[jira] Commented: (HARMONY-6285) [JDWP][Java6] Fix a bug in Execute method of GetValuesHandler that might result in crash

["Jim Yu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HARMONY-6285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12735456#action_12735456 ] 

Jim Yu commented on HARMONY-6285:
---------------------------------

Verified at r798015. Thanks, Regis.

> [JDWP][Java6] Fix a bug in Execute method of GetValuesHandler that might result in crash
> ----------------------------------------------------------------------------------------
>
>                 Key: HARMONY-6285
>                 URL: https://issues.apache.org/jira/browse/HARMONY-6285
>             Project: Harmony
>          Issue Type: Bug
>          Components: JDK
>    Affects Versions: 5.0M10
>            Reporter: Jim Yu
>            Assignee: Regis Xu
>             Fix For: 5.0M11
>
>         Attachments: HARMONY-6285.diff
>
>
> In Execute method of GetValuesHandler, if the array object can't be retrieved from the MapFromObjectID method, the value for it would be null. 
> Then, in the following JNI method, a null value passed to it would definitely result in a crash. To solve the problem, we should throw an exception to notify the upper level method that "GetValues: ReadArrayID() returned NULL".
> jclass arrObjClass = jni->GetObjectClass(arrayObject);

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