### Question:
JwsJwksJwtAccessTokenValidator extends JwtAccessTokenValidator { @Override public void setJwsVerifier(JwsSignatureVerifier theJwsVerifier) { throw new IllegalArgumentException("Actual JwsSignatureVerifier will be populated from the JWK Set URL"); }  void setJwksURL(String jwksURL); @Override void setJwsVerifier(JwsSignatureVerifier theJwsVerifier);  }### Answer:
@Test(expected = IllegalArgumentException.class) public void testSetJwsVerifier() { new JwsJwksJwtAccessTokenValidator().setJwsVerifier(new NoneJwsSignatureVerifier()); }