java.lang.NullPointerException at org.netbeans.modules.visualweb.dataconnectivity.utils.SampleDatabaseCreator.extractSampleDatabase(SampleDatabaseCreator.java:126) at org.netbeans.modules.visualweb.dataconnectivity.utils.SampleDatabaseCreator.createDatabase(SampleDatabaseCreator.java:188) at org.netbeans.modules.visualweb.dataconnectivity.naming.DerbyWaiter.(DerbyWaiter.java:79) at org.netbeans.modules.visualweb.dataconnectivity.DataconnectivityModuleInstaller$1.run(DataconnectivityModuleInstaller.java:125) at org.netbeans.core.windows.WindowManagerImpl$Exclusive.run(WindowManagerImpl.java:1276) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)