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From "Ivan Popov (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-2893) [jdktools][jdwp] remove workaround for JVMTI GetStackTrace() problem
Date Thu, 28 Dec 2006 10:35:22 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-2893?page=all ]

Ivan Popov updated HARMONY-2893:

    Estimated Complexity: Novice
                Priority: Minor  (was: Major)

> [jdktools][jdwp] remove workaround for JVMTI GetStackTrace() problem
> --------------------------------------------------------------------
>                 Key: HARMONY-2893
>                 URL: http://issues.apache.org/jira/browse/HARMONY-2893
>             Project: Harmony
>          Issue Type: Bug
>          Components: JDK
>            Reporter: Ivan Popov
>            Priority: Minor
> There were noticed problems with implementation of JVMTI function GetStackTrace in some
JVMs, it may ignore 'start_depth' parameter and return stack frames always starting from 0.
Implementation of JDWP commands ThreadReference::Frames and StackFrame.ThisObject provides
workaround for this problem by requesting from JVMTI all stack frames and removing not interesting
ones from the list. Though this increases usability of Harmony JDWP agent with different JVMs,
it may negatively affect performance. It makes sense to check how this workaround affect real
performance to decide if it worth to be removed.

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