TestClassUtil

public static void main(String[] args) throws ClassNotFoundException, IOException {
      ClassInfoUtil ciu = ClassUtil.getClassInfoFromClassInJar("/Users/rugi/Downloads/commons-collections-3.2.1.jar", "org/apache/commons/collections/BeanMap.class");
      Method[] m = ciu.getMethods();
      Constructor[] c = ciu.getConstructors();
      System.out.println("--------------------");
      System.out.println("Constructores:"+c.length);
      for (int i = 0; i < c.length; i++) {
          System.out.println("    Constructor["+i+"]");
          Constructor constructor = c[i];
          System.out.println("        "+constructor.getName());
          Class[] parameterTypes = constructor.getParameterTypes();
          System.out.println("        Parametros:"+parameterTypes.length);
          for (int j = 0; j < parameterTypes.length; j++) {
              Class class1 = parameterTypes[j];
              System.out.println("       Parametro[" + i + "]:" + class1.getCanonicalName());
          }            
      }
      System.out.println("--------------------");
      System.out.println("Metodos"+m.length);
      for (int i = 0; i < m.length; i++) {
          Method method = m[i];
          System.out.println("---------------------------");
          System.out.println(method.getName());
          Class[] parameterTypes = method.getParameterTypes();
          System.out.println("Parametros:");
          for (int j = 0; j < parameterTypes.length; j++) {
              Class class1 = parameterTypes[j];
              System.out.println("       Parametro[" + i + "]:" + class1.getCanonicalName());
          }
          System.out.println("Tipo de retorno");
          Class returnType = method.getReturnType();
          System.out.println("    Return:" + returnType);
          System.out.println("---------------------------");
      }
  }