java.lang.NullPointerException

Oracle Community | 843797 | 2 decades ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at java.util.Hashtable.get()
  2. Java RT
    Hashtable.get
    1. java.util.Hashtable.get(Hashtable.java:320)
    1 frame
  3. Unknown
    MainApp.main
    1. Subsets.permutations(Subsets.java:124)
    2. PlayScopa.computerTurn(PlayScopa.java:273)
    3. PlayScopa.scopaPlay(PlayScopa.java:133)
    4. PlayScopa.scopaStart(PlayScopa.java:89)
    5. MainApp.main(MainApp.java:29)
    5 frames