HprofHeap ArrayIndexOutOfBoundsException about visualvm

[PuszekSE]

@thurka @kcpeppe
I've actually found that same exact issue within one of production server's heap dumps.

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Log Session: Thursday, July 5, 2018 1:05:10 PM CEST
[...]
INFO [org.netbeans.modules.autoupdate.updateprovider.DownloadListener]: Reading URL https://visualvm.java.net/uc/8u40/updates.xml.gz?unique=0bd161e76-cd08-420e-886c-0b90d07b593d_60aeb6a7-8f78-4aa6-a510-cf3a82ec828c failed (java.io.IOException: Server returned HTTP response code: 503 for URL: http://www.oracle.com/splash/java.net/maintenance/index.html)
INFO [org.netbeans.modules.autoupdate.ui.actions.AutoupdateCheckScheduler]
java.io.IOException: Server returned HTTP response code: 503 for URL: http://www.oracle.com/splash/java.net/maintenance/index.html
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1840)
at sun.net.www.protocol.http.HttpURLConnection.access$200(HttpURLConnection.java:90)
at sun.net.www.protocol.http.HttpURLConnection$9.run(HttpURLConnection.java:1433)
at sun.net.www.protocol.http.HttpURLConnection$9.run(HttpURLConnection.java:1431)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessController.doPrivilegedWithCombiner(AccessController.java:782)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1430)
at org.netbeans.modules.autoupdate.updateprovider.NetworkAccess$Task$2.call(NetworkAccess.java:154)
at org.netbeans.modules.autoupdate.updateprovider.NetworkAccess$Task$2.call(NetworkAccess.java:122)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused: java.io.IOException: Server returned HTTP response code: 503 for URL: http://www.oracle.com/splash/java.net/maintenance/index.html
at org.netbeans.modules.autoupdate.updateprovider.DownloadListener.notifyException(DownloadListener.java:64)
at org.netbeans.modules.autoupdate.updateprovider.AutoupdateCatalogCache.copy(AutoupdateCatalogCache.java:207)
at org.netbeans.modules.autoupdate.updateprovider.AutoupdateCatalogCache.writeCatalogToCache(AutoupdateCatalogCache.java:60)
at org.netbeans.modules.autoupdate.updateprovider.AutoupdateCatalogProvider.refresh(AutoupdateCatalogProvider.java:115)
at org.netbeans.modules.autoupdate.services.UpdateUnitProviderImpl.refresh(UpdateUnitProviderImpl.java:141)
at org.netbeans.api.autoupdate.UpdateUnitProvider.refresh(UpdateUnitProvider.java:157)
[catch] at org.netbeans.modules.autoupdate.ui.actions.AutoupdateCheckScheduler$4.run(AutoupdateCheckScheduler.java:116)
at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1384)
at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1994)
WARNING [org.netbeans.TopSecurityManager]: use of system property netbeans.home has been obsoleted in favor of InstalledFileLocator/Places at org.netbeans.Clusters.relativeDirsWithHome(Clusters.java:104)
SEVERE [org.openide.util.RequestProcessor]: Error in RequestProcessor com.sun.tools.visualvm.heapdump.impl.HeapDumpView$MasterViewSupport$1
java.lang.ArrayIndexOutOfBoundsException: -11
at org.netbeans.lib.profiler.heap.HprofHeap.fillTagBounds(HprofHeap.java:1013)
at org.netbeans.lib.profiler.heap.HprofHeap.(HprofHeap.java:95)
at org.netbeans.lib.profiler.heap.HeapFactory.createHeap(HeapFactory.java:49)
at org.netbeans.lib.profiler.heap.HeapFactory.createHeap(HeapFactory.java:31)
at org.netbeans.modules.profiler.heapwalk.HeapWalker.createHeap(HeapWalker.java:155)
at org.netbeans.modules.profiler.heapwalk.HeapWalker.(HeapWalker.java:54)
at com.sun.tools.visualvm.heapdump.impl.HeapDumpView$MasterViewSupport$1.run(HeapDumpView.java:116)
at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1384)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1994)
java.lang.ArrayIndexOutOfBoundsException
SEVERE [org.openide.util.RequestProcessor]: Error in RequestProcessor com.sun.tools.visualvm.heapdump.impl.HeapDumpView$MasterViewSupport$1
java.lang.ArrayIndexOutOfBoundsException
SEVERE [org.openide.util.RequestProcessor]: Error in RequestProcessor com.sun.tools.visualvm.heapdump.impl.HeapDumpView$MasterViewSupport$1
java.lang.ArrayIndexOutOfBoundsException
SEVERE [org.openide.util.RequestProcessor]: Error in RequestProcessor com.sun.tools.visualvm.heapdump.impl.HeapDumpView$MasterViewSupport$1
java.lang.ArrayIndexOutOfBoundsException
INFO [org.netbeans.core.windows.persistence]: [PersistenceManager.getTopComponentForID] Problem when deserializing TopComponent for tcID:'com#002Esun#002Etools72625A45#002EDataSourceWindow_2'. Reason: Top component com#002Esun#002Etools72625A45#002EDataSourceWindow_2 could not be located or loaded from Components folder.
com.sun.tools.visualvm.heapdump.impl.HeapDumpView$MasterViewSupport$1
java.lang.ArrayIndexOutOfBoundsException
SEVERE [org.openide.util.RequestProcessor]: Error in RequestProcessor com.sun.tools.visualvm.heapdump.impl.HeapDumpView$MasterViewSupport$1
java.lang.ArrayIndexOutOfBoundsException

[thurka]

What do you mean by it drops into source code that isn't readily available ? As you can see from the package org.netbeans.lib.profiler.heap, this code is from NetBeans. So the best way to debug this is to debug it NetBeans dev. build. I guess you already know how to debug NetBeans, am I right? BTW: Can you share the heap dump? It looks like it is somehow broken.

[kcpeppe]

Sorry to say I can't share the heap dump. I've not debugged NetBeans but I think I'm going to have to sort that one out.

[thurka]

FYI: org.netbeans.lib.profiler.heap package is in lib.profiler module.

[thurka]

Closing the issue until we are able to reproduce ArrayIndexOutOfBoundsException.