Bug 209126 DataException throws out when set highlight condition in sub-report[0302]
Description: Set highlight condition in sub-report, when "select value..." in the highlight dialog, DataException throws out. Build version:2.3.0.v20071108-0800 Steps to reproduce: 1.Get the attached report design file, which contains a sub-report. 2.Select the inner table, and then go to "highlight" tab in the property editor view to set a highlight rule. When click "select value...", DataException throws out. Error: The expression's value can not be retrieved. An error happened in data type conversion. Can not convert the value of org.eclipse.birt.data.engine.script.DataExceptionMocker@79c17b to Integer type.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/HighlightRuleBuilder.java
if ( !stylesChooser.getText( ).equals( NONE_DISPLAY_TEXT ) )
				{
					rule.setStyle( (StyleHandle) styles.get( stylesChooser.getText( ) ) );
				}
				else
				{
					/**
					 * Sets our necessary style properties.
					 */
					if ( color.getRGB( ) != null )
					{
						rule.setProperty( HighlightRule.COLOR_MEMBER,
								new Integer( colorValue ) );
					}
					if ( backColor.getRGB( ) != null )
					{
						rule.setProperty( HighlightRule.BACKGROUND_COLOR_MEMBER,
								new Integer( backColorValue ) );
					}
					if ( familyValue != null )
					{
						rule.setProperty( HighlightRule.FONT_FAMILY_MEMBER,
								familyValue );
					}
					if ( sizeValue != null )
					{
						rule.setProperty( HighlightRule.FONT_SIZE_MEMBER,
								sizeValue );
					}
					if ( isItalicChanged )