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JUnit giving null pointer exception but temp variable fixes exception

 
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The relevant code is:


All variables used have been initialized; that's not the problem.
This test gives me a null pointer exception at the first verify line:


But this test works:


Why does the second test work?
 
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Looks like you already got an answer on StackOverflow. Cross posting is fine although we do recommend you link between the posts so people know when it has been answered.
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