Common Java to .NET type conversion

Helpful References

Java Class ........................................	C# Version .............................................	Lucene.Net Only	Notes
Entry<K,V>	KeyValuePair<TKey,TValue>
HashMap<K,V>	Dictionary<TKey,TValue>
Class<? extends Type>	Type		There is no direct equivalent in .net for this. You'll have to manually check for type information. In some cases, generally as method type parameters, you can enforce compile time checking, like `MyMethod<T>(T thing) where T : IMyConstraint`
ICloseable	IDisposable		This comparison is for when the class needs to release resources. When an object is disposed it would be best to throw ObjectDisposedExceptions.
ICloseable	ICloseable	X	* Lucene.Net.Support This should only be used for file operations or things that needs to be closed that could be reopened
WeakHashMap<K,V>	WeakDictionary<TKey,TValue>	X	* Lucene.Net.Support. There are some differences between how the two work. The C# version has WeakReference<T> to both the key and value. As far as I know its only the key in the java version.
WeakReference<T>	WeakReference<T>	X	* Lucene.Net.Support. There is a WeakReference<T> in silverlight 5. Thus a generic version of WeakReference was created for Lucene.Net