Java In A Nutshell, 5th Edition

An exception of this type is thrown during reflection if the generic type information contained in a class file is syntactically correct but semantically wrong. An example would be if the number of type parameters in a ParameterizedType differs from the number of type variables declared by the generic type. See also GenericSignatureFormatError . Although this type is not an Error , it does indicate a malformed class file and should not arise in common practice.

public class MalformedParameterizedTypeException extends RuntimeException { // Public Constructors public MalformedParameterizedTypeException ( ); }