/** Determine the JDK Version Number
*
* There is a human readible JDK version number available as a Java property. The property name is called "java.version".
* Unfortunately it is complicated to parse it mechanically. A somewhat better choice is the Java property called
* "java.class.version". The property value can be converted to a floating pointer value. JDK 1.1 implies 45.3. JDK 1.2
* implies 46.0. JDK 1.3 implies 47.0. JDK 1.4 implies 48.0.
* <p>
* java.class.version property value
* <ul>
* <li> JDK 1.1 = 45.3
* <li> JDK 1.2 = 46.0
* <li> JDK 1.3 = 47.0
* <li> JDK 1.4 = 48.0
* </ul>
*
* @author Thomas Rischbeck <[email protected]>
* @version $Id: VersionCheck.java 2342 2006-03-30 13:06:17Z $
*/