Constant caching could hold objects longer than their referenced lifetime
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Key: JRUBY-3086
URL: http://jira.codehaus.org/browse/JRUBY-3086
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Reporter: Charles Oliver Nutter
Fix For: JRuby 1.1.6
We added constant caching in 1.1.5, but it uses all hard references to the
constant values and the cache sites are passively flushed. This means they
could easily hold a constant value longer than it would normally survive if it
is replaced but never referenced from that cache site again. We need to examine
how likely this is to happen, determine the potential impact, and consider
using weak references for constant caching.
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