upgrade mongo dependencies

build.gradle

@@ -118,7 +118,10 @@ dependencies {
 		exclude group: 'javax.servlet', module: 'servlet-api'  // 2.5 vs 3.0.1 above
 	}
 	implementation 'org.ini4j:ini4j:0.5.2'
-	implementation 'org.mongodb:mongo-java-driver:3.8.2'
+	implementation 'org.mongodb:mongodb-driver-core:4.11.1'
+	implementation 'org.mongodb:mongodb-driver-sync:4.11.1'
+	implementation 'org.mongodb:bson-record-codec:4.11.1'
+	implementation 'org.mongodb:bson:4.11.1'
 	implementation 'org.apache.kafka:kafka-clients:2.1.0'
 	implementation 'com.google.guava:guava:18.0'
 	implementation 'org.slf4j:slf4j-api:1.7.25'

src/main/java/us/kbase/groups/build/GroupsBuilder.java

@@ -9,8 +9,9 @@
 import org.slf4j.LoggerFactory;
 
 import com.google.common.collect.ImmutableMap;
-import com.mongodb.MongoClient;
-import com.mongodb.MongoClientOptions;
+import com.mongodb.client.MongoClient;
+import com.mongodb.client.MongoClients;
+import com.mongodb.MongoClientSettings;
 import com.mongodb.MongoCredential;
 import com.mongodb.MongoException;
 import com.mongodb.ServerAddress;
@@ -106,15 +107,16 @@ public GroupsBuilder(final GroupsConfig cfg, final MongoClient mc)
 
 	private MongoClient buildMongo(final GroupsConfig c) throws StorageInitException {
 		//TODO ZLATER MONGO handle shards & replica sets
+		final MongoClientSettings.Builder mongoBuilder = MongoClientSettings.builder().applyToClusterSettings(
+				builder -> builder.hosts(Arrays.asList(new ServerAddress(c.getMongoHost()))));
 		try {
 			if (c.getMongoUser().isPresent()) {
 				final MongoCredential creds = MongoCredential.createCredential(
 						c.getMongoUser().get(), c.getMongoDatabase(), c.getMongoPwd().get());
 				// unclear if and when it's safe to clear the password
-				return new MongoClient(new ServerAddress(c.getMongoHost()), creds,
-						MongoClientOptions.builder().build());
+				return MongoClients.create(mongoBuilder.credential(creds).build());
 			} else {
-				return new MongoClient(new ServerAddress(c.getMongoHost()));
+				return MongoClients.create(mongoBuilder.build());
 			}
 		} catch (MongoException e) {
 			LoggerFactory.getLogger(getClass()).error(

src/main/java/us/kbase/groups/service/GroupsService.java

@@ -4,7 +4,7 @@
 import org.glassfish.jersey.server.ResourceConfig;
 import org.slf4j.LoggerFactory;
 
-import com.mongodb.MongoClient;
+import com.mongodb.client.MongoClient;
 
 import ch.qos.logback.classic.Level;
 import ch.qos.logback.classic.Logger;

src/test/java/us/kbase/test/groups/MongoStorageTestManager.java

@@ -12,7 +12,8 @@
 import org.bson.Document;
 
 import com.github.zafarkhaja.semver.Version;
-import com.mongodb.MongoClient;
+import com.mongodb.client.MongoClient;
+import com.mongodb.client.MongoClients;
 import com.mongodb.client.MongoDatabase;
 
 import us.kbase.groups.core.resource.ResourceType;
@@ -39,7 +40,7 @@ public MongoStorageTestManager(final String dbName) throws Exception {
 		wiredTiger = TestCommon.useWiredTigerEngine();
 		System.out.println(String.format("Testing against mongo executable %s on port %s",
 				TestCommon.getMongoExe(), mongo.getServerPort()));
-		mc = new MongoClient("localhost:" + mongo.getServerPort());
+		mc = MongoClients.create("mongodb://localhost:" + mongo.getServerPort());
 		db = mc.getDatabase(dbName);
 
 		final Document bi = db.runCommand(new Document("buildinfo", 1));