Invokable.java 文件源码

/**
 * If the class is parameterized, such as {@link java.util.ArrayList ArrayList}, this returns
 * {@code ArrayList<E>}.
 */
@Override
Type getGenericReturnType() {
  Class<?> declaringClass = getDeclaringClass();
  TypeVariable<?>[] typeParams = declaringClass.getTypeParameters();
  if (typeParams.length > 0) {
    return Types.newParameterizedType(declaringClass, typeParams);
  } else {
    return declaringClass;
  }
}