Eclemma says 1 of 4 branches not covered, but which branch is it?

Question

Is there a simple way to tell which branch I am missing? I.e. I have some code like this:

if (x || y) {     // do stuff } 

In the coverage highlighting there is a yellow dot in Eclipse that says:

1 of 4 branches missed

but I would like to know which branch is missing.

Answer 1

What can x and y be?

• true || true is true (Not covered because of JVM optimization: if the first condition is true, the second won't be evaluated due to short circuit evaluation)
• false || true is true
• true || false is true
• false || false is false