Bug 206850 [Regression] Error pops up when select value for a map or highlight rule to group header row [0302]
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/elements/structures/StyleRule.java
}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.core.PropertyStructure#getIntrinsicProperty(java.lang.String)
	 */
	protected Object getIntrinsicProperty( String propName )
	{
		if ( OPERATOR_MEMBER.equals( propName ) )
			return operator;
		else if ( VALUE1_MEMBER.equals( propName ) )
			return value1;
		else if ( VALUE2_MEMBER.equals( propName ) )
			return value2;
		else if ( TEST_EXPR_MEMBER.equals( propName ) )
			return testExpression;
		else if ( IS_DESIGN_TIME_MEMBER.equals( propName ) )
			return isDesignTime;
		return super.getIntrinsicProperty( propName );
	} /*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.report.model.core.PropertyStructure#setIntrinsicProperty(java.lang.String,
		 *      java.lang.Object)
		 */
	protected void setIntrinsicProperty( String propName, Object value )
	{
		if ( OPERATOR_MEMBER.equals( propName ) )
			operator = (String) value;
		else if ( VALUE1_MEMBER.equals( propName ) )