Coderanch | Brandon Choate | 8 years ago
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  1. 0

    Need to make a lock. Having trouble getting it to open.

    Coderanch | 8 years ago | Brandon Choate

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at CombinationLock.unlock()
    2. Unknown
      1. CombinationLock.unlock(
      2. CombinationLockTest.main(
      2 frames