java.lang.NullPointerException: name can't be null

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  • NullPointerException when get serial port.
    via by hansenfan,
    • java.lang.NullPointerException: name can't be null at java.io.FilePermission.init(FilePermission.java:171) at java.io.FilePermission.<init>(FilePermission.java:264) at java.lang.SecurityManager.checkRead(SecurityManager.java:863) at java.io.RandomAccessFile.<init>(RandomAccessFile.java:195) at java.io.RandomAccessFile.<init>(RandomAccessFile.java:94) at Elvj.EventLogViewerAppFrame.LoadAppResourceFile(EventLogViewerAppFrame.java:140) at Elvj.EventLogViewerAppFrame.<init>(EventLogViewerAppFrame.java:111) at Elvj.EventLogViewerApp.run(EventLogViewerApp.java:63) at Elvj.EventLogViewerApp.init(EventLogViewerApp.java:54) at sun.applet.AppletPanel.run(AppletPanel.java:353) at java.lang.Thread.run(Thread.java:534)

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