Please: try-with-resouces Lock support!

[Gernot Neppert]

  Hi all,

this has been discussed here before, but somehow got lost:
Wouldn't it be very handy having a class 
"java.util.concurrent.AutoLockable" that could be used as follows:

try(AutoLockable locked = AutoLockable.locked(lock))
{
// Do something in locked scope
}

It would look something like this:

package java.util.concurrent.locks;

public abstract class AutoLockable implements AutoCloseable {

     public static AutoLockable locked(final Lock lock)
     {
         lock.lock();
         return new AutoLockable() {

             @Override
             public void close() {
                 lock.unlock();
             }
         };
     }

     public abstract void close();
}