Which JVM for JDeveloper on Tiger, 1.4 or 5.0?

Hi there,
just upgraded to MacOS Tiger and so now JSDK 5.0 is available as an option. Default JVM is still 1.4.2_07
Does anybody has experience on which JVM is suppoused to work best for JDeveloper Preview 10.1.3? And which is the right way to change it in Mac version of JDeveloper?
thanks for any advice.
Ignacio

Actually to run JDeveloper itself you need to use JDK 1.4.
You can develop JDK 5.0 applications with 10.1.3 preview - but the tool itself still need to be started with 1.4.

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