What are some Java memory management best practices? [closed]

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Don’t try to outsmart the VM. The first loop is the suggested best practice, both for performance and maintainability. Setting the reference back to null after the loop will not guarantee immediate memory release. The GC will do its job best when you use the minimum scope possible.

Books which cover these things in detail (from the user’s perspective) are Effective Java 2 and Implementation Patterns.

If you care to find out more about performance and the inners of the VM you need to see talks or read books from Brian Goetz.

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