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List:       openjdk-serviceability-dev
Subject:    Re: PING: RFR: JDK-8151815: Could not parse core image with JSnap.
From:       Yasumasa Suenaga <yasuenag () gmail ! com>
Date:       2016-03-29 12:02:17
Message-ID: 56FA6EC9.90107 () gmail ! com
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PING: Could you review it?


Yasumasa


On 2016/03/22 21:24, Yasumasa Suenaga wrote:
> PING: Could you review it?
>
> Yasumasa
>
> 2016/03/14 23:39 "Yasumasa Suenaga" <yasuenag@gmail.com <mailto:yasuenag@gmail.com>>:
>
>     Hi all,
>
>     When I use `jhsdb jsnap` to get PerfCounter from core images, I encountered NPE:
>     -------------
>     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)
>     -------------
>
>     PerfMemory::destroy() clears all members which are used in JSnap.
>     Thus NPE is occurred.
>
>     I uploaded webrev for this issue.
>     Could you review it?
>
>     http://cr.openjdk.java.net/~ysuenaga/JDK-8151815/webrev.00/
>
>     I cannot access JPRT.
>     So I need a Sponsor.
>
>
>     Thanks,
>
>     Yasumasa
>
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