Bug 154814 Use library, add library, delete library selection can't be found on Library right click menu in Library explorer
Details: Use library, add library, delete library selection can't be found on Library right click menu in Library explorer Step: 1.New a library and publish to resource folder. 2.New a report design and open library explorer. 3.Right click on the library in library explorer to use the library. Actual result: The selection of use, add ,delete library cannot be found. Exception result: Do can use the right click menu to use, add, delete library.
UI/org.eclipse.birt.report.designer.ui.lib.explorer/src/org/eclipse/birt/report/designer/ui/lib/explorer/LibraryExplorerTreeViewPage.java
.getString( "LibraryExplorerTreeViewPage.toolTips.DragAndDropLayout" ); 
			}
			else if ( object instanceof ParameterHandle
					|| object instanceof ParameterGroupHandle
					|| object instanceof EmbeddedImageHandle
					|| object instanceof ReportItemHandle )
			{
				return Messages
						.getString( "LibraryExplorerTreeViewPage.toolTips.DragAndDropToOutlineORLayout" );
			}
			if ( object instanceof LibraryHandle )
			{
				return ( (LibraryHandle) object ).getFileName( );
			}
		}
		return ""; 
	}
	/**
	 * The <code>Page</code> implementation of this <code>IPage</code>
	 * method disposes of this page's control (if it has one and it has not
	 * already been disposed). Disposes the visitor of the element
	 */
	public void dispose( )
	{
		if ( reportPreferenceNode != null )
			reportPreferenceNode.removePreferenceChangeListener( this );
		super.dispose( );
	}
	protected boolean isDisposed( )
	{