https://github.com/FasterXML/java-classmate: Library for introspecting types with full generic information including resolving of field and method types. (fasterxml.com)
  • Tatu Saloranta
  • Brian Langel 
Package that contains main public interface of ClassMate
package.

 Most commonly resolution starts with TypeResolver, using its resolve() method, which returns a ResolvedType instance. These type objects contain all necessary information about type itself; but if type information on members (fields, methods, constructors, static members) is needed, MemberResolver can resolve types for members: it takes ResolvedTypes. 
/**
 * Package that contains main public interface of ClassMate
 * package.
 *<p>
 * Most commonly resolution starts with {@link com.fasterxml.classmate.TypeResolver},
 * using its <code>resolve()</code> method, which returns a
 * {@link com.fasterxml.classmate.ResolvedType} instance.
 * These type objects contain all necessary information about type itself;
 * but if type information on members (fields, methods, constructors, static
 * members) is needed, {@link com.fasterxml.classmate.MemberResolver} can
 * resolve types for members: it takes {@link com.fasterxml.classmate.ResolvedType}s.
 */
package com.fasterxml.classmate;