issues after porting a mac app from Java 6 to 7u9 (original) (raw)

Joshua Smith jesmith at kaon.com
Mon Nov 12 07:29:18 PST 2012

If this is the problem, we've found that -XX:+UseCompressedOops makes a huge difference in our apps.

On Nov 12, 2012, at 10:08 AM, Phil Race <philip.race at oracle.com> wrote:

On 11/12/12 6:54 AM, Rick Hillegas wrote:

2) The other problem is probably too vague, but here goes: I seem to have memory management issues. After running the app for a while, it starts freezing up and I watch the beachball spin. Eventually the app becomes unusable and I have to re-start it. Is it expected that I will need to give an app more memory in order to run it on Java 7? This could be VM differences. 64 bit vs 32 bit maybe. JDK 7 is 64 bit only. If you are explicitly constraining memory that could well be an issue. If you are using defaults you might want to see which VM you were using with JDK6. If it was 32 bit, toggle it to 64 bit and see if the issues occur there as well. -phil.

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