Settings change for cache with mysql causes NPE

I made the changes of setting defaultFetchSize = 5000 and UseCursorFetch = true to work around the Connector/J caching issue. Upon attempting to connect, I get the following in the log: ------------------------- Product Information ------------------------ Product: DbVisualizer Pro 9.1.2 Build: #2072 (2013/10/28 18:25) Java VM: Java HotSpot(TM) 64-Bit Server VM Java Version: 1.7.0_45 Java Vendor: Oracle Corporation OS Name: Linux OS Arch: amd64 OS Version: 3.2.0-23-generic ------------------------- Connected Databases ------------------------ --------------------------- Debug Printouts -------------------------- 08:56:52 [DEBUG AWT-EventQueue-0 DbVisualizerGUI.initialize] Init time: 5.018 08:56:53 [DEBUG AWT-EventQueue-0 T.Ą] AutoSaver started. Interval: 30 sec registerDriver: com.mysql.jdbc.Driver@285e6143 08:57:04 [DEBUG ExecutorRunner-pool-1-thread-1 L.ā] Loading class using dynamic ClassLoader: com.mysql.jdbc.Driver 08:57:04 [DEBUG ExecutorRunner-pool-1-thread-1 L.ā] Loading class using dynamic ClassLoader: com.mysql.jdbc.Driver 08:57:04 [DEBUG ExecutorRunner-pool-1-thread-1 G.ĭ] Connecting: prod-new 08:57:04 [DEBUG ExecutorRunner-pool-1-thread-1 L.ā] Loading class using dynamic ClassLoader: com.mysql.jdbc.Driver 08:57:04 [DEBUG ExecutorRunner-pool-1-thread-1 L.ā] Loading class using dynamic ClassLoader: com.mysql.jdbc.Driver 08:57:04 [DEBUG pool-2-thread-1 D.ā] RootConnection: Driver.acceptsURL("jdbc:mysql://10.0.1.202:3306/GHSFeed") 08:57:04 [DEBUG pool-2-thread-1 D.ā] RootConnection: Driver.connect("jdbc:mysql://10.0.1.202:3306/GHSFeed", {autoReconnect=true, user=******, password=*********, interactiveClient=true, useCursorFetch=true, maxReconnects=10, defaultFetchSize=5000, initialTimeout=0}) SQLState(S1000) vendor code(0) java.sql.SQLException: Operation not allowed after ResultSet closed at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1078) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) at com.mysql.jdbc.ResultSetImpl.checkClosed(ResultSetImpl.java:804) at com.mysql.jdbc.ResultSetImpl.realClose(ResultSetImpl.java:7331) at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1522) at com.mysql.jdbc.ConnectionImpl.loadServerVariables(ConnectionImpl.java:4196) at com.mysql.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:3582) at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2348) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2306) at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:834) at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:47) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:346) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.onseven.dbvis.g.B.D.ā(Z:1413) at com.onseven.dbvis.g.B.F$A.call(Z:1474) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) SQLState(S1000) vendor code(0) java.sql.SQLException: Operation not allowed after ResultSet closed at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1078) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) at com.mysql.jdbc.ResultSetImpl.checkClosed(ResultSetImpl.java:804) at com.mysql.jdbc.ResultSetImpl.realClose(ResultSetImpl.java:7331) at com.mysql.jdbc.ResultSetImpl.close(ResultSetImpl.java:923) at com.mysql.jdbc.StatementImpl.realClose(StatementImpl.java:2585) at com.mysql.jdbc.StatementImpl.close(StatementImpl.java:577) at com.mysql.jdbc.ConnectionImpl.loadServerVariables(ConnectionImpl.java:4228) at com.mysql.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:3582) at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2348) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2306) at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:834) at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:47) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:346) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.onseven.dbvis.g.B.D.ā(Z:1413) at com.onseven.dbvis.g.B.F$A.call(Z:1474) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) SQLState(S1000) vendor code(0) 08:57:05 [DEBUG pool-2-thread-1 C.ā] RootConnection: JDBC4Connection.setAutoCommit(true) 08:57:05 [DEBUG ExecutorRunner-pool-1-thread-1 G.Ć] Using facade: mysql for prod-new 08:57:05 [DEBUG ExecutorRunner-pool-1-thread-1 AbstractFacade.getColumn] executing "select database()" 08:57:05 [DEBUG pool-2-thread-1 C.ā] RootConnection: JDBC4Connection.createStatement() 08:57:05 [DEBUG pool-2-thread-1 B.ā] RootConnection: StatementImpl.executeQuery("select database()") This is DbVis 9.1.2 Pro and Java 1.7_45 and the connector bundled with DbVis.