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From: Michal Kleczek <kleku75@gmail.com>
Newsgroups: comp.lang.java.programmer
Subject: Re: Managed-Code Bloat
Date: Wed, 08 Jun 2011 09:23:50 +0200
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BGB wrote:

> 
> also, possible though are some garbage reduction tricks:
> ref-counting (as they can detect earlier objects that have died);
> (heap-based) value types (because their lifespan behavior is trivial to
> determine, and so one can allocate/free them aggressively);
> ...
> 
> ref-counting has the drawback though that it is very difficult to write
> "general purpose" code and not screw up the ref-counts somewhere (which
> can easily blow up the program), causing me to generally not use them.
> 

There has been some work done to implement ref-counting GC in (Sun) JVM. 
See:
http://www.cs.technion.ac.il/~erez/Papers/refcount.ps
The results were promissing but it has not been incorporated into production 
JVM.

-- 
Michal