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Strange Problem with struts2-convention-plugin-2.1.8.1.jar

 
Greenhorn
Posts: 8
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Hi,

I have a web application built on Struts2 framework. Lately, I have been using a custom filter which modifies the URL based on a pattern. This filter uses javax/servlet/http/HttpServletRequestWrapper to modify the url params. This filter works fine till now. But the moment I add the struts2-convention-plugin-2.1.8.1.jar into my WEB-INF/lib directory, I get the following error:

Could not load javax/servlet/http/HttpServletRequestWrapper.class - [unknown location]
at com.opensymphony.xwork2.util.finder.ClassFinder.readClassDef(ClassFinder.java:769)
at com.opensymphony.xwork2.util.finder.ClassFinder.access$400(ClassFinder.java:48)
at com.opensymphony.xwork2.util.finder.ClassFinder$InfoBuildingVisitor.extractSuperInterfaces(ClassFinder.java:814)
at com.opensymphony.xwork2.util.finder.ClassFinder$InfoBuildingVisitor.visit(ClassFinder.java:801)
at org.objectweb.asm.xwork.ClassReader.accept(Unknown Source)
at org.objectweb.asm.xwork.ClassReader.accept(Unknown Source)
at com.opensymphony.xwork2.util.finder.ClassFinder.readClassDef(ClassFinder.java:764)
at com.opensymphony.xwork2.util.finder.ClassFinder.<init>(ClassFinder.java:149)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.findActions(PackageBasedActionConfigBuilder.java:352)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildActionConfigs(PackageBasedActionConfigBuilder.java:317)
at org.apache.struts2.convention.ClasspathPackageProvider.loadPackages(ClasspathPackageProvider.java:53)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:204)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:374)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:418)
at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:190)
at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:662)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.jetty.Server.doStart(Server.java:224)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:185)
at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:146)
at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:222)
at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:171)
at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:120)
at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:96)

Actually I want to use the Rest Plugin for struts2, and that requires this jar. Please note that I am using Google AppEngine platform to run the web application. Could this be a problem?? But then how does the filter work when I am not using the convention plugin? Please help me to solve this issue!

Regards
Sam
 
Don't get me started about those stupid light bulbs.
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