Fixes

Author: katcharov

driver-core/src/main/com/mongodb/client/model/expressions/ArrayExpression.java

@@ -85,7 +85,7 @@ default ArrayExpression<T> slice(final int start, final int length) {
         return this.slice(of(start), of(length));
     }
 
-    ArrayExpression<T> setUnion(ArrayExpression<T> set);
+    ArrayExpression<T> union(ArrayExpression<T> set);
 
     ArrayExpression<T> distinct();
 }

driver-core/src/main/com/mongodb/client/model/expressions/MqlExpression.java

@@ -245,7 +245,7 @@ public ArrayExpression<T> slice(final IntegerExpression start, final IntegerExpr
     }
 
     @Override
-    public ArrayExpression<T> setUnion(final ArrayExpression<T> set) {
+    public ArrayExpression<T> union(final ArrayExpression<T> set) {
         return new MqlExpression<>(ast("$setUnion", set))
                 .assertImplementsAllExpressions();
     }

driver-core/src/test/functional/com/mongodb/client/model/expressions/ArrayExpressionsFunctionalTest.java

@@ -33,7 +33,6 @@
 import static com.mongodb.client.model.expressions.Expressions.ofIntegerArray;
 import static com.mongodb.client.model.expressions.Expressions.ofNumberArray;
 import static com.mongodb.client.model.expressions.Expressions.ofStringArray;
-import static org.testng.internal.collections.Ints.asList;
 
 @SuppressWarnings({"ConstantConditions", "Convert2MethodRef"})
 class ArrayExpressionsFunctionalTest extends AbstractExpressionsFunctionalTest {
@@ -196,7 +195,7 @@ public void firstTest() {
         // https://www.mongodb.com/docs/manual/reference/operator/aggregation/first/
         // https://www.mongodb.com/docs/manual/reference/operator/aggregation/first-array-element/
         assertExpression(
-                new LinkedList<>(asList(1, 2, 3)).getFirst(),
+                new LinkedList<>(Arrays.asList(1, 2, 3)).getFirst(),
                 array123.first(),
                 // MQL:
                 "{'$first': [[1, 2, 3]]}");
@@ -206,7 +205,7 @@ public void firstTest() {
     public void lastTest() {
         // https://www.mongodb.com/docs/manual/reference/operator/aggregation/last-array-element/
         assertExpression(
-                new LinkedList<>(asList(1, 2, 3)).getLast(),
+                new LinkedList<>(Arrays.asList(1, 2, 3)).getLast(),
                 array123.last(),
                 // MQL:
                 "{'$last': [[1, 2, 3]]}");
@@ -262,7 +261,7 @@ public void setUnionTest() {
         // https://www.mongodb.com/docs/manual/reference/operator/aggregation/setUnion/ (40)
         assertExpression(
                 Arrays.asList(1, 2, 3),
-                array123.setUnion(array123),
+                array123.union(array123),
                 // MQL:
                 "{'$setUnion': [[1, 2, 3], [1, 2, 3]]}");
         // convenience