Causes the current thread to wait until another thread invokes the java.lang.Object.notify() method or the java.lang.Object.notifyAll() method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.

This method is similar to the wait method of one argument, but it allows finer control over the amount of time to wait for a notification before giving up. The amount of real time, measured in nanoseconds, is given by:

 1000000*timeout+nanos

In all other respects, this method does the same thing as the method wait(long) of one argument. In particular, wait(0, 0) means the same thing as wait(0).

The current thread must own this object's monitor. The thread releases ownership of this monitor and waits until either of the following two conditions has occurred:

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 timeout period, specified by timeout milliseconds plus nanos nanoseconds arguments, has elapsed.

The thread then waits until it can re-obtain ownership of the monitor and resumes execution.

As in the one argument version, interrupts and spurious wakeups are possible, and this method should always be used in a loop:

     synchronized (obj) {
         while (<condition does not hold>)
             obj.wait(timeout, nanos);
         ... // Perform action appropriate to condition
     }

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.

Parameters:

timeout the maximum time to wait in milliseconds.

nanos additional time, in nanoseconds range 0-999999.

Exceptions:

IllegalArgumentException     if the value of timeout is negative or the value of nanos is not in the range 0-999999.

IllegalMonitorStateException     if the current thread is not the owner of this object's monitor.

InterruptedException     if any thread interrupted the current thread before or while the current thread was waiting for a notification. The interrupted status of the current thread is cleared when this exception is thrown.

`timeout`		the maximum time to wait in milliseconds.
`nanos`		additional time, in nanoseconds range 0-999999.

`IllegalArgumentException`		if the value of timeout is negative or the value of nanos is not in the range 0-999999.
`IllegalMonitorStateException`		if the current thread is not the owner of this object's monitor.
`InterruptedException`		if any thread interrupted the current thread before or while the current thread was waiting for a notification. The interrupted status of the current thread is cleared when this exception is thrown.