1 Reply Latest reply on Mar 3, 2003 7:50 PM by Pascal Paradis-Théberge

    Compilation problem

    Pascal Paradis-Théberge Newbie

      I'm seeing this recurring problem with Tomcat, it started happening a few versions ago. It happens with both javac and jikes on both Windows and Linux. (jdk version is 1.4.1)

      What happens is that the jsp recompilation will fail and throw the attached exception. If I hit reload (sometimes a few times), it will eventually recompile the page.

      It doesn't seem to happen if I don't set the
      "DeleteWorkDirs" parameter to false.

      Has anybody else seen this?

      Thanks

      Pascal


      and now for the exception:


      2003-02-14 10:49:25,890 ERROR [org.jboss.web.localhost.Engine] StandardWrapperValve[jsp]: Servlet.service() for servlet jsp threw exception org.apache.jasper.JasperException: Unable to compile class for JSP
      at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:479)
      at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:184)
      at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
      at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
      at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
      at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:509)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
      at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:261)
      at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:360)
      at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:632)
      at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:632)
      at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:590)
      at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:707)
      at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530)
      at java.lang.Thread.run(Thread.java:536)
      2003-02-14 10:49:25,893 ERROR [org.jboss.web.localhost.Engine] ----- Root Cause
      -----
      java.lang.NullPointerException
      at org.apache.tools.ant.Project.setSystemProperties(Project.java:857)
      at org.apache.tools.ant.Project.init(Project.java:311)
      at org.apache.jasper.compiler.Compiler.getProject(Compiler.java:168)
      at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:265)
      at org.apache.jasper.compiler.Compiler.compile(Compiler.java:352)
      at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:474)
      at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:184)
      at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
      at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
      at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
      at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:509)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
      at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
      at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
      at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:261)
      at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:360)
      at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:632)
      at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:590)
      at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:707)
      at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530)
      at java.lang.Thread.run(Thread.java:536)

        • 1. Re: Compilation problem
          Pascal Paradis-Théberge Newbie

          It turns out that the exception happens no matter which value I give to the DeleteWorkDirs attribute.

          I can't believe I'm the only one seeing this. Can anybody help me understand what's going on? Everything works fine and at some point it will start to happen consistently every time a jsp is compiled. Everything seems to work fine with jetty though.

          Thanks

          Pascal