Java tutorial
package org.springframework.security.oauth2.common.exceptions; /** * Exception thrown when a client was unable to authenticate. * * @author Ryan Heaton * @author Dave Syer */ @SuppressWarnings("serial") public class InvalidClientException extends ClientAuthenticationException { public InvalidClientException(String msg) { super(msg); } @Override public int getHttpErrorCode() { return 401; } @Override public String getOAuth2ErrorCode() { return "invalid_client"; } }