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From "Nathan Beyer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-5327) [classlib][JSPWiki] NPE in StringBuffer.getChars on start on Linux
Date Sat, 20 Dec 2008 17:21:44 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-5327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12658301#action_12658301
] 

Nathan Beyer commented on HARMONY-5327:
---------------------------------------

Is this still an issue?

If so, is it a class library or a JIT issue?

> [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: Critical
>
> 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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