I Think this was stated before but anyway here goes again. The Cliente.class is derived from java.lang.Object and every object has a Monitor. The Monitor for an object "this" can only be accessed by a synchronized methed(s) of the object , which is this case is Cliente.class in recibirPeticion() and enviarPeticion(). By using "Thread.currentThread().wait()/notifyAll()" in this code, the monitor being asked for is the Monitor for the class "java.lang.Thread" not the Cliente.class. Simply remove "Thread.currentThread()." from the invocations of wait() and notifyAll() and the exception should go away. Cheers Chris Juergen Kreileder wrote: > >>>>> Mario Camou writes: > > Mario> Carlos, > Mario> Your problem is with > Mario> Thread.currentThread().wait()/notifyAll(). Since your > Mario> method is synchronized, you own the monitor for "this", not > > No. Since the the methods are 'synchronized' and 'static', he > owns the monitor for 'Cliente.class' > > Juergen > > -- > Juergen Kreileder, Universitaet Dortmund, Lehrstuhl Informatik V > Baroper Strasse 301, D-44221 Dortmund, Germany > Phone: ++49 231/755-5806, Fax: ++49 231/755-5802
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