Can I synchronize a null object?

[Nehal Vaidya]

Was asked this question in an interview. Never though about synchronizing a null object till I was asked. :-)

[Jim Yingst]

Please take a moment and read our user name policy, and modify your display name accordingly. Thanks.
As for your question, it's easy to test...

    Object obj = null;
    synchronized (obj) {
      System.out.println("Synchronized on null");
    }

[gautam shah]

Originally posted by Nehal:
Was asked this question in an interview. Never though about synchronizing a null object till I was asked. :-)

101%
even u can synchronized on null literal.

[Rob Ross]

What does 101% mean?
When I do this, I get a null pointer exception. I am relieved as well, as that was my understanding of what would happen.

[gautam shah]

Originally posted by Rob Ross:
What does 101% mean?
When I do this, I get a null pointer exception. I am relieved as well, as that was my understanding of what would happen.

200%