[jira] [Commented] (FELIX-3553) Use of parallel class loading capability of JDK7

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

    [ https://issues.apache.org/jira/browse/FELIX-3553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13589319#comment-13589319 ] 

Sahoo commented on FELIX-3553:
------------------------------

Could this feature implementation be the reason behind a recent regression that we are seeing in GlassFish as reported in [1]? The exception stack is like this:

Caused by: java.lang.IllegalArgumentException: com.sun.xml.ws.transport.http.servlet
at java.lang.ClassLoader.definePackage(ClassLoader.java:1601)
at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.findClass(BundleWiringImpl.java:2190)
at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1472)
at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:75)
at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1923)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at org.apache.felix.framework.BundleWiringImpl.getClassByDelegation(BundleWiringImpl.java:1357)
at org.apache.felix.framework.BundleWiringImpl.searchDynamicImports(BundleWiringImpl.java:1598)
at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1479)
at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:75)
at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1923)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at org.apache.felix.framework.Felix.loadBundleClass(Felix.java:1832)
at org.apache.felix.framework.BundleImpl.loadClass(BundleImpl.java:937)
at org.jvnet.hk2.osgiadapter.OSGiModuleImpl$4$1.run(OSGiModuleImpl.java:434)
at org.jvnet.hk2.osgiadapter.OSGiModuleImpl$4$1.run(OSGiModuleImpl.java:431)
at java.security.AccessController.doPrivileged(Native Method)
at org.jvnet.hk2.osgiadapter.OSGiModuleImpl$4.loadClass(OSGiModuleImpl.java:431)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at com.sun.enterprise.v3.server.APIClassLoaderServiceImpl$APIClassLoader.loadClass(APIClassLoaderServiceImpl.java:238)
at java.lang.ClassLoader.loadClass(ClassLoader.java:410)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1579)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:363)
at java.util.ServiceLoader$1.next(ServiceLoader.java:445)
at org.glassfish.web.loader.ServletContainerInitializerUtil.getInterestList(ServletContainerInitializerUtil.java:193)
at org.apache.catalina.core.StandardContext.callServletContainerInitializers(StandardContext.java:5955)
at com.sun.enterprise.web.WebModule.callServletContainerInitializers(WebModule.java:779)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:5888)

IllegalArgumentException is thrown by ClassLoader.definePackage if package already exists as per javadoc of that method.

[1] http://java.net/jira/browse/GLASSFISH-19712
                
> Use of parallel class loading capability of JDK7
> ------------------------------------------------
>
>                 Key: FELIX-3553
>                 URL: https://issues.apache.org/jira/browse/FELIX-3553
>             Project: Felix
>          Issue Type: Improvement
>          Components: Framework
>            Reporter: Sahoo
>            Assignee: Richard S. Hall
>             Fix For: framework-4.2.0
>
>         Attachments: FELIX-3553.txt, felix_parallel_classload.patch
>
>
> Is there any plan to make use of this feature [1] in Felix?
> [1] http://download.java.net/jdk7/archive/b124/docs/technotes/guides/lang/cl-mt.html 

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