[WW-4177] get NPE when upgrade from 2.3.4 to 2.3.15.1

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Not A Problem
• Affects Version/s: 2.3.15.1
• Fix Version/s: 2.3.16
• Component/s: Integration

Environment

Struts Portlet Plug-in 2.3.15.1 + Struts-Jquery 3.3.1 in Webshpere Portal Server 7.0

• Assignee: Unassigned
• Reporter: Simon
• Created: 15/Aug/13 08:11
• Updated: 16/Aug/13 05:21
• Resolved: 16/Aug/13 05:21

Description

after upgraded to 2.3.15.1, there are a lot of NPE in the application console log. before upgrade there is no error in the log.
this happens when try to get the jquery.js from struts.jquery plugin jar file. this NPE happens intermittently.

 
[8/15/13 16:01:55:564 CST] 0000003f webapp        E com.ibm.ws.webcontainer.webapp.WebApp logError SRVE0293E: [Servlet ??]-[null]: java.lang.NullPointerException
	at org.apache.struts2.dispatcher.DefaultStaticContentLoader.findStaticResource(DefaultStaticContentLoader.java:182)
	at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeStaticResourceRequest(ExecuteOperations.java:62)
	at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:94)
	at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:184)
	at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
	at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:77)
	at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:908)
	at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:997)
	at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.invokeFilters(DefaultExtensionProcessor.java:1043)
	at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java:963)
	at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3933)
	at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:276)
	at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:931)
	at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1583)
	at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:186)
	at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:445)
	at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:504)
	at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:301)
	at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:83)
	at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
	at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
	at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
	at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
	at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
	at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
	at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
	at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1604)