JspC exception

[Jagadeesha T <ja...@yahoo.com>]

Hi,
    JspC error while doing PreCompilation,
    I 'am using ant 1.6.2 and tomcat 5. When I call jspc from ant it is thworing invaid  cast exception.  In JspRunTimeContext class. It is getting the current thread classloader  and casting to URL classloader..
 
parentClassLoader = (URLClassLoader)Thread.currentThread().getContextClassLoader();
This is because Thread.currentThread().getContextClassLoader() is returning AntClassLoader.
which is incompatible with URLClassLoader. Hence thrwoing ClassCastException.
 
The detail exception is, Please don't consider the line number in the below stack Trace.
The code thrwoing the exception is above given in bold font of org.apache.jasper.compiler.JspRuntimeContext class.
 
 
    [java] java.lang.ClassCastException
    [java]     at org.apache.jasper.compiler.JspRuntimeContext.<init>(JspRuntimeContext.java:46)
    [java]     at org.apache.jasper.JspC.initServletContext(JspC.java:866)
    [java]     at org.apache.jasper.JspC.execute(JspC.java:735)
    [java]     at org.apache.jasper.JspC.main(JspC.java:71)
    [java]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [java]     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    [java]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    [java]     at java.lang.reflect.Method.invoke(Method.java:324)
    [java]     at org.apache.tools.ant.taskdefs.ExecuteJava.run(ExecuteJava.java:193)
    [java]     at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:130)
    [java]     at org.apache.tools.ant.taskdefs.Java.run(Java.java:705)
    [java]     at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:177)
    [java]     at org.apache.tools.ant.taskdefs.Java.execute(Java.java:83)
    [java]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
    [java]     at org.apache.tools.ant.Task.perform(Task.java:364)
    [java]     at org.apache.tools.ant.Target.execute(Target.java:341)
    [java]     at org.apache.tools.ant.Target.performTasks(Target.java:369)
    [java]     at org.apache.tools.ant.Project.executeTarget(Project.java:1214)
    [java]     at org.apache.tools.ant.Project.executeTargets(Project.java:1062)
    [java]     at org.apache.tools.ant.Main.runBuild(Main.java:673)
    [java]     at org.apache.tools.ant.Main.startAnt(Main.java:188)
    [java]     at org.apache.tools.ant.launch.Launcher.run(Launcher.java:196)
    [java]     at org.apache.tools.ant.launch.Launcher.main(Launcher.java:55)
 
 
I 'am stuck up in this, This is a class loader issue. It would be a great help if anybody has a solution for this. After this exception, there is a code to set current thread class loader to URL classLoader in JspC.java.
 
Regards,
Jagga
 
 
 
 

		
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