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From "Tim Ellison (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-5327) [classlib][JSPWiki] NPE in StringBuffer.getChars on start on Linux
Date Mon, 04 Feb 2008 12:37:08 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-5327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12565335#action_12565335
] 

Tim Ellison commented on HARMONY-5327:
--------------------------------------

Why is this a blocker? i.e. what is it blocking?

> [classlib][JSPWiki] NPE in StringBuffer.getChars on start on Linux
> ------------------------------------------------------------------
>
>                 Key: HARMONY-5327
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5327
>             Project: Harmony
>          Issue Type: Bug
>          Components: App-Oriented Bug Reports, Classlib
>    Affects Versions: 5.0M4
>         Environment: Linux, Tomcat
>            Reporter: Alexey Petrenko
>            Priority: Blocker
>
> JSPWiki can not start on Linux and throws the following NPEs:
> log4j:ERROR Error occured while converting date.
> java.lang.NullPointerException: bad arrayCopy
> 	at java.lang.VMMemoryManager.arrayCopy(Native Method)
> 	at java.lang.System.arraycopy(Unknown Source)
> 	at java.lang.AbstractStringBuilder.getChars(AbstractStringBuilder.java:319)
> 	at java.lang.StringBuffer.getChars(StringBuffer.java:476)
> 	at org.apache.log4j.helpers.ISO8601DateFormat.format(ISO8601DateFormat.java:128)
> 	at java.text.DateFormat.format(DateFormat.java:250)
> 	at org.apache.log4j.helpers.PatternParser$DatePatternConverter.convert(PatternParser.java:444)
> 	at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:64)
> 	at org.apache.log4j.PatternLayout.format(PatternLayout.java:503)
> 	at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:301)
> 	at org.apache.log4j.RollingFileAppender.subAppend(RollingFileAppender.java:236)
> 	at org.apache.log4j.WriterAppender.append(WriterAppender.java:159)
> 	at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:230)
> 	at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:65)
> 	at org.apache.log4j.Category.callAppenders(Category.java:203)
> 	at org.apache.log4j.Category.forcedLog(Category.java:388)
> 	at org.apache.log4j.Category.error(Category.java:319)
> 	at com.ecyrd.jspwiki.util.WikiBackgroundThread.run(WikiBackgroundThread.java:172)
> Small investigation has shown that the cause of NPE is null destination parameter of
StringBuffer.getChars method. The method should throw NPE in this case according to spec.
RI has the same behavior of this method.

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