Bug 179629 After create a x-tab with a cube, a error occurs in Problems sheet[1102]
Description: After create a x-tab with a cube, a error occurs in Problems sheet[1102] Build number: 2.2.0.v20070328-0630 Steps to reproduce: 1, Create a cube 2, Create a x-tab using the cube 3, Check the error message in Problems sheet Expected result: No error occurs after create a x-tab Actual result: The error message is "The ExtendedItem must be able to access one data set."
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/extension/ReportItemExtensionTest.java
/**
	 * Tests creating extension element in the design/library.
	 * 
	 * @throws Exception
	 */
	public void testCreateExtension( ) throws Exception
	{
		SessionHandle session = new DesignEngine( new DesignConfig( ) )
				.newSessionHandle( ULocale.ENGLISH );
		designHandle = session.createDesign( );
		ExtendedItemHandle elementHandle = designHandle.getElementFactory( )
				.newExtendedItem( null, TESTING_MATRIX_NAME );
		assertNotNull( elementHandle.getName( ) );
		libraryHandle = session.createLibrary( );
		elementHandle = libraryHandle.getElementFactory( ).newExtendedItem(
				null, TESTING_MATRIX_NAME );
		assertEquals( "NewTestingMatrix", elementHandle.getName( ) ); 
		PeerExtensionElementDefn extDefn = (PeerExtensionElementDefn) MetaDataDictionary
				.getInstance( ).getExtension( TESTING_MATRIX_NAME );
		IMessages msgs = extDefn.getReportItemFactory( ).getMessages( );
		assertEquals( "TestingMatrix", msgs.getMessage( 
				(String) extDefn.getDisplayNameKey( ), ULocale.ENGLISH ) );
		elementHandle = libraryHandle.getElementFactory( ).newExtendedItem(
				null, TESTING_BOX_NAME );
		assertEquals( "NewTestingBox", elementHandle.getName( ) ); 
		extDefn = (PeerExtensionElementDefn) MetaDataDictionary.getInstance( )
				.getExtension( TESTING_BOX_NAME );
		assertNull( extDefn.getReportItemFactory( ).getMessages( ) );
	}
	class MyListener implements Listener