joal stopped working after refreshing to the latest nightly jogl 2 build

After having refreshed the Jogl2.0 library from 07.09 to 07.21, the joal throws this:

Exception in thread “main” java.lang.NoSuchMethodError: com.sun.gluegen.runtime.BufferFactory.isDirect(Ljava/nio/Buffer;)Z
at net.java.games.joal.impl.ALCImpl.alcCreateContext(ALCImpl.java:129)

Any help is much appreciated …