Eclipse Community Forums: Memory Analyzer » error when opening a heap dump in eclipse MAT (1.5)

Home » Eclipse Projects » Memory Analyzer » error when opening a heap dump in eclipse MAT (1.5)(I created a dump using below command jmap -heap:format=b <process id> and getting the below error when I open it from Eclipse memory analyzer. java.io.EOFException at org.eclipse.mat.parser.io.)

error when opening a heap dump in eclipse MAT (1.5) [message #1707068]

Wed, 02 September 2015 00:38

Eclipse User

I have uploaded the dump file which I can't open from MAT .
java.io.EOFException
at org.eclipse.mat.parser.io.PositionInputStream.readFully(PositionInputStream.java:108)
at org.eclipse.mat.parser.io.PositionInputStream.readLong(PositionInputStream.java:157)
at org.eclipse.mat.hprof.AbstractParser.readID(AbstractParser.java:153)
at org.eclipse.mat.hprof.Pass1Parser.readLoadClass(Pass1Parser.java:275)
at org.eclipse.mat.hprof.Pass1Parser.read(Pass1Parser.java:157)
at org.eclipse.mat.hprof.HprofIndexBuilder.fill(HprofIndexBuilder.java:80)
at org.eclipse.mat.parser.internal.SnapshotFactoryImpl.parse(SnapshotFactoryImpl.java:222)
at org.eclipse.mat.parser.internal.SnapshotFactoryImpl.openSnapshot(SnapshotFactoryImpl.java:126)
at org.eclipse.mat.snapshot.SnapshotFactory.openSnapshot(SnapshotFactory.java:145)
at org.eclipse.mat.ui.snapshot.ParseHeapDumpJob.run(ParseHeapDumpJob.java:83)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)

Attachment: Terminal_Status_Rest_tws2_heap.bin
(Size: 5.37MB, Downloaded 4893 times)

Re: error when opening a heap dump in eclipse MAT (1.5) [message #1708572 is a reply to message #1707068]

Thu, 17 September 2015 11:04

Eclipse User

I had a look. It seems that the file is corrupt. MAT fails to read a few bytes (the ID of some class record), as it reaches the end of the file.
Tried opening the dump with the tools coming with the JDK -> same result.

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