Developer 10g hangs

Does Developer 10g hang for anybody else? Two of us have independently run the application on Windows XP machines with 512MB of memory. While clicking around in the application it will sometimes hang and needs to be killed. When I ran it with the java.exe console opened, I noticed a few NullPointerException.s

JDev 9.0.5 (10g preview) has been remarkably stable for me running XP with 1GB RAM, but I've noticed one place where it will (almost) consistently hang:
In the Entity Object Editor, changing the "Default" for an entity attribute and clicking "OK" will display the "Java Code Generation" dialog with the message "Updating files for ... Saving Java and XML files." and completely lock up JDev. This appears to happen mostly when the embedded server is running. However I have killed the jdevw.exe (and separate javaw.exe) process, re-started JDev, and it will still lock up on me when I try it again.
Oh, it might have something to do with the default value I was trying to set. It appears for Date attributes to expect only a literal, not SYSDATE (which is what I'd really like the default value to be set to...). I tried entering "new Date()" for kicks and that appears to lock it up every time.
Hope that's useful information for somebody...
--Douglas
P.S. How can I get the default value of a date type attribute to be the current date in a VO?

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