Hello,
I've been battling this problem for a couple days now. I've googled it, and
have seen it posted other places, but with no solution (that I've found). I
also can't find anything in bugzilla (does not mean it's not there, just means
I can't find it). If anyone has experienced this and knows of a
fix/solution/workaround, I would greatly appreciate it.
The problem appears when precompiling a jsp that uses the struts-el tags using
Jasper2. I've attached the stack trace below. I walked through the struts and
struts-el code and noticed that basically, what's happening, is a class uses
ClassLoader to attempt to load a class in it's own package and jar file. This
throws a java.lang.ClassNotFoundException, which of course makes no sense,
since they're at the same location.
The error occurs only during precompilation, when the jsp code is being
translated into java code, before any actual compilation.
The reason I think this is an issue with Jasper/Tomcat is that in a previous
project, I had the same problem using Weblogic, and gave up on precompilation,
which was fine then. BEA has come out with a fix in SP4 (which makes me think
it's a compiler problem, not a struts-el problem). However, my current project
uses JBoss, and precompilation is an absolute must.
Thanks in advance!
Setup:
JBoss 3.0.1
Tomcat 4.1.12
Stack Trace:
(util.MessageResourcesFactory 153 ) MessageResourcesFactory.createFactory
java.lang.ClassNotFoundException:
org.apache.struts.util.PropertyMessageResourcesFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at
org.apache.struts.util.RequestUtils.applicationClass(RequestUtils.java:117)
at
org.apache.struts.util.MessageResourcesFactory.createFactory(MessageResourcesFactory.java:148)
at
org.apache.struts.util.MessageResources.getMessageResources(MessageResources.java:493)
at org.apache.struts.taglib.html.FormTag.<clinit>(FormTag.java:93)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at
org.apache.strutsel.taglib.html.ELFormTagBeanInfo.class$(ELFormTagBeanInfo.java:32)
at
org.apache.strutsel.taglib.html.ELFormTagBeanInfo.getPropertyDescriptors(ELFormTagBeanInfo.java:39)
at java.beans.Introspector.getTargetPropertyInfo(Introspector.java:471)
at java.beans.Introspector.getBeanInfo(Introspector.java:381)
at java.beans.Introspector.getBeanInfo(Introspector.java:153)
at
org.apache.jasper.compiler.Generator$TagHandlerInfo.<init>(Generator.java:1874)
at
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1073)
at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:707)
at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1028)
at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:1070)
at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:1076)
at org.apache.jasper.compiler.Node$Root.accept(Node.java:232)
at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1028)
at org.apache.jasper.compiler.Generator.generate(Generator.java:1845)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:234)
at org.apache.jasper.JspC.processFile(JspC.java:561)
at org.apache.jasper.JspC.execute(JspC.java:788)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.tools.ant.TaskAdapter.execute(TaskAdapter.java:147)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:166)
at org.apache.tools.ant.Task.perform(Task.java:319)
at org.apache.tools.ant.Target.execute(Target.java:309)
at org.apache.tools.ant.Target.performTasks(Target.java:336)
at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:371)
at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:143)
at org.apache.tools.ant.Task.perform(Task.java:319)
at org.apache.tools.ant.Target.execute(Target.java:309)
at org.apache.tools.ant.Target.performTasks(Target.java:336)
at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:371)
at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:143)
at org.apache.tools.ant.Task.perform(Task.java:319)
at org.apache.tools.ant.Target.execute(Target.java:309)
at org.apache.tools.ant.Target.performTasks(Target.java:336)
at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:371)
at org.apache.tools.ant.Task.perform(Task.java:319)
at org.apache.tools.ant.Target.execute(Target.java:309)
at org.apache.tools.ant.Target.performTasks(Target.java:336)
at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:371)
at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:143)
at org.apache.tools.ant.Task.perform(Task.java:319)
at org.apache.tools.ant.Target.execute(Target.java:309)
at org.apache.tools.ant.Target.performTasks(Target.java:336)
at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
at org.apache.tools.ant.Project.executeTargets(Project.java:1250)
at org.apache.tools.ant.Main.runBuild(Main.java:610)
at org.apache.tools.ant.Main.start(Main.java:196)
at org.apache.tools.ant.Main.main(Main.java:235)
Error in class org.apache.jasper.JspC
Jon DeJong
Software Engineer II
Harris Technical Services Corporation
[EMAIL PROTECTED]
Cell: 402.871.7362
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