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This program provides another concrete example of noncompliance. The InformationLeak class holds a HashMap instance and returns a particular record to the caller based on either its key value in the map or the actual mapped value. The getData() method has been overloaded to return the contained data indexed by the key value in one case, whereas in the other, it checks whether a particular record exists before formatting and returning it as a String object. The InformationLeak class inherits from java.util.HashMap and overrides its get() method in order to provide the checking functionality. This implementation can be extremely confusing to the client who will expect the getData() methods to behave identically and not variably, depending on whether an index of the record is specified or the retrievable value.

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Automated Detection

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