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List:       openjdk-hotspot-runtime-dev
Subject:    Re: RFR (S) 8062307: 'Reference handler' thread triggers assert w/ TraceThreadEvents
From:       David Holmes <david.holmes () oracle ! com>
Date:       2014-10-30 4:23:53
Message-ID: 5451BD59.4060202 () oracle ! com
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On 30/10/2014 2:13 PM, David Holmes wrote:
> Bug: https://bugs.openjdk.java.net/browse/JDK-8062307
>
> Webrev: http://cr.openjdk.java.net/~dholmes/8062307/webrev/
>
> It turns out that the little known TraceThreadEvents logic has been
> broken since at least very early in JDK 5. A develop-only option it was
> intended to show when different Thread methods were called (the VM side
> of certain java.lang.Thread methods). While that sounds potentially
> useful for debugging it seems that in practice it is not - this has been
> broken for over 10 years with nobody noticing: it is unused. So rather
> than fix unused code it is proposed to simply delete it instead.

Correction this has been noticed in the past:

https://bugs.openjdk.java.net/browse/JDK-6757482 (2008-10-09 06:51)

http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2008-March/001586.html

David

> Thanks,
> David
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