Description
java.lang.NullPointerException
at org.apache.uima.tools.cvd.MainFrame.loadAEDescriptor(MainFrame.java:511)
at org.apache.uima.tools.cvd.control.AnnotatorOpenEventHandler.actionPerformed(AnnotatorOpenEventHandler.java:52)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1815)
at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1868)