Additional method to RTPManager

Question

Since RTPManager is an abstract class, I got the source code and added 1 more abstract method:
abstract public RTPConnector getRTPConnector ();
Since RTPSessionMgr is the actual implementation of RTPManager, but I don't have source code. I decompile it from jmf.jar, patched it up, then add:
public RTPConnector getRTPConnector () { return rtpConnector; }
All compiled just fine. I unjar jmf.jar and replace RTPManager.class and RTPSessionMgr.class, and jar it back to jmf.jar. However when I call rtpMgr.getRTPConnector(), I get a method not found exception like the old RTPSessionMgr is till in jmf.jar. I put on debug and sure enough, it's the good old RTPSessionMgr. Where do you think it comes from?

Answer 1

Check your classpath settings to make sure that your new jar file is listed earlier than the standard JMF jar files
you can also check which files/classes are loaded by running your app with the -verbose option
java -verbose -jar myJarFile.jar