java.net.UnknownServiceException when using Google Maps Java API

Question

I'm trying to access Google Maps from my Java code as follows:

GeoApiContext context = new GeoApiContext.Builder().apiKey("API_KEY_HERE").build();
//Setting variables...
DistanceMatrix matrix = DistanceMatrixApi.newRequest(context).origins(origins).destinations(destinations).await();

Calling await() throws an exception:

java.net.UnknownServiceException: Unable to find acceptable protocols. isFallback=false, modes=[ConnectionSpec(cipherSuites=[TLS_AES_128_GCM_SHA256, TLS_AES_256_GCM_SHA384, TLS_CHACHA20_POLY1305_SHA256, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_256_GCM_SHA384, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, SSL_RSA_WITH_3DES_EDE_CBC_SHA], tlsVersions=[TLS_1_3, TLS_1_2], supportsTlsExtensions=true), ConnectionSpec()], supported protocols=[TLSv1]

I gather this is coming from the OkHttp library used by Google Maps and that it has something to do with the TLS version, but I have no idea what to do to address it. All of the test cases in the source code use a mock web server and there are no examples of specifying a real server, leading me to believe that it was done under the hood.

Does anyone have example code for using the Google Maps Java API with a real web server?

My JVM (from System.getProperty("java.version")) is 1.8.0_221. — Brendan McCauley
– Brendan McCauley, Commented Dec 8, 2019 at 13:46

Jesse Wilson · Accepted Answer · 2019-12-07 18:47:22Z

2

Your JVM isn't configured to use a new-enough version of TLS.

supported protocols=[TLSv1]

Make sure your JVM is 8 or newer and up-to-date. Also make sure any custom security providers (bouncycastle) are up to date.

answered Dec 7, 2019 at 18:47

Jesse Wilson

40.8k8 gold badges132 silver badges134 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

Brendan McCauley Over a year ago

My JVM (from System.getProperty("java.version")) is 1.8.0_221. I have not been able to find anything that might be overriding this. jdk.tls.client.protocols is null, which I understand should default Java 8 to TLS 1.2. Is there another way to check what's affecting the choice of TLS versions?

Jesse Wilson Over a year ago

Does it connect okay in a test case, or a main method with no other libraries? Looks like something is changing defaults on you.

Brendan McCauley Over a year ago

I"ve confirmed that the minimal example works in a new project in the same Eclipse workspace.

Brendan McCauley Over a year ago

(The exact same code fails with the TLS error in the existing project.)

Brendan McCauley Over a year ago

Furthermore, if I manually create an SSLSocket and call getEnabledProtocols(), I see TLS 1, 1.1, and 1.2. Something is affecting specifically the protocols visible to the Google Maps code.

Pranali Kurumkar · Accepted Answer · 2022-10-27 10:36:39Z

0

This error is might be because of the version of okhttp3 library try to use different version of okhttp3.

answered Oct 27, 2022 at 10:36

Pranali Kurumkar

111 bronze badge

Collectives™ on Stack Overflow

java.net.UnknownServiceException when using Google Maps Java API

2 Answers 2

5 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

5 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related