator()<std::__ndk1::shared_ptr<xplpc::proxy::PlatformProxy> >(auto const&) const+52) (BuildId: 937e757925631fb69baefbb1dcd05f6210bafb12)
09-11 15:17:09.261 14833 14833 F DEBUG   :       #10 pc 000000000034cc24  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (auto std::__ndk1::find_if<std::__ndk1::__wrap_iter<std::__ndk1::shared_ptr<xplpc::proxy::PlatformProxy>*>, xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&)>(auto, auto, xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&))+76) (BuildId: 937e757925631fb69baefbb1dcd05f6210bafb12)
09-11 15:17:09.261 14833 14833 F DEBUG   :       #11 pc 000000000034c478  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)+392) (BuildId: 937e757925631fb69baefbb1dcd05f6210bafb12)
09-11 15:17:09.261 14833 14833 F DEBUG   :       #12 pc 000000000034c274  /data/app/~~wCBehQspoKabaoHmbg5sWQ==/com.xplpc.library.test-uTgQu08Unz_yXYW9N2QkDg==/lib/arm64/libxplpc.so (Java_com_xplpc_proxy_PlatformProxy_callNativeProxy+88) (BuildId: 937e757925631fb69baefbb1dcd05f6210bafb12)

from jni-bind.

paulocoutinhox commented on July 22, 2024

Hi,

One thing that i discover now is that it is working on XPLPC sample project, but not on tests.

Have any different between run a sample android project or run the tests when use this library?

2023-09-11 16:24:11.410 15998-15998 XPLPC                   com.xplpc.runner                     D  [XPLPC : initialize]
2023-09-11 16:24:11.411 15998-15998 XPLPC                   com.xplpc.runner                     D  [NativeLib : initialize] Loading XPLPC native library...
2023-09-11 16:24:11.442 15998-15998 XPLPC                   com.xplpc.runner                     D  [2023-09-11 16:24:11.441] [android] [debug] [JNIPlatformProxy : initializePlatform] 1
2023-09-11 16:24:11.442 15998-15998 XPLPC                   com.xplpc.runner                     D  [2023-09-11 16:24:11.442] [android] [debug] [JNIPlatformProxy : initializePlatform] 2
2023-09-11 16:24:11.443 15998-15998 XPLPC                   com.xplpc.runner                     D  [2023-09-11 16:24:11.443] [android] [debug] [JNIPlatformProxy : initializePlatform] 3
2023-09-11 16:24:11.452 15998-15998 XPLPC                   com.xplpc.runner                     E  XPLPC::onInitializePlatform - OK
2023-09-11 16:24:11.452 15998-15998 XPLPC                   com.xplpc.runner                     D  [2023-09-11 16:24:11.452] [android] [debug] [JNIPlatformProxy : initializePlatform] 4
2023-09-11 16:24:11.452 15998-15998 XPLPC                   com.xplpc.runner                     D  [NativeLib : initialize] XPLPC native library loaded
2023-09-11 16:24:11.457 15998-15998 XPLPC                   com.xplpc.runner                     D  [Application : onCreate]
2023-09-11 16:24:11.458 15998-15998 XPLPC                   com.xplpc.runner                     D  [Application : initializeStrictMode] Initializing strict mode...
2023-09-11 16:24:11.466 15998-15998 XPLPC                   com.xplpc.runner                     D  [Application : initializeXPLPC]

from jni-bind.

paulocoutinhox commented on July 22, 2024

On sample application run is load the library in the correct sequence, see (1 to 7) and when i press a button to call native method it show number 8 without problems:

2023-09-11 16:59:14.961  4430-4430  ForceDarkHelperStubImpl com.xplpc.runner                     I  initialize for com.xplpc.runner , ForceDarkOrigin
2023-09-11 16:59:14.963  4430-4430  om.xplpc.runner         com.xplpc.runner                     D  JNI_OnLoad success
2023-09-11 16:59:14.964  4430-4430  MiuiForceDarkConfig     com.xplpc.runner                     I  setConfig density:2.750000, mainRule:0, secondaryRule:0, tertiaryRule:0
2023-09-11 16:59:14.969  4430-4430  NetworkSecurityConfig   com.xplpc.runner                     D  No Network Security Config specified, using platform default
2023-09-11 16:59:14.970  4430-4430  NetworkSecurityConfig   com.xplpc.runner                     D  No Network Security Config specified, using platform default
2023-09-11 16:59:14.974  4430-4430  MultiDex                com.xplpc.runner                     I  VM with version 2.1.0 has multidex support
2023-09-11 16:59:14.974  4430-4430  MultiDex                com.xplpc.runner                     I  Installing application
2023-09-11 16:59:14.974  4430-4430  MultiDex                com.xplpc.runner                     I  VM has multidex support, MultiDex support library is disabled.
2023-09-11 16:59:14.975  4430-4430  Compatibil...geReporter com.xplpc.runner                     D  Compat change id reported: 183155436; UID 10506; state: ENABLED
2023-09-11 16:59:15.001  4430-4430  XPLPC                   com.xplpc.runner                     D  [XPLPC : initialize]
2023-09-11 16:59:15.001  4430-4430  XPLPC                   com.xplpc.runner                     D  [NativeLib : initialize] Loading XPLPC native library...
2023-09-11 16:59:15.007  4430-4430  XPLPC                   com.xplpc.runner                     D  [2023-09-11 16:59:15.006] [android] [debug] [JNIPlatformProxy : setPlatformJavaVM] 1
2023-09-11 16:59:15.007  4430-4430  XPLPC                   com.xplpc.runner                     D  [2023-09-11 16:59:15.007] [android] [debug] [JNIPlatformProxy : initializePlatform] 2
2023-09-11 16:59:15.008  4430-4430  XPLPC                   com.xplpc.runner                     D  [2023-09-11 16:59:15.008] [android] [debug] [JNIPlatformProxy : initializePlatform] 3
2023-09-11 16:59:15.009  4430-4430  XPLPC                   com.xplpc.runner                     E  XPLPC::onInitializePlatform - OK
2023-09-11 16:59:15.009  4430-4430  XPLPC                   com.xplpc.runner                     D  [2023-09-11 16:59:15.009] [android] [debug] [JNIPlatformProxy : initializePlatform] 4
2023-09-11 16:59:15.009  4430-4430  XPLPC                   com.xplpc.runner                     D  [NativeLib : initialize] XPLPC native library loaded
2023-09-11 16:59:15.011  4430-4430  XPLPC                   com.xplpc.runner                     D  [Application : onCreate]
2023-09-11 16:59:15.011  4430-4430  XPLPC                   com.xplpc.runner                     D  [Application : initializeStrictMode] Initializing strict mode...
2023-09-11 16:59:15.011  4430-4430  XPLPC                   com.xplpc.runner                     D  [Application : initializeXPLPC]

Button press:

2023-09-11 17:00:17.746  4430-4430  XPLPC                   com.xplpc.runner                     D  [2023-09-11 17:00:17.746] [android] [debug] [JNIPlatformProxy : hasMapping] 8
2023-09-11 17:00:17.747  4430-4430  XPLPC                   com.xplpc.runner                     D  [2023-09-11 17:00:17.747] [android] [debug] [callbackLogin] Not logged
2023-09-11 17:00:17.747  4430-4430  XPLPC                   com.xplpc.runner                     D  [2023-09-11 17:00:17.747] [android] [debug] [JNIPlatformProxy : onNativeProxyCallback] 7

On tests it load the library in the correct sequence, see (1 to 7) but when run the test it will call the number 8 and crash:

2023-09-11 16:55:57.526  4021-4021  ForceDarkHelperStubImpl com.xplpc.library.test               I  initialize for com.xplpc.library.test , ForceDarkOrigin
2023-09-11 16:55:57.528  4021-4021  pc.library.test         com.xplpc.library.test               D  JNI_OnLoad success
2023-09-11 16:55:57.528  4021-4021  MiuiForceDarkConfig     com.xplpc.library.test               I  setConfig density:2.750000, mainRule:0, secondaryRule:0, tertiaryRule:0
2023-09-11 16:55:57.532  4021-4021  NetworkSecurityConfig   com.xplpc.library.test               D  No Network Security Config specified, using platform default
2023-09-11 16:55:57.533  4021-4021  NetworkSecurityConfig   com.xplpc.library.test               D  No Network Security Config specified, using platform default
2023-09-11 16:55:57.533  4021-4021  MonitoringInstr         com.xplpc.library.test               I  newApplication called!
2023-09-11 16:55:57.534  4021-4021  Compatibil...geReporter com.xplpc.library.test               D  Compat change id reported: 183155436; UID 10525; state: ENABLED
2023-09-11 16:55:57.540  4021-4021  XPLPC                   com.xplpc.library.test               D  [XPLPC : initialize]
2023-09-11 16:55:57.540  4021-4021  XPLPC                   com.xplpc.library.test               D  [NativeLib : initialize] Loading XPLPC native library...
2023-09-11 16:55:57.546  4021-4021  XPLPC                   com.xplpc.library.test               D  [2023-09-11 16:55:57.546] [android] [debug] [JNIPlatformProxy : setPlatformJavaVM] 1
2023-09-11 16:55:57.546  4021-4021  XPLPC                   com.xplpc.library.test               D  [2023-09-11 16:55:57.546] [android] [debug] [JNIPlatformProxy : initializePlatform] 2
2023-09-11 16:55:57.547  4021-4021  XPLPC                   com.xplpc.library.test               D  [2023-09-11 16:55:57.547] [android] [debug] [JNIPlatformProxy : initializePlatform] 3
2023-09-11 16:55:57.547  4021-4021  XPLPC                   com.xplpc.library.test               E  XPLPC::onInitializePlatform - OK
2023-09-11 16:55:57.548  4021-4021  XPLPC                   com.xplpc.library.test               D  [2023-09-11 16:55:57.547] [android] [debug] [JNIPlatformProxy : initializePlatform] 4
2023-09-11 16:55:57.548  4021-4021  XPLPC                   com.xplpc.library.test               D  [NativeLib : initialize] XPLPC native library loaded
2023-09-11 16:55:57.550  4021-4021  MonitoringInstr         com.xplpc.library.test               I  Instrumentation started!
2023-09-11 16:55:57.563  4021-4021  AndroidJUnitRunner      com.xplpc.library.test               I  onCreate Bundle[{testTimeoutSeconds=31536000, class=com.xplpc.library.ClientTest#batteryLevel, debug=true, additionalTestOutputDir=/sdcard/Android/media/com.xplpc.library.test/additional_test_output}]
2023-09-11 16:55:57.563  4021-4021  AndroidJUnitRunner      com.xplpc.library.test               I  Waiting for debugger to connect...
2023-09-11 16:55:57.563  4021-4021  System.out              com.xplpc.library.test               I  Sending WAIT chunk
2023-09-11 16:55:57.763  4021-4021  System.out              com.xplpc.library.test               I  Debugger has connected
2023-09-11 16:55:57.763  4021-4021  System.out              com.xplpc.library.test               I  waiting for debugger to settle...
2023-09-11 16:55:57.964  4021-4021  System.out              com.xplpc.library.test               I  waiting for debugger to settle...
2023-09-11 16:55:58.164  4021-4021  System.out              com.xplpc.library.test               I  waiting for debugger to settle...
2023-09-11 16:55:58.365  4021-4021  System.out              com.xplpc.library.test               I  waiting for debugger to settle...
2023-09-11 16:55:58.565  4021-4021  System.out              com.xplpc.library.test               I  waiting for debugger to settle...
2023-09-11 16:55:58.766  4021-4021  System.out              com.xplpc.library.test               I  waiting for debugger to settle...
2023-09-11 16:55:58.966  4021-4021  System.out              com.xplpc.library.test               I  waiting for debugger to settle...
2023-09-11 16:55:59.167  4021-4021  System.out              com.xplpc.library.test               I  waiting for debugger to settle...
2023-09-11 16:55:59.368  4021-4021  System.out              com.xplpc.library.test               I  waiting for debugger to settle...
2023-09-11 16:55:59.569  4021-4021  System.out              com.xplpc.library.test               I  waiting for debugger to settle...
2023-09-11 16:55:59.769  4021-4021  System.out              com.xplpc.library.test               I  waiting for debugger to settle...
2023-09-11 16:55:59.970  4021-4021  System.out              com.xplpc.library.test               I  waiting for debugger to settle...
2023-09-11 16:56:00.170  4021-4021  System.out              com.xplpc.library.test               I  debugger has settled (1393)
2023-09-11 16:56:00.171  4021-4021  AndroidJUnitRunner      com.xplpc.library.test               I  Debugger connected.
2023-09-11 16:56:00.181  4021-4021  TestEventClient         com.xplpc.library.test               V  No service name argument was given (testDiscoveryService, testRunEventService or orchestratorService)
2023-09-11 16:56:00.221  4021-4049  AndroidJUnitRunner      com.xplpc.library.test               D  onStart is called.
2023-09-11 16:56:00.232  4021-4021  FileUtils               com.xplpc.library.test               E  err open mi_exception_log errno=2
2023-09-11 16:56:00.233  4021-4021  FileUtils               com.xplpc.library.test               E  err write to mi_exception_log
2023-09-11 16:56:00.239  4021-4021  MonitoringInstr         com.xplpc.library.test               I  No JSBridge.
2023-09-11 16:56:00.299  4021-4049  TestRequestBuilder      com.xplpc.library.test               D  Skipping class path scanning and directly running [com.xplpc.library.ClientTest]
2023-09-11 16:56:00.363  4021-4049  AndroidJUnitRunner      com.xplpc.library.test               D  Use the raw file system for managing file I/O.
2023-09-11 16:56:00.389  4021-4049  TestExecutor            com.xplpc.library.test               D  Adding listener androidx.test.internal.runner.listener.LogRunListener
2023-09-11 16:56:00.390  4021-4049  TestExecutor            com.xplpc.library.test               D  Adding listener androidx.test.internal.runner.listener.InstrumentationResultPrinter
2023-09-11 16:56:00.390  4021-4049  TestExecutor            com.xplpc.library.test               D  Adding listener androidx.test.internal.runner.listener.ActivityFinisherRunListener
2023-09-11 16:56:00.390  4021-4049  TestExecutor            com.xplpc.library.test               D  Adding listener androidx.test.internal.runner.listener.TraceRunListener
2023-09-11 16:56:00.400  4021-4049  TestRunner              com.xplpc.library.test               I  run started: 1 tests
2023-09-11 16:56:00.404  4021-4049  TestRunner              com.xplpc.library.test               I  started: batteryLevel(com.xplpc.library.ClientTest)
2023-09-11 16:56:00.484  4021-4049  XPLPC                   com.xplpc.library.test               D  [2023-09-11 16:56:00.484] [android] [debug] [JNIPlatformProxy : hasMapping] 8
2023-09-11 16:56:00.484  4021-4049  libc                    com.xplpc.library.test               A  Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0 in tid 4049 (roidJUnitRunner), pid 4021 (pc.library.test)
2023-09-11 16:56:01.389  4067-4067  DEBUG                   crash_dump64                         A  Cmdline: com.xplpc.library.test
2023-09-11 16:56:01.389  4067-4067  DEBUG                   crash_dump64                         A  pid: 4021, tid: 4049, name: roidJUnitRunner  >>> com.xplpc.library.test <<<
2023-09-11 16:56:01.389  4067-4067  DEBUG                   crash_dump64                         A        #00 pc 0000000000357270  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (_JNIEnv::GetStaticMethodID(_jclass*, char const*, char const*)+32) (BuildId: f56b89a490c20df89e635c837fe74a59ea9e3034)
2023-09-11 16:56:01.389  4067-4067  DEBUG                   crash_dump64                         A        #01 pc 000000000035603c  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (jni::JniHelper::GetStaticMethodID(_jclass*, char const*, char const*)+40) (BuildId: f56b89a490c20df89e635c837fe74a59ea9e3034)
2023-09-11 16:56:01.389  4067-4067  DEBUG                   crash_dump64                         A        #02 pc 0000000000359b94  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)::'lambda'()::operator()() const+108) (BuildId: f56b89a490c20df89e635c837fe74a59ea9e3034)
2023-09-11 16:56:01.389  4067-4067  DEBUG                   crash_dump64                         A        #03 pc 0000000000359a90  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (_jmethodID* jni::metaprogramming::DoubleLockedValue<_jmethodID*>::LoadAndMaybeInit<jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)::'lambda'()>(jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)::'lambda'())+148) (BuildId: f56b89a490c20df89e635c837fe74a59ea9e3034)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #04 pc 000000000035998c  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::GetMethodID(_jclass*)+128) (BuildId: f56b89a490c20df89e635c837fe74a59ea9e3034)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #05 pc 000000000035984c  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (unsigned char jni::OverloadRef<jni::Id<jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>, (jni::IdType)2, 3ul, 0ul, 18446744073709551615ul>, (jni::IdType)3>::Invoke<std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&>(_jclass*, _jobject*, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)+56) (BuildId: f56b89a490c20df89e635c837fe74a59ea9e3034)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #06 pc 0000000000359804  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (auto jni::StaticRef<xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm>::InvocableMapCall<3ul, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&>(char const*, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&) const+56) (BuildId: f56b89a490c20df89e635c837fe74a59ea9e3034)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #07 pc 00000000003558a4  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (auto jni::metaprogramming::InvocableMapEntry<jni::StaticRef<xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm>, jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>::static_v, jni::Static<std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > >, std::__ndk1::tuple<> >, &(jni::Static<std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > >, std::__ndk1::tuple<> >::methods_), 3ul>::operator()<std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&>(char const*, 3ul&&...) [enable_if:((std::__ndk1::basic_string_view<char, std::__ndk1::char_traits<char> >)(fp)) == (std::__ndk1::tuple_element<3ul, std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > > >::type const& std::__ndk1::get<3ul, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > >(std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<unsigned char> >, std::__ndk1::tuple<jni::Params<_jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > > > const&)(jni::JniT<_jobject*, xplpc::proxy::JNIPlatformProxy::kPlatformProxy, jni::kDefaultClassLoader, jni::kDefaultJvm, 0ul, 18446744073709551615ul, 18446744073709551615ul>::static_v.*&(jni::Static<std::__ndk1::tuple<jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<> > >, jni::Method<std::__ndk1::tuple<jni::Return<void> >, std::__ndk1::tuple<jni::Params<_jstring*, _jstring*> > >, jni::Method<std::__ndk1::tuple<jni::Re
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #08 pc 0000000000355800  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (xplpc::proxy::JNIPlatformProxy::hasMapping(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)+64) (BuildId: f56b89a490c20df89e635c837fe74a59ea9e3034)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #09 pc 000000000034f328  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (auto xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&)::operator()<std::__ndk1::shared_ptr<xplpc::proxy::PlatformProxy> >(auto const&) const+52) (BuildId: f56b89a490c20df89e635c837fe74a59ea9e3034)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #10 pc 000000000034d5e4  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (auto std::__ndk1::find_if<std::__ndk1::__wrap_iter<std::__ndk1::shared_ptr<xplpc::proxy::PlatformProxy>*>, xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&)>(auto, auto, xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)::'lambda'(auto const&))+76) (BuildId: f56b89a490c20df89e635c837fe74a59ea9e3034)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #11 pc 000000000034ce38  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (xplpc::client::Client::call(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::function<void (std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)>)+392) (BuildId: f56b89a490c20df89e635c837fe74a59ea9e3034)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #12 pc 000000000034cc34  /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/lib/arm64/libxplpc.so (Java_com_xplpc_proxy_PlatformProxy_callNativeProxy+88) (BuildId: f56b89a490c20df89e635c837fe74a59ea9e3034)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #15 pc 00000000001abf64  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (com.xplpc.proxy.PlatformProxy$Companion.callNativeProxy+0)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #17 pc 00000000001a9db6  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (com.xplpc.library.ClientTest.batteryLevel+146)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #23 pc 00000000002c24e4  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.model.FrameworkMethod$1.runReflectiveCall+20)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #25 pc 00000000002ba504  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.internal.runners.model.ReflectiveCallable.run+0)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #27 pc 00000000002c273e  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.model.FrameworkMethod.invokeExplosively+10)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #29 pc 00000000002bb50a  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.internal.runners.statements.InvokeMethod.evaluate+14)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #31 pc 00000000002c1104  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner$3.evaluate+4)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #33 pc 00000000002bfefc  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.BlockJUnit4ClassRunner$1.evaluate+16)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #35 pc 00000000002c1b4c  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner.runLeaf+16)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #37 pc 00000000002c061e  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.BlockJUnit4ClassRunner.runChild+38)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #39 pc 00000000002c05de  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.BlockJUnit4ClassRunner.runChild+6)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #41 pc 00000000002c116c  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner$4.run+12)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #43 pc 00000000002c1088  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner$1.schedule+0)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #45 pc 00000000002c1b02  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner.runChildren+50)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #47 pc 00000000002c17a0  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner.access$100+0)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #49 pc 00000000002c10c8  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner$2.evaluate+8)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #51 pc 00000000002c1104  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner$3.evaluate+4)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #53 pc 00000000002c1a70  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner.run+32)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #55 pc 000000000017360c  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (androidx.test.ext.junit.runners.AndroidJUnit4.run+4)
2023-09-11 16:56:01.390  4067-4067  DEBUG                   crash_dump64                         A        #57 pc 00000000002c222c  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.Suite.runChild+0)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #59 pc 00000000002c2212  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.Suite.runChild+6)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #61 pc 00000000002c116c  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner$4.run+12)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #63 pc 00000000002c1088  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner$1.schedule+0)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #65 pc 00000000002c1b02  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner.runChildren+50)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #67 pc 00000000002c17a0  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner.access$100+0)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #69 pc 00000000002c10c8  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner$2.evaluate+8)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #71 pc 00000000002c1104  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner$3.evaluate+4)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #73 pc 00000000002c1a70  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runners.ParentRunner.run+32)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #75 pc 00000000002be0f2  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runner.JUnitCore.run+50)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #77 pc 00000000002be0a4  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (org.junit.runner.JUnitCore.run+8)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #79 pc 000000000017997c  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (androidx.test.internal.runner.TestExecutor.execute+16)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #81 pc 0000000000179a28  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (androidx.test.internal.runner.TestExecutor.execute+20)
2023-09-11 16:56:01.391  4067-4067  DEBUG                   crash_dump64                         A        #83 pc 0000000000184626  [anon:dalvik-classes.dex extracted in memory from /data/app/~~Kp0YwmVfZdv7cRfEwK-rfw==/com.xplpc.library.test-AvRzofzX9WkVj0FFtD8sRA==/base.apk] (androidx.test.runner.AndroidJUnitRunner.onStart+274)
2023-09-11 16:56:01.451  1780-4081  PowerHalWrapper         system_server                        I  <NotifyAppCrash> pack:com.xplpc.library.test ,pid:com.xplpc.library.test == myPid:1780

The source is:

#include "xplpc/proxy/JNIPlatformProxy.hpp"
#include "spdlog/spdlog.h"

#include <cassert>

namespace xplpc
{
namespace proxy
{

std::shared_ptr<JNIPlatformProxy> JNIPlatformProxy::instance = nullptr;

std::shared_ptr<JNIPlatformProxy> JNIPlatformProxy::shared()
{
    if (instance == nullptr)
    {
        instance = std::make_shared<JNIPlatformProxy>();
    }

    return instance;
}

void JNIPlatformProxy::initialize()
{
    initializePlatform();
}

void JNIPlatformProxy::initializePlatform()
{
    spdlog::debug("[JNIPlatformProxy : initializePlatform] 2");

    // set jvm from platform jvm
    static ::jni::JvmRef<::jni::kDefaultJvm> jvm{platformJavaVM};

    spdlog::debug("[JNIPlatformProxy : initializePlatform] 3");

    // call initialize platform method
    ::jni::StaticRef<kPlatformProxy>{}("onInitializePlatform");

    spdlog::debug("[JNIPlatformProxy : initializePlatform] 4");
}

void JNIPlatformProxy::finalize()
{
    finalizePlatform();
}

void JNIPlatformProxy::finalizePlatform()
{
    spdlog::debug("[JNIPlatformProxy : finalizePlatform] 5");

    ::jni::StaticRef<kPlatformProxy>{}("onFinalizePlatform");

    // reset
    this->platformJavaVM = nullptr;
}

void JNIPlatformProxy::callProxy(const std::string &key, const std::string &data)
{
    spdlog::debug("[JNIPlatformProxy : callProxy] 6");
    ::jni::StaticRef<kPlatformProxy>{}("onNativeProxyCall", key, data);
}

bool JNIPlatformProxy::hasMapping(const std::string &name)
{
    spdlog::debug("[JNIPlatformProxy : hasMapping] 8");
    return ::jni::StaticRef<kPlatformProxy>{}("onHasMapping", name);
}

void JNIPlatformProxy::onNativeProxyCallback(const jstring &key, const std::string &data)
{
    spdlog::debug("[JNIPlatformProxy : onNativeProxyCallback] 7");
    ::jni::StaticRef<kPlatformProxy>{}("onNativeProxyCallback", key, data);
}

void JNIPlatformProxy::setPlatformJavaVM(JavaVM *pjvm)
{
    spdlog::debug("[JNIPlatformProxy : setPlatformJavaVM] 1");
    this->platformJavaVM = pjvm;
}

} // namespace proxy
} // namespace xplpc

There is anything special i need do in TEST envrionment?

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jwhpryor commented on July 22, 2024

Unfortunately it's really hard for me to read code without being able to run it and compile it :(

I'm pretty confident that you're seeing the null pointer because your JNIEnv is set to null but I don't see a reason for it. Without being able to compile and run your code it's not that easy for me to digest.

The top reasons I can think of are:

You're using it on another thread and not taking a ThreadGuard
You're using another JNI wrapper and it's tearing down

If you can submit a toy example as a pull request to JNI Bind of an existing test I can play with it, but I'm afraid I'm just not setup to build your project.

I assume this happens right away in the program? If you want, try setting the JniEnv manually with JniEnv::SetEnv. I'm afraid the only alternative I can suggest is working backwards from a good state. and adding piecewise until it breaks.

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paulocoutinhox commented on July 22, 2024

Hi @jwhpryor,

The PR is simple:
https://github.com/xplpc/xplpc/pull/46/files

It change few files and only about JNI.

To compile you can open it in Android Studio after compile:

Step 1:

git clone https://github.com/xplpc/xplpc.git -b "google-jni-bind"
cd xplpc
python3 xplpc.py kotlin-build --platform=android --build=debug

Step 2:

Open folder "kotlin/android/lib" in Android Studio and run the tests.

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jwhpryor commented on July 22, 2024

Hello! I think I've resolved as much as I can from this bug. It might be helpful if there's anything outstanding to please file a new bug since this one has gotten pretty large.

Per the secondary thread issue, I have a workaround coming shortly (it's actually intended behaviour on Android).

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paulocoutinhox commented on July 22, 2024

I’m still with the same problem. I generate a new header using your bazel task, but the problem persist only with jni-bind. Can you give some minutes of your time to help me? Em sex., 5 de jan. de 2024 às 21:13, Jamieson ***@***.***> escreveu:

…

Closed #188 <#188> as completed. — Reply to this email directly, view it on GitHub <#188 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AADAOWBZ5EDNI7BKXZLA33TYNCJKHAVCNFSM6AAAAAA4DX7ZL2VHI2DSMVQWIX3LMV45UABCJFZXG5LFIV3GK3TUJZXXI2LGNFRWC5DJN5XDWMJRGQYDMMRTHEYTIOI> . You are receiving this because you authored the thread.Message ID: ***@***.***>

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jwhpryor commented on July 22, 2024

Sorry, are you referring to the crash on the secondary thread? If so, please call SetFallbackLoader with an instance of your activity and it will do the rest.

I just realised that folks don't have documentation to run off and sadly the Android samples aren't public (and that's where I duplicated that crash).

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jwhpryor commented on July 22, 2024

FYI I uploaded the Android test that I used to test this fix here.

Sadly, I haven't managed to get these tests running under Bazel, but it at least shows the correct flow.

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paulocoutinhox commented on July 22, 2024

In my case, i initialize the main class with JVM on JNI_Onload method:

https://github.com/xplpc/xplpc/blob/google-jni-bind/jni/lib/src/xplpc/jni/platform.cpp#L26-L29

And it call "initializePlatform" that call jni-bind library:

https://github.com/xplpc/xplpc/blob/google-jni-bind/jni/lib/src/xplpc/proxy/JNIPlatformProxy.cpp#L26-L33

I don't understand what is the problem and why i will need have access to any activity, it don't make sense to me.

Can you help me?

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jwhpryor commented on July 22, 2024

I am sorry for slow response, I am in the middle of many work things 😓

Try calling jvm->SetFallbackClassLoaderFromJObject(fixture); like I do in the sample code for thread_test.

I agree it seems really stupid your JNI code should have anything to do with your Activity, but actually, there is complex behaviour behind the scene.

Android is different from Java because it has its own classloader. In regular Java, when a new thread is spawned it shares the same bootloader on other threads, so new classes are found, but on Android, not so. By setting a "fallback loader", native threads have an opportunity to capture a backdoor instance of the application classloader.

TBH I think it's kind of idiotic this is the behaviour, but I can only work around what exists, and this was the absolute best I could come up with (I tried really hard). Given the constraints, it's pretty good (but I still hate that you have to do it at all).

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paulocoutinhox commented on July 22, 2024

Hi,

What need be fixture, any jobject?

In my case, the only way to get a valid jobject that don't be released is the old code:

auto env = jniGetThreadEnv();

jclass ourClass = env->FindClass("com/xplpc/core/XPLPC");
jclass classClass = env->GetObjectClass(ourClass);
jmethodID getClassLoaderMethod = env->GetMethodID(classClass, "getClassLoader", "()Ljava/lang/ClassLoader;");
jobject tmp = env->CallObjectMethod(ourClass, getClassLoaderMethod);
classLoader = (jobject)env->NewGlobalRef(tmp);

But, if i need back and use the old code only to do it, i think that jni-bind is don't usable to Android (since i need use the old code).

Can you help me?

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jwhpryor commented on July 22, 2024

It just needs to be any Activity (or Application probably). You don't need to do the manual calls your highlighting above, that's basically what SetFallbackClassLoaderFromJObject is doing.

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