java.lang.NullPointerException
        at oracle.jdbc.ttc7.TTC7Protocol.describe(TTC7Protocol.java:772)
        at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteDescribe(TTC7Protocol.java:882)
        at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:2599)
        at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2963)
        at oracle.jdbc.driver.OracleStatement.execute(OracleStatement.java:961)
        at org.netbeans.modules.db.sql.execute.SQLExecuteHelper.execute(SQLExecuteHelper.java:121)
        at org.netbeans.modules.db.sql.loader.SQLEditorSupport$SQLExecutor.run(SQLEditorSupport.java:479)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:561)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:986)