it seems to me like a beginners question but i never got this thing working even if i deploy to jboss already a few months. i always have to restart my jboss server to correctly deploy my war file. otherwise i always get this annoying "org.apache.jasper.JasperException: Unable to compile class for JSP" message.
how do i correct this problem? i am using jboss 4.0.1 windows xp sp2 java version 1.0.4_05 eclipse + myeclipse (i do my deployment with the myeclipse tools) my application is a web project using hibernate, struts and tiles i hope someone can help me, because that costs me everytime about one minute to restart the server and thats really annoying when correcting small problems and deploying often here is the full stack trace out of the jboss server.log: anonymous wrote : | 2005-04-08 14:00:54,446 ERROR [org.jboss.web.localhost.Engine] ApplicationDispatcher[/EventManagement] Servlet.service() for servlet jsp threw exception | java.lang.NullPointerException | at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:153) | at org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:464) | at org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:374) | at java.lang.ClassLoader.loadClass(ClassLoader.java:235) | at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) | at java.lang.Class.forName0(Native Method) | at java.lang.Class.forName(Class.java:141) | at org.apache.tools.ant.AntTypeDefinition.getTypeClass(AntTypeDefinition.java:161) | at org.apache.tools.ant.AntTypeDefinition.getExposedClass(AntTypeDefinition.java:135) | at org.apache.tools.ant.ComponentHelper$AntTypeTable.getExposedClass(ComponentHelper.java:837) | at org.apache.tools.ant.ComponentHelper.getDataTypeDefinitions(ComponentHelper.java:365) | at org.apache.tools.ant.Project.getDataTypeDefinitions(Project.java:942) | at org.apache.tools.ant.types.AbstractFileSet.getDataTypeName(AbstractFileSet.java:309) | at org.apache.tools.ant.types.AbstractFileSet.setupDirectoryScanner(AbstractFileSet.java:374) | at org.apache.tools.ant.types.AbstractFileSet.getDirectoryScanner(AbstractFileSet.java:350) | at org.apache.tools.ant.taskdefs.MatchingTask.getDirectoryScanner(MatchingTask.java:186) | at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:752) | at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382) | at org.apache.jasper.compiler.Compiler.compile(Compiler.java:472) | at org.apache.jasper.compiler.Compiler.compile(Compiler.java:451) | at org.apache.jasper.compiler.Compiler.compile(Compiler.java:439) | at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511) | at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295) | at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) | at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) | at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) | at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:704) | at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:474) | at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:409) | at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312) | at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1056) | at org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:261) | at org.apache.struts.tiles.TilesRequestProcessor.processTilesDefinition(TilesRequestProcessor.java:237) | at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:300) | at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:231) | at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164) | at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:397) | at javax.servlet.http.HttpServlet.service(HttpServlet.java:697) | at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) | at org.displaytag.filter.ResponseOverrideFilter.doFilter(ResponseOverrideFilter.java:125) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) | at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) | at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) | at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) | at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198) | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) | at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:66) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) | at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) | at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:54) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) | at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) | at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) | at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) | at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929) | at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) | at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799) | at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705) | at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577) | at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683) | at java.lang.Thread.run(Thread.java:534) | | | 2005-04-08 14:00:54,446 ERROR [org.jboss.web.localhost.Engine] StandardWrapperValve[action]: Servlet.service() for servlet action threw exception | java.lang.NullPointerException | at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:153) | at org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:464) | at org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:374) | at java.lang.ClassLoader.loadClass(ClassLoader.java:235) | at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) | at java.lang.Class.forName0(Native Method) | at java.lang.Class.forName(Class.java:141) | at org.apache.tools.ant.AntTypeDefinition.getTypeClass(AntTypeDefinition.java:161) | at org.apache.tools.ant.AntTypeDefinition.getExposedClass(AntTypeDefinition.java:135) | at org.apache.tools.ant.ComponentHelper$AntTypeTable.getExposedClass(ComponentHelper.java:837) | at org.apache.tools.ant.ComponentHelper.getDataTypeDefinitions(ComponentHelper.java:365) | at org.apache.tools.ant.Project.getDataTypeDefinitions(Project.java:942) | at org.apache.tools.ant.types.AbstractFileSet.getDataTypeName(AbstractFileSet.java:309) | at org.apache.tools.ant.types.AbstractFileSet.setupDirectoryScanner(AbstractFileSet.java:374) | at org.apache.tools.ant.types.AbstractFileSet.getDirectoryScanner(AbstractFileSet.java:350) | at org.apache.tools.ant.taskdefs.MatchingTask.getDirectoryScanner(MatchingTask.java:186) | at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:752) | at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382) | at org.apache.jasper.compiler.Compiler.compile(Compiler.java:472) | at org.apache.jasper.compiler.Compiler.compile(Compiler.java:451) | at org.apache.jasper.compiler.Compiler.compile(Compiler.java:439) | at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511) | at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295) | at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) | at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) | at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) | at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:704) | at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:474) | at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:409) | at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312) | at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1056) | at org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:261) | at org.apache.struts.tiles.TilesRequestProcessor.processTilesDefinition(TilesRequestProcessor.java:237) | at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:300) | at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:231) | at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164) | at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:397) | at javax.servlet.http.HttpServlet.service(HttpServlet.java:697) | at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) | at org.displaytag.filter.ResponseOverrideFilter.doFilter(ResponseOverrideFilter.java:125) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) | at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) | at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) | at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) | at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198) | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) | at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:66) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) | at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) | at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:54) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) | at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) | at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) | at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) | at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) | at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929) | at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) | at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799) | at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705) | at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577) | at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683) | at java.lang.Thread.run(Thread.java:534) | View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3873215#3873215 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3873215 ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. 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