Runtime failure in custom tag

Question

          I was curious if you knew what specifically you did to remove the runtime error.
          I am also getting the runtime failure. The try/catch that another discussion thread
          suggested does not catch the error since the exception is thrown prior to the
          doStart and doEnd Tag methods. I know that the exception is thrown immediately
          after the constructor is called for the tag and before the setParent method is
          called.
          Anyway, thank you in advance for any suggestions you might have.
          try { // begin instantiate/release try/catch/finally block... //[ /wattage/wtgMainMenu.jsp;
          Line: 36]
               westerncommon_jsptag_HeaderTag_0 = (western.common.jsptag.HeaderTag)java.beans.Beans.instantiate(getClass().getClassLoader(),
          "western.common.jsptag.HeaderTag"); //[ /wattage/wtgMainMenu.jsp; Line: 36]
          westerncommon_jsptag_HeaderTag_0.setPageContext(pageContext); //[ /wattage/wtgMainMenu.jsp;
          Line: 36]
          westerncommon_jsptag_HeaderTag_0.setParent(null); //[ /wattage/wtgMainMenu.jsp;
          Line: 36]
               westerncommon_jsptag_HeaderTag_0.setNavMenuHREF(weblogic.utils.StringUtils.valueOf("wtgLogout.jsp"));
          //[ /wattage/wtgMainMenu.jsp; Line: 36]
          westerncommon_jsptag_HeaderTag_0.setNavMenu(weblogic.utils.StringUtils.valueOf("Logout"));
          //[ /wattage/wtgMainMenu.jsp; Line: 36]
          westerncommon_jsptag_HeaderTag_0.setTitle(weblogic.utils.StringUtils.valueOf("Main
          Menu")); //[ /wattage/wtgMainMenu.jsp; Line: 36]
          int int0 = westerncommon_jsptag_HeaderTag_0.doStartTag(); //[ /wattage/wtgMainMenu.jsp;
          Line: 36]
               if (_int_0 == BodyTag.EVAL_BODY_TAG) { //[ /wattage/wtgMainMenu.jsp; Line: 36]
                    throw new JspTagException("Since tag class western.common.jsptag.HeaderTag does
          not implements BodyTag, it cannot return BodyTag.EVAL_BODY_TAG"); //[ /wattage/wtgMainMenu.jsp;
          Line: 36]
          } //[ /wattage/wtgMainMenu.jsp; Line: 36]
          /*** sync AT_BEGIN TagExtra Vars here ***/ //[ /wattage/wtgMainMenu.jsp;
          Line: 36]
          if (_int_0 != Tag.SKIP_BODY) { // begin !SKIP_BODY... //[ /wattage/wtgMainMenu.jsp;
          Line: 36]
                    //[ /wattage/wtgMainMenu.jsp; Line: 36]
                    out.print("\r\n");
                         //[ /wattage/wtgMainMenu.jsp; Line: 37]
               } // end !SKIP_BODY //[ /wattage/wtgMainMenu.jsp; Line: 37]
          if (_western_common_jsptag_HeaderTag_0.doEndTag() == Tag.SKIP_PAGE) return;
          //[ /wattage/wtgMainMenu.jsp; Line: 37]
          } catch (java.lang.Exception javalang_Exception_0) { // instantiate/release
          try/catch/finally //[ /wattage/wtgMainMenu.jsp; Line: 37]
               throw new ServletException("runtime failure in custom tag 'HeaderTag'", javalang_Exception_0);
          //[ /wattage/wtgMainMenu.jsp; Line: 37]
          } finally { // instantiate/release try/catch/finally block... //[ /wattage/wtgMainMenu.jsp;
          Line: 37]
               if (_western_common_jsptag_HeaderTag_0 != null) westerncommon_jsptag_HeaderTag_0.release();
          //[ /wattage/wtgMainMenu.jsp; Line: 37]
          } //[ /wattage/wtgMainMenu.jsp; Line: 37]
          ----------CONSOLE OUTPUT-------------
          Getting Page permissions for page: wtgMainMenu.jsp user: 0
          Page Permissions: Insert-1 View-1 Update-1 Delete-1
          HeaderTag -- Constructing
          Thu Apr 05 11:19:00 CDT 2001:<E> <ServletContext-General> exception raised on
          wattage/wtgMainMenu.jsp'
          javax.servlet.ServletException: runtime failure in custom tag 'HeaderTag'
          at jsp_servlet.wattage.wtgmainmenu._jspService(wtgmainmenu.java:398)
          at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
          at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
          pl.java:124)
          at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
          textImpl.java:744)
          at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletCon
          textImpl.java:692)
          at weblogic.servlet.internal.ServletContextManager.invokeServlet(Servlet
          ContextManager.java:251)
          at weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.jav
          a:363)
          at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:263)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          

Answer 1

I just started getting this error after a year in production environment without any problems. Did you every find out what caused this or better yet how to prevent this?
          Dan.