Android draw9patch throws NoClassDefFoundError

Question

I upgraded to Android SDK Tools r8 today and I can't seem to run the draw9patch tool. I'm getting the following error:

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/jdesktop/swingworker/SwingWorker at com.android.draw9patch.Application$1.run(Application.java:48) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:633) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) Caused by: java.lang.ClassNotFoundException: org.jdesktop.swingworker.SwingWorker at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at sun.misc.Launcher$ExtClassLoader.findClass(Launcher.java:229) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) ... 9 more 

I'm running snow leopard and have jre (or jdk?) 1.6.

Any ideas how to get this working? Thanks!

Answer 1

I have found a solution(Ubuntu 10.10, java-6-sun). Copy swing-worker.jar into /path_to_android_sdk/tools/lib. You can find swing-worker-1.1.jar in the same directory in SDK r7 or download it from here.