Bug 189598 [linux][smoke]GUIException when new style in Layout or through main menu[0300]
Description: GUIException when new style in Layout or through main menu Build number:2.2.0.v200705291039 Steps to reproduce: 1. New a report. 2. New a style by right click in Layout. 3. New a style through main menu Expected result: A new style is inserted. Actual result: Fail to new style and throw exception. Error log:N/A
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/command/SelectionHandler.java
for ( int i = 0; i < list.size( ); i++ )
		{
			Object obj = list.get( i );
			if ( obj instanceof TableEditPart )
			{
				part = (TableEditPart) obj;
			}
			else if ( obj instanceof TableCellEditPart )
			{
				part = (TableEditPart) ( (TableCellEditPart) obj ).getParent( );
			}
		}
		return part;
	}
	/**
	 * Gets list edit part.
	 * 
	 * @return The current selected list edit part, null if no list edit part is
	 *         selected.
	 */
	protected ListEditPart getListEditPart( )
	{
		List list = getSelectedObjects( );
		if ( list.isEmpty( ) )
		{
			return null;
		}
		ListEditPart part = null;
		for ( int i = 0; i < list.size( ); i++ )
		{