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java.lang.NullPointerException: just a test	at undefined.SnippetRunner47882.runSnippet(SnippetRunner47882.java:8)	at undefined.SnippetRunner47882.main(SnippetRunner47882.java:18)	at java.lang.reflect.Method.invoke(Native Method)	at undefined.SnippetRunner.compileAndRun(SnippetRunner.java:120)	at undefined.SnippetRunner.runSnippet(SnippetRunner.java:87)	at undefined.SnippetRunner.actionPerformed(SnippetRunner.java:69)	at java.awt.Button.processActionEvent(Unknown Source)	at java.awt.Button.processEvent(Unknown Source)	at java.awt.Component.dispatchEventImpl(Unknown Source)	at java.awt.Component.dispatchEvent(Unknown Source)	at java.awt.EventQueue.dispatchEvent(Unknown Source)	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)	at java.awt.EventDispatchThread.run(Unknown Source)