### Question:
SignedJwt { public static SignedJwt parseToken(String tokenContent) { Errors.Collector collector = Errors.collector(); Matcher matcher = JWT_PATTERN.matcher(tokenContent); if (matcher.matches()) { String headerBase64 = matcher.group(1); String payloadBase64 = matcher.group(2); String signatureBase64 = matcher.group(3); String headerJsonString = decode(headerBase64, collector, "JWT header"); String payloadJsonString = decode(payloadBase64, collector, "JWT payload"); byte[] signatureBytes = decodeBytes(signatureBase64, collector, "JWT signature"); collector.collect().checkValid(); String signedContent = headerBase64 + '.' + payloadBase64; JsonObject headerJson = parseJson(headerJsonString, collector, headerBase64, "JWT header"); JsonObject contentJson = parseJson(payloadJsonString, collector, payloadBase64, "JWT payload"); collector.collect().checkValid(); return new SignedJwt( tokenContent, headerJson, contentJson, signedContent.getBytes(StandardCharsets.UTF_8), signatureBytes); } else { throw new JwtException("Not a JWT token: " + tokenContent); } } private  SignedJwt(String tokenContent, JsonObject headerJson, JsonObject payloadJson, byte[] signedBytes, byte[] signature); static SignedJwt sign(Jwt jwt, JwkKeys jwks); static SignedJwt sign(Jwt jwt, Jwk jwk); static SignedJwt parseToken(String tokenContent); String tokenContent(); byte[] getSignedBytes(); byte[] getSignature(); Jwt getJwt(); Errors verifySignature(JwkKeys keys); Errors verifySignature(JwkKeys keys, Jwk defaultJwk);  }### Answer:
@Test public void testWrongToken() { assertThrows(Errors.ErrorMessagesException.class, () -> SignedJwt.parseToken(WRONG_TOKEN)); }