Type returnType = method.getGenericReturnType();
    Type paramType = getOnlyParameterType();
    TestSubtype spec = method.getAnnotation(TestSubtype.class);
    assertWithMessage("%s is subtype of %s", paramType, returnType)
        .that(TypeToken.of(paramType).isSubtypeOf(returnType))
        .isTrue();
    assertWithMessage("%s is supertype of %s", returnType, paramType)
        .that(TypeToken.of(returnType).isSupertypeOf(paramType))

    Type returnType = method.getGenericReturnType();
    Type paramType = getOnlyParameterType();
    TestSubtype spec = method.getAnnotation(TestSubtype.class);
    assertWithMessage("%s is subtype of %s", paramType, returnType)
        .that(TypeToken.of(paramType).isSubtypeOf(returnType))
        .isTrue();
    assertWithMessage("%s is supertype of %s", returnType, paramType)
        .that(TypeToken.of(returnType).isSupertypeOf(paramType))

            throws ComponentConfigurationException {
        Class<?> rawPropertyType = paramType.getRawType();

        if (valueType != null && rawPropertyType.isAssignableFrom(valueType)) {
            rawPropertyType = valueType; // pick more specific type
        }

        return convertProperty(beanType, rawPropertyType, paramType.getType(), configuration);
    }

    Object[] params = new Object[paramTypes.length];
    for (int i = 0; i < paramTypes.length; i++) {
      Class<?> paramType = paramTypes[i];
      if (paramType.equals(String.class)) {
        params[i] = cause.toString();
      } else if (paramType.equals(Throwable.class)) {
        params[i] = cause;
      } else {
        return null;
      }
    }
    try {

    Object[] params = new Object[paramTypes.length];
    for (int i = 0; i < paramTypes.length; i++) {
      Class<?> paramType = paramTypes[i];
      if (paramType.equals(String.class)) {
        params[i] = cause.toString();
      } else if (paramType.equals(Throwable.class)) {
        params[i] = cause;
      } else {
        return null;
      }
    }
    try {