udunits/src/main/java/ucar/units/ConverterImpl.java
public static Converter
    create(Unit fromUnit, Unit toUnit)
	throws ConversionException
    {
	return fromUnit.getConverterTo(toUnit);
    }
public static Converter
    create(Unit fromUnit, Unit toUnit)
	throws ConversionException
    {
	return fromUnit.getConverterTo(toUnit);
    }
Factory method for creating a unit converter.
@param fromUnit		The unit from which to convert.
@param toUnit            The unit to which to convert.
@throws ConversionException      The units are not convertible.