Re: [Springframework-developer] Cleanup of context resources on webapp reload

[Dmitriy K. <dko...@ru...>]

I believe that the minimum JDK supported by Spring is 1.3 There are some Spring deployments (WebSphere 4 and 5 running 1.3 for instance)...

Dmitriy.

Les A. Hazlewood wrote:

> Quoting Dmitriy Kopylenko <dko...@ru...>:
> 
> 
>>I'm just wondering, would the use of WeakHashMap in
>>CachedIntrospectionResults help?
> 
> 
> I'm curious about CachedIntrospectionResults for another reason...
> 
> What is the minimum JDK supported by Spring?
> 
> If its JDK 1.4, I would argue that CachedIntrospectionResults is an unnecessary
> class (and infact incurs additional runtime memory overhead).
> 
> JDK 1.4 already caches its bean introspection results, including method and
> property descriptors, and it does so using WeakHashMaps.  So when you do a
> lookup for a bean, it returns the previously cached info (otherwise it does the
> introspection and then caches it).  CachedIntrospectionResults more or less
> duplicates what the 1.4 java.beans.Introspector already does.
> 
> If the minimum JDK supported by Spring is < 1.4, I can understand keeping the
> class, otherwise, wouldn't it be better to deprecate it?
> 
> If so, it would be an easy fix, since CachedIntrospectionResults is only used in
> o.s.beans.BeanWrapperImpl in two places to retrieve PropertyDescriptors.
> 
> Any thoughts?
> 
> Les
> 
> 
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