Re: [mat-dev] How to open bug with large file

[Andrew Johnson <andrew_johnson@xxxxxxxxxx>]

From looking at the code for GarbageCleaner.java:222
the class loader isn't available for a class or isn't right.

See http://wiki.eclipse.org/MemoryAnalyzer/Adding_a_new_heap_dump_format_to_the_Memory_Analyzer
for how to turn on validation of the output from the parser.

Attaching very big files to Bugzilla
doesn't seem a good idea. In general large dumps either contain data which
people don't want made public or they are generated from test programs
and it might be possible to attach the test program instead, assuming the
dump is reproducible which a certain VM.

If you get stuck stepping through the
code to see what is wrong I might be able to take a look, though I haven't
quite got my environment set up properly after the move to Git - I seem
to have a wrong perspective in MAT when opening from the Eclipse debugger.

Andrew Johnson




From:      
 Kevin Grigorenko <kevin.grigorenko@xxxxxxxxxx>
To:      
 mat-dev@xxxxxxxxxxx
Date:      
 03/03/2015 13:59
Subject:    
   [mat-dev] How
to open bug with large file
Sent by:    
   mat-dev-bounces@xxxxxxxxxxx

---

I have a 148MB core dump which is causing
an ArrayIndexOutOfBoundsException in org.eclipse.mat.parser.internal.GarbageCleaner.clean
on the latest nightly. The maximum attachment size in bugzilla is 100MB.
Is there another way to share the dump when opening the bug report?

Here is the stack of the exception in case anyone has any immediate thoughts:
java.lang.ArrayIndexOutOfBoundsException
        at org.eclipse.mat.parser.internal.GarbageCleaner.clean(GarbageCleaner.java:222)
        at org.eclipse.mat.parser.internal.SnapshotFactoryImpl.parse(SnapshotFactoryImpl.java:246)
        at org.eclipse.mat.parser.internal.SnapshotFactoryImpl.openSnapshot(SnapshotFactoryImpl.java:141)
        at org.eclipse.mat.snapshot.SnapshotFactory.openSnapshot(SnapshotFactory.java:145)
        at org.eclipse.mat.ui.snapshot.ParseHeapDumpJob.run(ParseHeapDumpJob.java:84)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)

--
Kevin Grigorenko
IBM WebSphere Foundation SWAT Team
kevin.grigorenko@xxxxxxxxxx
Blog: https://www.ibm.com/developerworks/mydeveloperworks/blogs/kevgrig/
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