JAVA-2628: Add "3" to the list of valid 2dsphere index versions.

Author: jyemin

driver-core/src/main/com/mongodb/bulk/IndexRequest.java

@@ -35,7 +35,7 @@
 public class IndexRequest {
     private final BsonDocument keys;
     private static final List<Integer> VALID_TEXT_INDEX_VERSIONS = asList(1, 2, 3);
-    private static final List<Integer> VALID_SPHERE_INDEX_VERSIONS = asList(1, 2);
+    private static final List<Integer> VALID_SPHERE_INDEX_VERSIONS = asList(1, 2, 3);
     private boolean background;
     private boolean unique;
     private String name;
@@ -323,7 +323,7 @@ public Integer getSphereVersion() {
      */
     public IndexRequest sphereVersion(final Integer sphereVersion) {
         if (sphereVersion != null) {
-            isTrueArgument("sphereIndexVersion must be 1 or 2", VALID_SPHERE_INDEX_VERSIONS.contains(sphereVersion));
+            isTrueArgument("sphereIndexVersion must be 1, 2 or 3", VALID_SPHERE_INDEX_VERSIONS.contains(sphereVersion));
         }
         this.sphereVersion = sphereVersion;
         return this;

driver-core/src/test/unit/com/mongodb/IndexRequestSpecification.groovy

@@ -17,10 +17,10 @@
 package com.mongodb
 
 import com.mongodb.bulk.IndexRequest
+import com.mongodb.client.model.Collation
 import com.mongodb.client.model.CollationAlternate
 import com.mongodb.client.model.CollationCaseFirst
 import com.mongodb.client.model.CollationMaxVariable
-import com.mongodb.client.model.Collation
 import com.mongodb.client.model.CollationStrength
 import org.bson.BsonDocument
 import org.bson.BsonInt32
@@ -165,6 +165,12 @@ class IndexRequestSpecification extends Specification {
         when:
         options.sphereVersion(3)
 
+        then:
+        notThrown(IllegalArgumentException)
+
+        when:
+        options.sphereVersion(4)
+
         then:
         thrown(IllegalArgumentException)
     }