java.lang.NullPointerException

Oracle Community | 807587 | 1 decade ago
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  1. 0

    problems with ActionListener

    Oracle Community | 1 decade ago | 807587
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at ClassView.<init>()
    2. Unknown
      ClassView.<init>
      1. ClassView.<init>(ClassView.java:19)
      1 frame