About Question com.enthuware.ets.scjp.v6.2.396 :

[TwistedLizard]

If a synchronized method throws an exception in its execution, any locks acquired by the method are released automatically.

Am I correct in supposing that this only applies to a situation where the exception is thrown out of the method?

If an exception is thrown during a method's execution, but it's caught within that method, would any acquired locks would still be held?

For example

Code: Select all

class SynchronizedMethodTest{
  synchronized void m(){
    try{
      //do dangerous stuff
      throw new Exception();
    }catch(Exception e){}
    //method still has lock on class instance at this point? [A]
  }
  public static void main(String[] args){
    new SynchronizedMethodTest().m();
  }
}

at [A], is it correct that the method's lock on the class instance is still held?

[admin]

Yes, that is correct. The exception has to get out of the method.

[TwistedLizard]

Thanks. That makes sense.