java.lang.UnsatisfiedLinkError: wait
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:426)
        at java.util.TimerThread.mainLoop(Timer.java:403)
        at java.util.TimerThread.run(Timer.java:382)

In this example Object has been redefined.

This occurs when a class that has native methods gets redefined.
After the redefinition, the native methods can no longer be called.