WeakReferences and Dynamic Proxies

As I have said before, I have been hoping to augment my blog's slice-of-life commentary with some technical content specifically related to software development. Here's the first of possibly many more installments. Eamonn McManus has a very interesting post about using dynamic proxies in Java to guard access to weak references. I'm not sure when I or anyone else will need to use this technique, but its a very well-written exploration of these two somewhat esoteric features of the Java platform and as a bonus, it features some good examples of new J2SE 5.0 technologies, such as generics and the java.util.concurrent package.