ClassLoader "argument type mismatch" problem

Question

I've got a problem I was hoping someone would be able to help me out with, or at least explain why I'm getting the problem.
Here's the scenario:
*I've got an abstract class, BETI public abstract class BETI*I've got another class, TMPC, which extends BETI and implements others.
public class TMPC extends BETI implements .....*I've got a third class ABT, which has a method that looks like:
public void addListener(BETI _listener);*In a fourth class, I've been able to successfully load ABT, but I'm having problems invoking the addListener method.
Here's the segment:
Class customLoggerClass = classLoader.loadClass("blah.ABT");
Object customLogger = customLoggerClass.newInstance();
TMPC gui = new TMPC();
Object[] oneArgument = new Object[1];
Class beti = classLoader.loadClass("blah.BETI");
Class[] addBuildListenerParameters = {beti};
Method addBuildListenerMethod = customLoggerClass.getMethod("addBuildListener",addBuildListenerParameters);
oneArgument[0] = gui;
addBuildListenerMethod.invoke(customLogger,oneArgument); //here is where the argument type mismatch happensAny idea on why I'm getting this? Obviously I'm overlooking something simple, but....
Thanks in advance-

Answer 1

Presuming I did it right...
Using
c0 = default loader
c1 = your loader
>
Object customLogger =
customLoggerClass.newInstance();
TMPC gui = new TMPC();This loads c0.BETI and c0.TMPC
Object[] oneArgument = new Object[1];
Class beti = classLoader.loadClass("blah.BETI");I bet this loads c1.BETI
Class[] addBuildListenerParameters = {beti};
Method addBuildListenerMethod =
customLoggerClass.getMethod("addBuildListener",addBuild
istenerParameters);
oneArgument[0] = gui;
addBuildListenerMethod.invoke(customLogger,oneArgument)
//here is where the argument type mismatch happensSo here the signature is
addBuildListener(c1.BETI)
and you are calling it with
addBuildListener(c0.TPMC)
And that can only resolve to c0.BETI which doesn't match.