When the applications JRE specification (such as version="1.3+) matches
more than one configured JRE, the spec says the latest JRE will be used.
Currently the native launching code uses the first one that matches.
JDK-4723634JDK1.4.0_x - Java Web Start looks for older JRE if multiple jre exists
JDK-4828440When installing a new JRE it should be set to default JRE in Jaws