Why do finalizers have a "severe performance penalty"?

Posted by kunjaan on Stack Overflow See other posts from Stack Overflow or by kunjaan
Published on 2010-05-18T18:52:20Z Indexed on 2010/05/18 19:00 UTC
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Filed under:

java

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finalizer

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object-destruction

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memory-management

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Performance

Effective Java says :

There is a severe performance penalty for using finalizers.

Why is it slower to destroy an object using the finalizers?

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