Porque o monitor não dá deadlock

[soaresinfo]

Eu tenho o seguinte codigo:

synchronized(time)
{
   time.wait();
}

e este em outro metodo:

synchronized(time)
{
   time.notify();
}

se eu chamei o wait no bloco synchronized, porque eu consigo chamar o seu notify se a thread parou de executar ainda dentro do synchronized??

[kuchma]

Chute: sera que eh por que quando a thread faz wait() ela larga os locks?

Marcio Kuchma

[louds]

Direto do javadoc da classe:

public final void wait()
throws InterruptedException

Causes current thread to wait until another thread invokes the notify() method or the notifyAll() method for this object. In other words, this method behaves exactly as if it simply performs the call wait(0).

The current thread must own this object’s monitor. The thread releases ownership of this monitor and waits until another thread notifies threads waiting on this object’s monitor to wake up either through a call to the notify method or the notifyAll method. The thread then waits until it can re-obtain ownership of the monitor and resumes execution.

This method should only be called by a thread that is the owner of this object's monitor. See the notify method for a description of the ways in which a thread can become the owner of a monitor.

Porque é assim, eu não sei.