NOPClosure has a broken equals method
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Key: COLLECTIONS-340
URL: https://issues.apache.org/jira/browse/COLLECTIONS-340
Project: Commons Collections
Issue Type: Bug
Components: Functor
Reporter: Goran Hacek
Priority: Minor
Fix For: Generics
Equals method of NOPClosure class doesn't follow objects equals contract. It
isn't symmetric nor transitive and it is just plain wrong.
Following code evaluates to true on most (if not all) JVM implementations:
{noformat} NOPClosure.INSTANCE.equals(new
Integer(System.identityHashCode(NOPClosure.INSTANCE))) {noformat}
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