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    Thrown when an application is trying to use or access an object whose reference equals to null. You are probably trying to use a reference that points to no location in memory as though it were referencing an object.

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via Oracle Community by 9ec3f616-fce4-4a45-891c-de33eddc924e, 1 year ago
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This exception has no message.
java.lang.NullPointerException: 	at java.util.Hashtable.put(	at java.util.Properties.setProperty(	at	at oracle.dbtools.raptor.onsd.connection.ConnectionCreator.createConnection(	at oracle.dbtools.raptor.onsd.connection.NSConnections$C.getConnection(	at oracle.dbtools.raptor.onsd.connection.NSConnections.getConnection(	at oracle.dbtools.raptor.onsd.navigator.OnsdConnection.openConnectionImpl(	at oracle.dbtools.raptor.onsd.navigator.OnsdConnection.openConnectionImpl(	at oracle.dbtools.raptor.navigator.db.BaseConnectionNode.getConnection(	at oracle.dbtools.raptor.onsd.navigator.ConnectionTreeNode$LoadTask.doWork(	at oracle.dbtools.raptor.onsd.navigator.ConnectionTreeNode$LoadTask.doWork(	at	at	at oracle.dbtools.raptor.backgroundTask.RaptorTaskManager$	at java.util.concurrent.Executors$	at	at java.util.concurrent.ThreadPoolExecutor.runWorker(	at java.util.concurrent.ThreadPoolExecutor$	at