Help Needed on a similar but not same class loader problem

Question

Hi,
Please help...
There is a ClassLoader called MyLoader that overrides default findClass() method to decrypt already encrypted class files available in a separate jar file.
MyClass also contains a public static method launchMe() method that starts off with a call similar to loadClass("ApplicationMainClass");
The MyLoader class is also encrypted
I modified the default launcher (c) code to:
First find the encrypted MyLoader file then decrypt it and create a byte array.
The byte array, along with the system class loader and other required arguments, is passed to DefineClass native method (defined in jvm.dll)
Note: The system class loader class has been instantiated using static method ClassLoader.getSystemClassLoader() through Java's invocation API.
The DefineClass succeeds and I'm able to instantiate MyLoader and later call launchMe() to start application.
Now i come to the problem:
I'm not able to use any class other that those in rt.jar (i.e.standard classes) in MyLoader class. I end up with a runtime error ClassDefNotFoundError while trying to load any third party jar.
The classes i need are present in class path and also in the local jre's ext that i use to launch my app.
Although i can avoid using third party jar in MyLoader but if there is any way...
Piyush

Answer 1

make sure that third party jar resides in your library.....
or else put rt.jar and external jars under same folder
this is matter of path.... no else than this.......
cheers
Rajesh42