This class is a very simple MRU cache based on my LinkedTree implementation. It serves as a working example of the use of the linked tree. However, do note that it does not leverage one of the most powerful attributes of the tree, which is the ability to position to and navigate from specific nodes by exact and closest-match keys.
This class also contains a thread-safe subclass as an inner class. I am not yet completely decided on whether this is a great approach to the problem of creating a synchronized version of an object, but it seems to have a certain elegance about it.
||Make class generic and use soft references instead of hard references.|
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The source compiles to Java 5.