Make it work on Windows about grunt-html

[PangbornIdentity]

as Default:
Running "htmllint:all: task

Error; Error: not found: java

Although java is running on my windows 7 system.
-rich

[jzaefferer]

I've tested it on my own Windows 7 machine and it works fine. I need more information to reproduce the issue.

[fnagel]

Same problem on Win 8.1. Tried a fresh npm install in Windows default cmd with admin rights -- without success. I'm pretty sure it works on my Windows7 machine. I will try to verify that.

Any ideas?

[jzaefferer]

Have you checked if you can run java --version outside of grunt on the command line?

See also this StackOverflow entry, which has comments asking the same question: http://stackoverflow.com/questions/20264628/grunt-htmllint-error-cant-find-java

[fnagel]

This works:

$ java -version
java version "1.7.0_51"
Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
Java HotSpot(TM) Client VM (build 24.51-b03, mixed mode, sharing)

[LaurentGoderre]

Just to be sure though, are you running grunt and java -version from the same command line?

[fnagel]

Yes.

[LaurentGoderre]

What happens if you run java -jar [path to jar] (drag and drop the actual JAR to be safer)?

[fnagel]

This seems to work when using command line. I'm not sure what is meant with drag and drop?

$ java -jar node_modules/grunt-html/vnu.jar
Usage:

    java -jar vnu.jar [--entities] [--errors-only] [--no-stream]
         [--format gnu|xml|json|text] [--help] [--html] [--schema URL]
         [--verbose] [--version] FILES

    java -cp vnu.jar nu.validator.servlet.Main 8888

    java -cp vnu.jar nu.validator.client.HttpClient FILES

For detailed usage information, use "java -jar vnu.jar --help" or see:

  http://validator.github.io/

To read from stdin, use "-" as the filename, like this: "java -jar vnu.jar - ".

[LaurentGoderre]

Well that is very strange....

[jzaefferer]

Can you try this?

npm install which
node -e 'console.log(require("which").sync("java"));'

On my system that logs /usr/bin/java. You should get something...

[fnagel]

Getting an error:

$ node -e 'console.log(require("which").sync("java"));'

d:\GIT\_jQuery\jquery-ui\node_modules\which\which.js:83
  throw new Error("not found: "+cmd)
        ^
Error: not found: java
    at Function.whichSync [as sync] (d:\GIT\_jQuery\jquery-ui\node_modules\which\which.js:83:9)
    at [eval]:1:30
    at Object.<anonymous> ([eval]-wrapper:6:22)
    at Module._compile (module.js:456:26)
    at evalScript (node.js:532:25)
    at startup (node.js:80:7)
    at node.js:902:3

[LaurentGoderre]

Is Java in your PATH?

[fnagel]

No. I added it and tried a PATH var like this but without success:

%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\HashiCorp\Vagrant\bin;C:\Program Files (x86)\Git\cmd;C:\Program Files\nodejs\;C:\Program Files (x86)\Java\jre7\bin

One question: do I need java AND javac (aka JRE or SDK)? It seems I've only installed the runtime.

[LaurentGoderre]

You should only need the JRE

[jzaefferer]

@fnagel did you ever get this resolved?

[fnagel]

Nope, but I could try again... it worked before so...

[fnagel]

Tried this again for datepicker (after merging master). Deleted node_modules directory and rerun npm install with admin privileges.

It still fails but I get a different error message:

Running "htmllint:all" (htmllint) task
>> Error: Exception in thread "main" java.lang.StackOverflowError
>>      at com.thaiopensource.relaxng.impl.DuplicateAttributeDetector.startChoice(Unknown Source)
>>      at com.thaiopensource.relaxng.impl.ChoicePattern.checkRestrictions(Unknown Source)

[LaurentGoderre]

@fnagel the latest version should fix this problem

[jzaefferer]

You may have to explicitly install this module if the version in package.json is out of date, so

npm install grunt-html

[fnagel]

I've updated the jQueryUI package json to grunt-html 1.4.0 and did same installation process as described above. Same error.

Installing with npm install grunt-html doesn't help either.

[LaurentGoderre]

WHich version of Windows, 64 or 32 bits? What version of Java and what architecture of java (32 or 64)

[fnagel]

Windows: 8.1 Pro 64bit
Java: 1.7.0_55 32bit

[LaurentGoderre]

This stack size thing is a nightmare...

[LaurentGoderre]

@fnagel It would probably help a lot to install 64bits JRE on a 64bits system but I'll see if there something that can be done.

[LaurentGoderre]

@jzaefferer perhaps we have to detect the Java architecture instead of the system one.

[jzaefferer]

It would probably help a lot to install 64bits JRE on a 64bits system

That should be worth a try.

perhaps we have to detect the Java architecture instead of the system one.

My installed java responds to java -version (--version is unrecognized, ugh). Parsing this looks terrible:

java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode)

Gonna reopen this anyway.

[LaurentGoderre]

From my research, we have too look for 64-Bit Server VM If it's not present then it's 32bits

[fnagel]

I've tried to change to 64bit architecture: installed 64bit, changed system path variable and rebooted -- command line still seems to use 32bit:

$ java -version
java version "1.7.0_55"
Java(TM) SE Runtime Environment (build 1.7.0_55-b14)
Java HotSpot(TM) Client VM (build 24.55-b03, mixed mode, sharing)

I will give it another try by removing java completely and then reinstall it.

[fnagel]

I have absolutely no clue why but grunt htmllint (testcase is jQuery UI master branch) works now.

I did not change anything java specific (since my last comment). Can somebody confirm it#s working on Windows 8.1?

Anyway, I'm happy as I'm finally able to run all tests for jQuery UI.

[jzaefferer]

"Did you try turning it off and on again?"

Let's hope this is now resolved and we can leave this ticket closed.

[LaurentGoderre]

We still need to add a fix to detect the Java version. That's an issue that come's up fairly often with our developers.