Bug 195607 NPE is thrown when calling DimensionHandle:: getAbsoluteValue()
If a DimensionHandle did not set DimensionValue, NPE will thrown when calling DimensionHandle:: getAbsoluteValue().
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ComputedValueHandler.java
}
		return computeRelativeValue( absoluteFontSizeValue,
				relativeDimensionValue );
	}
	/**
	 * Returns the font size dimension handle of the element which provides the
	 * factual font size.
	 * 
	 * @return the font size dimension handle
	 */
	private DimensionHandle getFactualFontSizeHandle( )
	{
		String unit = dimensionHandle.getUnits( );
		if ( !DesignChoiceConstants.UNITS_EM.equalsIgnoreCase( unit )
				&& !DesignChoiceConstants.UNITS_EX.equalsIgnoreCase( unit )
				&& !DesignChoiceConstants.UNITS_PERCENTAGE
						.equalsIgnoreCase( unit ) )
		{
			assert false;
			return dimensionHandle.elementHandle
					.getDimensionProperty( IStyleModel.FONT_SIZE_PROP );
		}
		Object propValue = null;
		ElementPropertyDefn fontSizePropDefn = (ElementPropertyDefn) MetaDataDictionary
				.getInstance( )
				.getElement( ReportDesignConstants.STYLE_ELEMENT ).getProperty(
						IStyleModel.FONT_SIZE_PROP );
		DesignElementHandle e = dimensionHandle.getElementHandle( );
		
		boolean computedPropertyFound = false;