JDK-8151815 : Could not parse core image with JSnap.
- Type: Bug
- Component: hotspot
- Sub-Component: svc-agent
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- Submitted: 2016-03-14
- Updated: 2018-01-17
- Resolved: 2017-10-21
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| JDK 10 |
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10 b31Fixed  |
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Description
When I use `jhsdb jsnap` to get PerfCounter from core images, I encountered NPE:
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Exception in thread "main" java.lang.NullPointerException
at sun.jvm.hotspot.tools.JSnap.run(JSnap.java:45)
at sun.jvm.hotspot.tools.Tool.startInternal(Tool.java:260)
at sun.jvm.hotspot.tools.Tool.start(Tool.java:223)
at sun.jvm.hotspot.tools.Tool.execute(Tool.java:118)
at sun.jvm.hotspot.tools.JSnap.main(JSnap.java:67)
at sun.jvm.hotspot.SALauncher.runJSNAP(SALauncher.java:352)
at sun.jvm.hotspot.SALauncher.main(SALauncher.java:404)
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PerfMemory::destroy() clears all members which are used in JSnap.
Thus NPE is occurred.
http://mail.openjdk.java.net/pipermail/serviceability-dev/2016-January/018810.html
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