java.lang.ClassNotFoundException: org.netbeans.modules.xml.schema.refactoring.query.actions.QueryAction
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(AccessController.java:0)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
Caused: java.lang.ClassNotFoundException: org.netbeans.modules.xml.schema.refactoring.query.actions.QueryAction starting from SystemClassLoader[667 modules] with possible defining loaders null and declared parents [ModuleCL@11f1f12[org.netbeans.modules.vmd.analyzer], ModuleCL@1ac1adf[org.netbeans.lib.uihandler], ModuleCL@1885088[org.netbeans.modules.xml.xam.ui], ModuleCL@433545[org.netbeans.modules.project.ant], ModuleCL@59b924[org.netbeans.modules.debugger.jpda.ui], ModuleCL@1cb2dd1[org.netbeans.modules.editor.util], ModuleCL@2ba3e4[org.netbeans.modules.websvc.editor.hints], ModuleCL@1ea2de1[org.netbeans.modules.mobility.midpexamples], ModuleCL@73cc11[org.netbeans.api.xml], ModuleCL@13577ca[org.netbeans.modules.cnd.highlight], ...652 more]
        at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:261)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at org.openide.loaders.InstanceSupport.findClass(InstanceSupport.java:497)
        at org.openide.loaders.InstanceSupport.instanceClass(InstanceSupport.java:145)
        at org.openide.loaders.InstanceDataObject$Ser.instanceClass(InstanceDataObject.java:1245)
        at org.openide.loaders.InstanceDataObject.instanceClass(InstanceDataObject.java:748)
        at org.openide.loaders.FolderInstance$HoldInstance.instanceClass(FolderInstance.java:1122)
        at org.openide.loaders.DataLdrActions.createInstance(DataLdrActions.java:161)
        at org.openide.loaders.FolderInstance.defaultProcessObjectsFinal(FolderInstance.java:870)
        at org.openide.loaders.FolderInstance$1R.run(FolderInstance.java:735)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:602)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1084)