java.lang.IllegalArgumentException: org.openide.loaders.DataObjectNotFoundException: H:\NetBeans\ORM_Hibernate1\src\org at org.openide.loaders.DataFolder.findFolder(DataFolder.java:538) at org.openide.loaders.DataObject.getFolder(DataObject.java:537) at org.openide.loaders.DataFolder.testNesting(DataFolder.java:606) at org.openide.loaders.DataFolder.handleCopy(DataFolder.java:570) at org.openide.loaders.DataObject$2.run(DataObject.java:551) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:502) at org.openide.loaders.DataObjectPool.runAtomicActionSimple(DataObjectPool.java:226) at org.openide.loaders.DataObject.invokeAtomicAction(DataObject.java:866) at org.openide.loaders.DataObject.copy(DataObject.java:549) at org.openide.loaders.DataFolder.handleCopy(DataFolder.java:580) at org.openide.loaders.DataObject$2.run(DataObject.java:551) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:502) at org.openide.loaders.DataObjectPool.runAtomicActionSimple(DataObjectPool.java:226) at org.openide.loaders.DataObject.invokeAtomicAction(DataObject.java:866) at org.openide.loaders.DataObject.copy(DataObject.java:549) at org.openide.loaders.DataFolder.handleCopy(DataFolder.java:580) at org.openide.loaders.DataObject$2.run(DataObject.java:551) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:502) at org.openide.loaders.DataObjectPool.runAtomicActionSimple(DataObjectPool.java:226) at org.openide.loaders.DataObject.invokeAtomicAction(DataObject.java:866) at org.openide.loaders.DataObject.copy(DataObject.java:549) at org.openide.loaders.DataFolder$Paste$2.handlePaste(DataFolder.java:1628) at org.openide.loaders.DataTransferSupport$PasteTypeExt.doPaste(DataTransferSupport.java:176) at org.openide.loaders.DataTransferSupport$PasteTypeExt.paste(DataTransferSupport.java:165) at org.openide.actions.PasteAction$ActionPT.actionPerformed(PasteAction.java:791) at org.netbeans.core.ModuleActions.invokeAction(ModuleActions.java:104) at org.openide.actions.PasteAction$ActionPT.run(PasteAction.java:815) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997) org.openide.loaders.DataObjectNotFoundException: H:\NetBeans\ORM_Hibernate1\src\org at org.openide.loaders.DataObject.find(DataObject.java:501) at org.openide.loaders.DataFolder.findFolder(DataFolder.java:536) at org.openide.loaders.DataObject.getFolder(DataObject.java:537) at org.openide.loaders.DataFolder.testNesting(DataFolder.java:606) at org.openide.loaders.DataFolder.handleCopy(DataFolder.java:570) at org.openide.loaders.DataObject$2.run(DataObject.java:551) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:502) at org.openide.loaders.DataObjectPool.runAtomicActionSimple(DataObjectPool.java:226) at org.openide.loaders.DataObject.invokeAtomicAction(DataObject.java:866) at org.openide.loaders.DataObject.copy(DataObject.java:549) at org.openide.loaders.DataFolder.handleCopy(DataFolder.java:580) at org.openide.loaders.DataObject$2.run(DataObject.java:551) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:502) at org.openide.loaders.DataObjectPool.runAtomicActionSimple(DataObjectPool.java:226) at org.openide.loaders.DataObject.invokeAtomicAction(DataObject.java:866) at org.openide.loaders.DataObject.copy(DataObject.java:549) at org.openide.loaders.DataFolder.handleCopy(DataFolder.java:580) at org.openide.loaders.DataObject$2.run(DataObject.java:551) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:502) at org.openide.loaders.DataObjectPool.runAtomicActionSimple(DataObjectPool.java:226) at org.openide.loaders.DataObject.invokeAtomicAction(DataObject.java:866) at org.openide.loaders.DataObject.copy(DataObject.java:549) at org.openide.loaders.DataFolder$Paste$2.handlePaste(DataFolder.java:1628) at org.openide.loaders.DataTransferSupport$PasteTypeExt.doPaste(DataTransferSupport.java:176) at org.openide.loaders.DataTransferSupport$PasteTypeExt.paste(DataTransferSupport.java:165) at org.openide.actions.PasteAction$ActionPT.actionPerformed(PasteAction.java:791) at org.netbeans.core.ModuleActions.invokeAction(ModuleActions.java:104) at org.openide.actions.PasteAction$ActionPT.run(PasteAction.java:815) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997) org.openide.filesystems.FileStateInvalidException: H:\NetBeans\ORM_Hibernate1\src\org at org.openide.loaders.DataObject.find(DataObject.java:481) at org.openide.loaders.DataFolder.findFolder(DataFolder.java:536) at org.openide.loaders.DataObject.getFolder(DataObject.java:537) at org.openide.loaders.DataFolder.testNesting(DataFolder.java:606) at org.openide.loaders.DataFolder.handleCopy(DataFolder.java:570) at org.openide.loaders.DataObject$2.run(DataObject.java:551) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:502) at org.openide.loaders.DataObjectPool.runAtomicActionSimple(DataObjectPool.java:226) at org.openide.loaders.DataObject.invokeAtomicAction(DataObject.java:866) at org.openide.loaders.DataObject.copy(DataObject.java:549) at org.openide.loaders.DataFolder.handleCopy(DataFolder.java:580) at org.openide.loaders.DataObject$2.run(DataObject.java:551) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:502) at org.openide.loaders.DataObjectPool.runAtomicActionSimple(DataObjectPool.java:226) at org.openide.loaders.DataObject.invokeAtomicAction(DataObject.java:866) at org.openide.loaders.DataObject.copy(DataObject.java:549) at org.openide.loaders.DataFolder.handleCopy(DataFolder.java:580) at org.openide.loaders.DataObject$2.run(DataObject.java:551) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:502) at org.openide.loaders.DataObjectPool.runAtomicActionSimple(DataObjectPool.java:226) at org.openide.loaders.DataObject.invokeAtomicAction(DataObject.java:866) at org.openide.loaders.DataObject.copy(DataObject.java:549) at org.openide.loaders.DataFolder$Paste$2.handlePaste(DataFolder.java:1628) at org.openide.loaders.DataTransferSupport$PasteTypeExt.doPaste(DataTransferSupport.java:176) at org.openide.loaders.DataTransferSupport$PasteTypeExt.paste(DataTransferSupport.java:165) at org.openide.actions.PasteAction$ActionPT.actionPerformed(PasteAction.java:791) at org.netbeans.core.ModuleActions.invokeAction(ModuleActions.java:104) at org.openide.actions.PasteAction$ActionPT.run(PasteAction.java:815) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)