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Re: BufferedImages not garbage collected -- any suggestions?

Michael Ellis wrote:


This memory leak search began when I was qualifying code that scrolls through thousands of BufferedImages. Of course, only a small fraction of these images are displayed at any given time, so the code has occasion to create new BufferedImages for the ones being displayed and to dispose of the unused, out-of-view instances. I think that it is worth mentioning that each BufferedImage is owned by a Component that is responsible for painting the image. 

[snip]

What made the difference was having the Component class' "finalize()" method explicitly call "flush()" on its BufferedImage before nulling it out. Once this was done, the verbose output from the GC confirmed that the BufferedImage's memory was being reclaimed and the OutOfMemoryException stopped.


Given what others have observed about BufferedImage.flush(), I'm wondering how you are creating your BufferedImages. If you are having the component create it, or calling createCompatibleImage(), then maybe you are getting a subclass of BufferedImage that does something different? Sorry, I haven't got time to test that right now, but it would interesting to know.

Rob
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References: 
 >Re: BufferedImages not garbage collected -- any suggestions? (From: Michael Ellis <email@hidden>)
 >Re: BufferedImages not garbage collected -- any suggestions? (From: Michael Hall <email@hidden>)
 >Re: BufferedImages not garbage collected -- any suggestions? (From: Michael Ellis <email@hidden>)



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