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TomCat Problem with large .jsp pages

  • 1.  TomCat Problem with large .jsp pages

    Posted Wed January 23, 2002 02:49 PM

    X-Application Version: 3.1.1
    Tamino Version : 3.1.1
    Platform : NT
    WebContainer : Tomcat 3.3a
    JDK Version : 1.3.1


    My page contains quite a few jsp tags and is retrieving a fare bit of data.

    This is the error message that is displayed:
    Error: 500
    Location: /TestPlan/view.jsp
    Internal Servlet Error:

    java.lang.VerifyError: (class: view_1, method: _jspService signature: (Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V) Illegal target of jump or branch
    at java.lang.Class.newInstance0(Native Method)
    at java.lang.Class.newInstance(Class.java:237)
    at org.apache.tomcat.facade.ServletHandler.getServlet(Unknown Source)
    at org.apache.tomcat.facade.ServletHandler.preInit(Unknown Source)
    at org.apache.tomcat.facade.ServletHandler.init(Unknown Source)
    at org.apache.tomcat.facade.ServletHandler.service(Unknown Source)
    at org.apache.tomcat.core.ContextManager.internalService(Unknown Source)
    at org.apache.tomcat.core.ContextManager.service(Unknown Source)
    at org.apache.tomcat.modules.server.Http10Interceptor.processConnection(Unknown Source)
    at org.apache.tomcat.util.net.TcpWorkerThread.runIt(Unknown Source)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:484)


    #webMethods
    #API-Management
    #Tamino


  • 2.  RE: TomCat Problem with large .jsp pages

    Posted Wed January 23, 2002 03:11 PM

    It looks like a javac problem. JDK´s javac compiler seems to produce illegal byte code that doesn´t pass the verifyer.

    I see two possible solutions:

    1. Outsource static HTML data in the generated java code
    Tomcat generates java code to write the static html parts of your jsp page. For large jsp pages with a lot of static HTML tomcat can be forced to put this in an extra file. This reduces the size of the generated service method.

    Add in /conf/server.xml:

    quote:
    <JspInterceptor keepGenerated=“true”
    largeFile=“true”
    useJspServlet=“false”
    />

    2. Switch tomcat to IBM´s jikes Compiler
    You just need to download and unpack jikes from http://ibm.com/developerworks/oss/jikes/ and add it to your system environment path.

    Then add in /conf/server.xml:

    quote:
    <JspInterceptor keepGenerated=“true”
    javaCompiler=“jikes”
    largeFile=“false”
    useJspServlet=“false”
    />

    Regards, Harald


    #webMethods
    #Tamino
    #API-Management


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