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  1.  Home
  2. JAVA400-L
  3. March 2009

Re: finalize(), System.runFinalization(), System.gc();

David Gibbs skrev:
Lim Hock-Chai wrote:
Is there a guideline on when should an application manually calls the
finalize(), System.runFinalization(), or System.gc()? Or should
application never calls these methods and let the JVM mangement it on
its own?

I've always been under the assumption that you should let the JVM manage finalization.

In fact, I think it's recommend that you don't even create your own finalization method, as there is no guarantee as to when it will actually run.
Agreed.

Altså System.gc() is just a hint that you think that now would be a good time to do garbage collection.
In my experience the best you can do to help the JVM is to let objects fall out of scope as soon as you are done with them, or even remove references early by setting them to null. More than that requires external tuning of the JVM.


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