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java.lang.IncompatibleClassChangeError: Implementing class	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:621)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)	at java.net.URLClassLoader.access$000(URLClassLoader.java:56)	at java.net.URLClassLoader$1.run(URLClassLoader.java:195)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)	at java.lang.ClassLoader.loadClass(ClassLoader.java:307)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)	at java.lang.ClassLoader.loadClass(ClassLoader.java:252)	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:621)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)	at java.net.URLClassLoader.access$000(URLClassLoader.java:56)	at java.net.URLClassLoader$1.run(URLClassLoader.java:195)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)	at java.lang.ClassLoader.loadClass(ClassLoader.java:307)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)	at java.lang.ClassLoader.loadClass(ClassLoader.java:252)	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)	at com.creamtec.ajaxswing.gui.VersionHelper.init(VersionHelper.java:80)	at com.creamtec.core.ClassPatcher.main(ClassPatcher.java:22)