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
element1.setText( "new Label1" ); 
		TextItemHandle element3 = elemFactory.newTextItem( "text" ); 
		elements.add( element1 );
		elements.add( element2 );
		GroupElementHandle groupElementHandle = new SimpleGroupElementHandle(
				designHandle, elements );
		
		assertFalse( groupElementHandle.hasLocalPropertiesForExtendedElements( ) );
		LabelHandle baseLabel = elemFactory.newLabel( "baseLabel" ); 
		designHandle.getComponents( ).add( baseLabel );
		element1.setExtends( baseLabel );
		element2.setExtends( baseLabel );
		
		assertTrue( groupElementHandle.hasLocalPropertiesForExtendedElements( ) );
		elements.add( element3 );
		
		assertFalse( groupElementHandle.hasLocalPropertiesForExtendedElements( ) );
	}
	/**
	 * Test propertyIterator().`
	 * 
	 * @throws SemanticException
	 */
	public void testGetPropertyIterator( ) throws SemanticException
	{
		
		ArrayList elements = new ArrayList( );
		LabelHandle element1 = elemFactory.newLabel( "label" ); 
		TextItemHandle element2 = elemFactory.newTextItem( "text" ); 
		elements.add( element2 );