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, 2 years ago
java.lang.NullPointerException: 	at org.rosuda.deducer.JGRConnector.idleEval(JGRConnector.java:39)	at org.rosuda.deducer.Deducer.idleEval(Deducer.java:611)	at org.rosuda.deducer.data.DataViewerController.refreshData(DataViewerController.java:212)	at org.rosuda.deducer.data.DataRefresher.run(DataViewerController.java:252)	at java.lang.Thread.run(Unknown Source)