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https://issues.apache.org/jira/browse/JELLY-277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13045719#comment-13045719
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Sean Harp commented on JELLY-277:
---------------------------------
The compileScript method in org/apache/commons/jelly/JellyContext.java needs to
be synchronized as well. This solved the issue for us.
Prior to fixing this, I would experience nearly 50% failures with the error
above when running 12 jelly scripts simultaneously on an 8-core server. After
synchronizing compileScript, repeated tests with 50 simultaneous jelly scripts
were successful.
> XMLParser.configure is not threadsafe.
> --------------------------------------
>
> Key: JELLY-277
> URL: https://issues.apache.org/jira/browse/JELLY-277
> Project: Commons Jelly
> Issue Type: Bug
> Components: core / taglib.core
> Affects Versions: 1.0
> Environment: Linux 64bits, JDK build 1.6.0_01-b06
> Reporter: Yung-Lin Ho
>
> XMLParser will try to load jelly.properties from disk when it first being
> used. However, because XMLParser.configure method is not threadsafe, when I
> tried to run multiple jelly scripts/instance at the same time, XMLParser
> threw out the following error message
> java.lang.ClassNotFoundException: core
> at
> org.apache.tools.ant.AntClassLoader.findClassInComponents(AntClassLoader.java:1166)
> at org.apache.tools.ant.AntClassLoader.findClass(AntClassLoader.java:1107)
> at org.apache.tools.ant.AntClassLoader.loadClass(AntClassLoader.java:977)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at org.apache.commons.jelly.parser.XMLParser.createTag(XMLParser.java:985)
> java.lang.ClassNotFoundException: core
> at
> org.apache.commons.jelly.parser.XMLParser.createSAXException(XMLParser.java:1180)
> at org.apache.commons.jelly.parser.XMLParser.createTag(XMLParser.java:990)
> at
> org.apache.commons.jelly.parser.XMLParser.startElement(XMLParser.java:593)
> In order to fix this problem, we have to make ensureConfigured() and
> configure() synchronized methods.
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