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https://issues.apache.org/jira/browse/WW-4901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16290521#comment-16290521
]
ASF subversion and git services commented on WW-4901:
-----------------------------------------------------
Commit d082aaca2a6d2d3a37b374ad34f4ea8d091d09f1 in struts's branch
refs/heads/master from [~yasser.zamani]
[ https://gitbox.apache.org/repos/asf?p=struts.git;h=d082aac ]
WW-4901 Falls back if JarURLConnection was present already
> ClassCastException in JarEntryRevision
> --------------------------------------
>
> Key: WW-4901
> URL: https://issues.apache.org/jira/browse/WW-4901
> Project: Struts 2
> Issue Type: Bug
> Affects Versions: 2.5.14.1
> Environment: Websphere 8.5.5.12
> Reporter: Michael Hum
> Assignee: Yasser Zamani
> Priority: Critical
> Fix For: 2.5.15
>
>
> After upgrading to struts 2.5.14.1 we are unable to startup the application
> on websphere. The logs show class cast exceptions in the JarEntryRevision
> class:
> {code}
> [12/7/17 16:50:18:323 EST] 00000502 JarEntryRevis W
> com.opensymphony.xwork2.util.fs.JarEntryRevision build Could not create
> JarEntryRevision for
> [wsjar:file:/icosdata/IBM/WebSphere/AppServer/profiles/CmpAppSrv01/installedApps/CMPDMDEVCell01/icos-dev.ear/icos-web.war/WEB-INF/lib/struts2-core-2.5.14.1.jar!/struts-default.xml]!
> java.lang.ClassCastException:
> com.ibm.ws.classloader.Handler$ClassLoaderURLConnection incompatible with
> java.net.JarURLConnection
> at
> com.opensymphony.xwork2.util.fs.JarEntryRevision.build(JarEntryRevision.java:44)
> at
> com.opensymphony.xwork2.util.fs.DefaultFileManager.monitorFile(DefaultFileManager.java:94)
> at
> com.opensymphony.xwork2.util.fs.DefaultFileManager.loadFile(DefaultFileManager.java:73)
> at
> com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java:1054)
> at
> com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadDocuments(XmlConfigurationProvider.java:198)
> at
> com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.init(XmlConfigurationProvider.java:165)
> at
> com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:166)
> at
> com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
> at
> org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:957)
> at
> org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:463)
> at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:496)
> at
> org.apache.struts2.dispatcher.InitOperations.initDispatcher(InitOperations.java:73)
> at
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:61)
> at
> com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.init(FilterInstanceWrapper.java:145)
> at
> com.ibm.ws.webcontainer.filter.WebAppFilterManager._loadFilter(WebAppFilterManager.java:607)
> at
> com.ibm.ws.webcontainer.filter.WebAppFilterManager.loadFilter(WebAppFilterManager.java:514)
> at
> com.ibm.ws.webcontainer.filter.WebAppFilterManager.getFilterInstanceWrapper(WebAppFilterManager.java:319)
> at
> com.ibm.ws.webcontainer.filter.WebAppFilterManager.getFilterChain(WebAppFilterManager.java:392)
> at
> com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:931)
> at
> com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1107)
> at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3980)
> at
> com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)
> at
> com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:1016)
> at
> com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1817)
> at
> com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:200)
> at
> com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463)
> at
> com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:530)
> at
> com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:316)
> at
> com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:287)
> at
> com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
> at
> com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
> at
> com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)
> at
> com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
> at com.ibm.io.async.AsyncChannelFuture$1.run(AsyncChannelFuture.java:205)
> at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1892)
> {code}
> We took a look at tracked it down to WW-4869 which modified the code to cast
> to JarURLConnection:
> {code:java}
> JarURLConnection conn = null;
> try {
> conn = (JarURLConnection) fileUrl.openConnection();
> ...
> {code}
> Unfortunately the URLConnection in websphere doesn't inherit from
> JarURLConnection:
> {code:java}
> static class ClassLoaderURLConnection extends URLConnection { ... }
> {code}
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