eliminate unchecked suppressions for randomFrom by adding safevarargs

Author: vamuzumd

test/framework/src/main/java/org/elasticsearch/test/ESTestCase.java

@@ -713,11 +713,15 @@ public static int randomInt(int max) {
     }
 
     /** Pick a random object from the given array. The array must not be empty. */
+    @SafeVarargs
+    @SuppressWarnings("varargs")
     public static <T> T randomFrom(T... array) {
         return randomFrom(random(), array);
     }
 
     /** Pick a random object from the given array. The array must not be empty. */
+    @SafeVarargs
+    @SuppressWarnings("varargs")
     public static <T> T randomFrom(Random random, T... array) {
         return RandomPicks.randomFrom(random, array);
     }

x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/ml/dataframe/analyses/ClassificationTests.java

@@ -89,7 +89,6 @@ protected NamedWriteableRegistry getNamedWriteableRegistry() {
         return new NamedWriteableRegistry(entries);
     }
 
-    @SuppressWarnings({"unchecked"})
     public static Classification createRandom() {
         String dependentVariableName = randomAlphaOfLength(10);
         BoostedTreeParams boostedTreeParams = BoostedTreeParamsTests.createRandom();

x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/ml/dataframe/analyses/RegressionTests.java

@@ -82,7 +82,6 @@ public static Regression createRandom() {
         return createRandom(BoostedTreeParamsTests.createRandom());
     }
 
-    @SuppressWarnings({"unchecked"})
     private static Regression createRandom(BoostedTreeParams boostedTreeParams) {
         String dependentVariableName = randomAlphaOfLength(10);
         String predictionFieldName = randomBoolean() ? null : randomAlphaOfLength(10);

x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/ml/inference/InferenceToXContentCompressorTests.java

@@ -22,7 +22,6 @@
 
 import static org.hamcrest.Matchers.equalTo;
 
-@SuppressWarnings({"unchecked"})
 public class InferenceToXContentCompressorTests extends ESTestCase {
 
     public void testInflateAndDeflate() throws IOException {

x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/ml/inference/NamedXContentObjectsTests.java

@@ -147,7 +147,6 @@ public void chooseStrictOrLenient() {
         lenient = randomBoolean();
     }
 
-    @SuppressWarnings({"unchecked"})
     @Override
     public NamedObjectContainer createTestInstance() {
         int max = randomIntBetween(1, 10);

x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/ml/inference/TrainedModelConfigTests.java

@@ -53,7 +53,6 @@ public class TrainedModelConfigTests extends AbstractBWCSerializationTestCase<Tr
 
     private boolean lenient;
 
-    @SuppressWarnings({"unchecked"})
     public static TrainedModelConfig.Builder createTestInstance(String modelId) {
         List<String> tags = Arrays.asList(generateRandomStringArray(randomIntBetween(0, 5), 15, false));
         return TrainedModelConfig.builder()
@@ -130,7 +129,6 @@ protected boolean assertToXContentEquivalence() {
         return false;
     }
 
-    @SuppressWarnings({"unchecked"})
     public void testToXContentWithParams() throws IOException {
         TrainedModelConfig.LazyModelDefinition lazyModelDefinition = TrainedModelConfig.LazyModelDefinition
             .fromParsedDefinition(TrainedModelDefinitionTests.createRandomBuilder().build());
@@ -170,8 +168,7 @@ public void testToXContentWithParams() throws IOException {
         assertThat(reference.utf8ToString(), containsString("\"definition\""));
         assertThat(reference.utf8ToString(), not(containsString("compressed_definition")));
     }
-
-    @SuppressWarnings({"unchecked"})
+    
     public void testParseWithBothDefinitionAndCompressedSupplied() throws IOException {
         TrainedModelConfig.LazyModelDefinition lazyModelDefinition = TrainedModelConfig.LazyModelDefinition
             .fromParsedDefinition(TrainedModelDefinitionTests.createRandomBuilder().build());

x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/ml/inference/TrainedModelDefinitionTests.java

@@ -59,7 +59,6 @@ protected boolean assertToXContentEquivalence() {
         return false;
     }
 
-    @SuppressWarnings({"unchecked"})
     public static TrainedModelDefinition.Builder createRandomBuilder(TargetType targetType) {
         int numberOfProcessors = randomIntBetween(1, 10);
         return new TrainedModelDefinition.Builder()

x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/ml/inference/preprocessing/MultiTests.java

@@ -46,7 +46,6 @@ public static Multi createRandom() {
         return createRandom(randomBoolean() ? null : randomBoolean());
     }
 
-    @SuppressWarnings("unchecked")
     public static Multi createRandom(Boolean isCustom) {
         final PreProcessor[] processors;
         if (isCustom == null || isCustom == false) {

x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/ml/inference/trainedmodel/ensemble/EnsembleTests.java

@@ -65,7 +65,6 @@ public static Ensemble createRandom(TargetType targetType) {
         return createRandom(targetType, featureNames);
     }
 
-    @SuppressWarnings({"unchecked"})
     public static Ensemble createRandom(TargetType targetType, List<String> featureNames) {
         int numberOfModels = randomIntBetween(1, 10);
         List<String> treeFeatureNames = featureNames.isEmpty() ?

x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/security/action/role/PutRoleRequestTests.java

@@ -131,7 +131,6 @@ private PutRoleRequest buildRequestWithApplicationPrivilege(String appName, Stri
         return request;
     }
 
-    @SuppressWarnings("unchecked")
     private PutRoleRequest buildRandomRequest() {
 
         final PutRoleRequest request = new PutRoleRequest();