Are you using any of Resin's built-in XSL features in your code? The errors
you're seeing are unusual. Restarting JRun shouldn't affect whether your page
throws an error or not.
An important difference between JRun and Resin is that Resin will dynamically
reload JavaBeans. Since you've mentioned Resin a couple times, I'm led to
believe there's something vendor-specific that's hanging you up. Again, nothing
beats some simple test cases to prove the problem and let other people look at
it.
Scott
> -----Original Message-----
> From: Amy Wan [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, August 29, 2000 7:31 PM
> To: '[EMAIL PROTECTED]'
> Subject: RE: Strange! 500 Internal Server Error
>
>
> Hi
>
> I am not sure if it is a requirement to restart JRUN Default server after I
> make changes to any JSP page.
>
> I found that after I restart JRun A FEW TIMES, the 500 Internal Error gone
> and my JSP pages work fine.
>
> The other funny thing is if I access a JSP page which I have never accessed
> before, I will get
> EXCEPTION 1 (See below) once and EXCEPTION 2 when I reload the page.
> Then when I restarted JRun Default Server, the page works again.
>
> Therefore, I concluded that it is not my JSP page error.
>
> The third thing is I have this line in my JSP page
> response.setIntHeader("Expires", -1);
> I got Exception 3 (see below)
> The same line works in Resin1.1.3
>
>
> EXCEPTION 1
> [java.lang.NullPointerException]
> java.lang.NullPointerException
> at
> com.jclark.xsl.om.NameTableImpl.createName(NameTableImpl.java(Compiled
> Code))
> at
> com.jclark.xsl.om.NameTableImpl.createName(NameTableImpl.java(Compiled
> Code))
> at
> com.jclark.xsl.om.NameTableImpl$NamespacePrefixMapImpl.expandAttributeName(N
> ameTableImpl.java(Compiled Code))
> at com.jclark.xsl.expr.ExprParser.expandName(ExprParser.java)
> at com.jclark.xsl.expr.ExprParser.parseNodeTest(ExprParser.java)
> at com.jclark.xsl.expr.ExprParser.parseStep(ExprParser.java)
> at
> com.jclark.xsl.expr.ExprParser.parseRelativeLocationPath(ExprParser.java)
> at
> com.jclark.xsl.expr.ExprParser.parseRelativeLocationPath(ExprParser.java)
> at com.jclark.xsl.expr.ExprParser.parsePathExpr(ExprParser.java)
> at com.jclark.xsl.expr.ExprParser.parseUnionExpr(ExprParser.java)
> at com.jclark.xsl.expr.ExprParser.parseUnaryExpr(ExprParser.java)
> at
> com.jclark.xsl.expr.ExprParser.parseMultiplicativeExpr(ExprParser.java)
> at com.jclark.xsl.expr.ExprParser.parseAdditiveExpr(ExprParser.java)
> at
> com.jclark.xsl.expr.ExprParser.parseRelationalExpr(ExprParser.java)
> at com.jclark.xsl.expr.ExprParser.parseEqualityExpr(ExprParser.java)
> at com.jclark.xsl.expr.ExprParser.parseAndExpr(ExprParser.java)
> at com.jclark.xsl.expr.ExprParser.parseOrExpr(ExprParser.java)
> at com.jclark.xsl.expr.ExprParser.parseExpr(ExprParser.java)
> at
> com.jclark.xsl.expr.ExprParser.parseConvertibleExpr(ExprParser.java)
> at com.jclark.xsl.expr.ExprParser.parseNodeSetExpr(ExprParser.java)
> at com.jclark.xsl.tr.SheetImpl$ForEachParser.parse(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl.parseActions(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl.parseActions(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl$TemplateParser.parse(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl.parseTopLevel(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl$IncludeParser.parse(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl$ImportParser.parse(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl.parseTopLevel(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl$IncludeParser.parse(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl$ImportParser.parse(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl.parseTopLevel(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl$IncludeParser.parse(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl$ImportParser.parse(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl.parseTopLevel(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl.parseSheet(SheetImpl.java)
> at com.jclark.xsl.tr.SheetImpl.<init>(SheetImpl.java)
> at com.jclark.xsl.tr.EngineImpl.createSheet(EngineImpl.java)
> at
> com.jclark.xsl.sax.XSLProcessorImpl.loadStylesheet(XSLProcessorImpl.java)
> at allaire.jrun.jsp.XT.<init>(XT.java:49)
> at
> allaire.jrun.jsp.JSPServlet.getLanguageProcessor(JSPServlet.java:476)
> at allaire.jrun.jsp.JSPServlet.processPage(JSPServlet.java:416)
> at allaire.jrun.jsp.JSPServlet.createServlet(JSPServlet.java:392)
> at allaire.jrun.jsp.JSPServlet.loadPage(JSPServlet.java:201)
> at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java:168)
> at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
> at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
> at
> allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.jav
> a:88)
> at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1131)
> at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:330)
> at allaire.jrun.jrpp.ProxyEndpoint.run(ProxyEndpoint.java:354)
> at allaire.jrun.ThreadPool.run(ThreadPool.java(Compiled Code))
> at allaire.jrun.WorkerThread.run(WorkerThread.java:74)
>
> EXCEPTION 2
>
> null
> java.lang.NullPointerException
> at
> com.jclark.xsl.om.NameTableImpl.createName(NameTableImpl.java(Compiled
> Code))
> at
> com.jclark.xsl.om.NameTableImpl.createName(NameTableImpl.java(Compiled
> Code))
> at com.jclark.xsl.tr.EngineImpl.<init>(EngineImpl.java)
> at
> com.jclark.xsl.sax.XSLProcessorImpl.loadStylesheet(XSLProcessorImpl.java)
> at allaire.jrun.jsp.XT.<init>(XT.java:49)
> at
> allaire.jrun.jsp.JSPServlet.getLanguageProcessor(JSPServlet.java:476)
> at allaire.jrun.jsp.JSPServlet.processPage(JSPServlet.java:416)
> at allaire.jrun.jsp.JSPServlet.createServlet(JSPServlet.java:392)
> at allaire.jrun.jsp.JSPServlet.loadPage(JSPServlet.java:201)
> at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java:168)
> at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
> at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
> at
> allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.jav
> a:88)
> at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1131)
> at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:330)
> at allaire.jrun.jrpp.ProxyEndpoint.run(ProxyEndpoint.java:354)
> at allaire.jrun.ThreadPool.run(ThreadPool.java(Compiled Code))
> at allaire.jrun.WorkerThread.run(WorkerThread.java:74)
>
> EXCEPTION 3
> -1
> java.lang.ArrayIndexOutOfBoundsException: -1
> at
> allaire.jrun.util.SimpleNumberFormat.formatToBuf(SimpleNumberFormat.java:43)
> at
> allaire.jrun.util.SimpleNumberFormat.format(SimpleNumberFormat.java:9)
> at
> allaire.jrun.ServletConnection.formatIntegerHeader(ServletConnection.java:35
> 3)
> at
> allaire.jrun.ServletConnection.setIntHeader(ServletConnection.java:358)
> at
> jrun__enter_process2ejsp12._jspService(jrun__enter_process2ejsp12.java:82)
> at allaire.jrun.jsp.HttpJSPServlet.service(HttpJSPServlet.java:40)
> at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
> at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
> at
> allaire.jrun.servlet.JRunNamedDispatcher.forward(JRunNamedDispatcher.java:34
> )
> at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java:174)
> at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
> at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
> at
> allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.jav
> a:88)
> at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1131)
> at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:330)
> at allaire.jrun.jrpp.ProxyEndpoint.run(ProxyEndpoint.java:354)
> at allaire.jrun.ThreadPool.run(ThreadPool.java(Compiled Code))
> at allaire.jrun.WorkerThread.run(WorkerThread.java:74)
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