Bug 158494 [Regression] Exception is thrown out when apply a pre-defined style to an item
Exception is thrown out when apply a pre-defined style to an item Steps to reproduce: 1. New a pre-defined style "Data": edit font color as red 2. Drag data from palette to lay out 3. Choose the data item and go to Properties editor -> General -> Style Expected result: Style Data should not show up Actual result: Choose Style Data and exception is thrown out Error log: A BIRT exception occurred. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Model Plug-in ID:org.eclipse.birt.report.model Version:2.1.1.v20060922-0630 Error Code:Error.StyleException.NOT_FOUND Error Message:The style "Data" used by report.Body[0] is not found.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/views/attributes/providers/ChoiceSetFactory.java
*            Choice type key.
	 * @return A String array contains all the allowed values.
	 */
	private static Object[] getUnitChoiceSet( String unitKey )
	{
		ArrayList list = new ArrayList( );
		IChoiceSet choiceSet = DesignEngine.getMetaDataDictionary( )
				.getChoiceSet( unitKey );
		if ( choiceSet != null )
		{
			IChoice[] choices = choiceSet.getChoices( );
			for ( int i = 0; i < choices.length; i++ )
			{
				list.add( choices[i] );
			}
		}
		return list.toArray( new IChoice[0] );
	}
	/**
	 * Gets all the DataSets available.
	 * 
	 * @return A String array contains all the DataSets.
	 */
	public static String[] getDataSets( )
	{
		ArrayList list = new ArrayList( );
		ModuleHandle handle = SessionHandleAdapter.getInstance( )
				.getReportDesignHandle( );
		for ( Iterator iterator = handle.getVisibleDataSets( ).iterator( ); iterator.hasNext( ); )
		{