public class Equality_Example
extends Object
implements ij.plugin.PlugIn

An example that demonstrates one potential peril of the Cluster ExecutorService. The assumption of deep equality across submission of a Callable is broken when using Cluster.submit() because it relies on Serialization, unlike any other typical ExecutorService. In other words, a submitted Callable is Serialized, then sent over a network stream to the remote machine on which is it call()'ed. The result of that call is Serialized remotely, then returned, also via a network stream. This means that even though new is not explicitly called, the get() method on the corresponding Future will return a freshly minted object, whose member variables will also be freshly minted, and so forth. Call run() either with or without a Cluster running to see the difference. This class also illustrates a potential workaround for this problem, using a HashMap.