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Posted to dev@tomcat.apache.org by bu...@apache.org on 2005/02/02 15:44:32 UTC
DO NOT REPLY [Bug 33358] New: -
jasper2 bug because classloader-problems
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http://issues.apache.org/bugzilla/show_bug.cgi?id=33358
Summary: jasper2 bug because classloader-problems
Product: Tomcat 5
Version: 5.0.30
Platform: Other
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Jasper
AssignedTo: tomcat-dev@jakarta.apache.org
ReportedBy: marco@morca.de
hi there,
i think the patch of bugreport
http://issues.apache.org/bugzilla/show_bug.cgi?id=32330 is not correct.
jspc get an error if i compile jsp's with struts-el tags like
<html-el:option>.
following stacktrace is coming:
[jasper2] SCHWERWIEGEND: MessageResourcesFactory.createFactory
[jasper2] java.lang.ClassNotFoundException:
org.apache.struts.util.PropertyMessageResourcesFactory
[jasper2] at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
[jasper2] at java.security.AccessController.doPrivileged(Native Method)
[jasper2] at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
[jasper2] at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
[jasper2] at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
[jasper2] at
org.apache.struts.util.RequestUtils.applicationClass(RequestUtils.java:117)
[jasper2] at
org.apache.struts.util.MessageResourcesFactory.createFactory(MessageResourcesFactory.java:148)
[jasper2] at
org.apache.struts.util.MessageResources.getMessageResources(MessageResources.java:493)
[jasper2] at
org.apache.struts.taglib.html.BaseHandlerTag.<clinit>(BaseHandlerTag.java:64)
[jasper2] at java.lang.Class.forName0(Native Method)
[jasper2] at java.lang.Class.forName(Class.java:141)
[jasper2] at
org.apache.strutsel.taglib.html.ELLinkTagBeanInfo.class$(ELLinkTagBeanInfo.java:46)
[jasper2] at
org.apache.strutsel.taglib.html.ELLinkTagBeanInfo.getPropertyDescriptors(ELLinkTagBeanInfo.java:46)
[jasper2] at
java.beans.Introspector.getTargetPropertyInfo(Introspector.java:459)
[jasper2] at java.beans.Introspector.getBeanInfo(Introspector.java:372)
[jasper2] at java.beans.Introspector.getBeanInfo(Introspector.java:144)
[jasper2] at
org.apache.jasper.compiler.Generator$TagHandlerInfo.<init>(Generator.java:3684)
[jasper2] at
org.apache.jasper.compiler.Generator$GenerateVisitor.getTagHandlerInfo(Generator.java:2102)
[jasper2] at
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1583)
[jasper2] at
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1441)
[jasper2] at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
[jasper2] at
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
[jasper2] at
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1689)
[jasper2] at
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1441)
[jasper2] at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
[jasper2] at
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
[jasper2] at
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
[jasper2] at org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
[jasper2] at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
[jasper2] at
org.apache.jasper.compiler.Generator.generate(Generator.java:3272)
[jasper2] at
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:244)
[jasper2] at
org.apache.jasper.compiler.Compiler.compile(Compiler.java:470)
[jasper2] at org.apache.jasper.JspC.processFile(JspC.java:805)
[jasper2] at org.apache.jasper.JspC.execute(JspC.java:938)
...
in the source code of Jspc.java the finaly-block in the processFile method for
resetting the classloader is wrong there. because
it resets the classloader after the first file was processed. and any other
jsp's, that uses
the struts-el-tags (for example <html-el:option...) can not be compiled. i
think the finaly-block belongs
to the end of the execute-method with following change:
} finally {
if(originalClassLoader != null) {
Thread.currentThread().setContextClassLoader(originalClassLoader);
loader = null; // set to null!!
}
}
where originalClassLoader is declared as instance variable as:
private ClassLoader originalClassLoader = null;
what's your opinion?
marco
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