Bug 186940 Style name in theme cannot be identify by auto when reopen the library[01]
Description: Style name in theme cannot be identify by auto when reopen the library[01] Step: 1.Open a library and add a theme 2.New a style on the theme and use the default name that is "NewStyle" 3.Save the library, close it and reopen it again. 4.New another style on the same theme Actual result: The default style name on second times is also "NewStyle" Exception result: The default style name on second times is "NewStyle1"
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/api/GroupElementHandleTest.java
DataItemHandle element1 = elemFactory.newDataItem( "data1" );
		TextItemHandle element2 = elemFactory.newTextItem( "text" ); 
		LabelHandle element3 = elemFactory.newLabel( "label1" ); 
		elements.add( element1 );
		elements.add( element2 );
		elements.add( element3 );
		ReportDesignHandle designHandle = (ReportDesignHandle) design
				.getHandle( design );
		GroupElementHandle groupHandle = new SimpleGroupElementHandle(
				designHandle, elements );
		assertTrue( groupHandle.getPropertyHandle(
				DesignElementHandle.NAME_PROP ).isVisible( ) );
		assertTrue( groupHandle.getPropertyHandle( ReportItem.HEIGHT_PROP )
				.isVisible( ) );
		assertFalse( groupHandle.getPropertyHandle(
				ReportItem.PROPERTY_MASKS_PROP ).isVisible( ) );
		assertFalse( groupHandle.getPropertyHandle( ReportItem.DATA_SET_PROP )
				.isVisible( ) );
		assertFalse( groupHandle.getPropertyHandle( ReportItem.X_PROP )
				.isVisible( ) );
	}
	/**
	 * @throws SemanticException
	 */
	public void testGetDisplayValue( ) throws SemanticException
	{
		SessionHandle session = DesignEngine.newSession( ULocale.GERMAN );
		ReportDesignHandle designHandle = session.createDesign( );
		ArrayList elements = new ArrayList( );
		SimpleMasterPageHandle page1 = elemFactory