java.lang.NullPointerException
        at org.netbeans.modules.wsdlextensions.jdbc.validator.JDBCComponentValidator.visit(JDBCComponentValidator.java:376)
        at org.netbeans.modules.wsdlextensions.jdbc.impl.JDBCOperationInputImpl.accept(JDBCOperationInputImpl.java:45)
        at org.netbeans.modules.wsdlextensions.jdbc.validator.JDBCComponentValidator.validate(JDBCComponentValidator.java:173)
        at org.netbeans.modules.xml.xam.spi.Validation.validate(Validation.java:96)
        at org.netbeans.modules.xml.validation.ValidationOutputWindowController.validate(ValidationOutputWindowController.java:85)
        at org.netbeans.modules.xml.validation.ValidateAction$RunAction.run(ValidateAction.java:112)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:561)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:986)