Does finally always get called?

Question

Possible Duplicate:
In Java, does return trump finally?

What does this function return?

public int wasExceptionThrown() {
   try {
     if(1==1)
        throw new RuntimeException();
     return 1;
   } catch(Exception e) {
     return 2;
   } finally {
     return 3;
   }
   return 0;
}

To begin with, that function doesn't compile, because `return 1` is unreachable. — Joel Westberg, Jan 08 '13 at 16:08

score 7 · Accepted Answer · answered Jan 08 '13 at 16:07

7

If you call System.exit(0); then finally blocks are not called as the thread is shutdown immediately. In all other cases finally is called when the block exits (assuming it does)

answered Jan 08 '13 at 16:07

Peter Lawrey

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or if JVM crashes first before executing finally – Lord Nick May 23 '16 at 11:21
@NirmitSrivastava Yes, a signal crash rather than an error thrown. – Peter Lawrey May 24 '16 at 13:19

score 3 · Answer 2 · answered Jan 08 '13 at 16:10

3

Finally called before return.

The only time finally won't be called is if you call System.exit() or if the JVM crashes first.

answered Jan 08 '13 at 16:10

lichengwu

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Does finally always get called?

2 Answers2