Bug 212109 [Automation][Acceptance]NPE is thrown out when previewing report
Description: NPE is thrown out when preview Test Date: 20071206 Test Build: BIRT2.3.0 Daily Build: v20071206-1112 Step to reproduce: 1. Use the report attached 2. Preview it
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/presentation/LocalizedContentVisitor.java
else
		{
			data.setText( "" ); 
		}
	}
	/**
	 * handle the label.
	 * 
	 * @param label
	 *            label content
	 */
	public Object visitLabel( ILabelContent label, Object value )
	{
		handleOnRender( label );
		processLabel( label );
		return label;
	}
	/**
	 * process the label content
	 * 
	 * <li> localize the help text
	 * <li> localize the label content
	 * <li> handle it as it is an text
	 * 
	 * @param label
	 *            label object
	 */
	protected void processLabel( ILabelContent label )
	{
		String helpText = localize( label, label.getHelpKey( ), label.getHelpText( ) );