java.lang.IllegalStateException

ExtensionA.o was null upon access!

Solutions on the web4138

  • ExtensionA.o was null upon access!
  • via GitHub by ferenczAndras
    , 7 months ago
    Database helper was null.
  • via Google Groups by OcpSoft Support Forums, 2 months ago
    FacesContext argument was null.
  • Stack trace

    • java.lang.IllegalStateException: ExtensionA.o was null upon access! at demonstration.Superclass.validateNotNull(Superclass.java:15) at demonstration.Main.main(Main.java:10)

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