Cleanup Deadcode in Rest Tests (#37418)

* Either dead code outright or redundant overrides removed

test/framework/src/main/java/org/elasticsearch/test/rest/ESRestTestCase.java

@@ -112,7 +112,7 @@ public abstract class ESRestTestCase extends ESTestCase {
     /**
      * Does any node in the cluster being tested have x-pack installed?
      */
-    public static boolean hasXPack() throws IOException {
+    public static boolean hasXPack() {
         if (hasXPack == null) {
             throw new IllegalStateException("must be called inside of a rest test case test");
         }
@@ -554,7 +554,7 @@ public abstract class ESRestTestCase extends ESTestCase {
         }
     }
 
-    private void wipeRollupJobs() throws IOException, InterruptedException {
+    private void wipeRollupJobs() throws IOException {
         Response response = adminClient().performRequest(new Request("GET", "/_rollup/job/_all"));
         Map<String, Object> jobs = entityAsMap(response);
         @SuppressWarnings("unchecked")
@@ -617,7 +617,7 @@ public abstract class ESRestTestCase extends ESTestCase {
      * Logs a message if there are still running tasks. The reasoning is that any tasks still running are state the is trying to bleed into
      * other tests.
      */
-    private void logIfThereAreRunningTasks() throws InterruptedException, IOException {
+    private void logIfThereAreRunningTasks() throws IOException {
         Set<String> runningTasks = runningTasks(adminClient().performRequest(new Request("GET", "/_tasks")));
         // Ignore the task list API - it doesn't count against us
         runningTasks.remove(ListTasksAction.NAME);

test/framework/src/main/java/org/elasticsearch/test/rest/FakeRestChannel.java

@@ -18,18 +18,12 @@
  */
 package org.elasticsearch.test.rest;
 
-import org.elasticsearch.common.Nullable;
-import org.elasticsearch.common.io.stream.BytesStreamOutput;
-import org.elasticsearch.common.xcontent.XContentBuilder;
-import org.elasticsearch.common.xcontent.XContentType;
 import org.elasticsearch.rest.AbstractRestChannel;
 import org.elasticsearch.rest.RestRequest;
 import org.elasticsearch.rest.RestResponse;
 import org.elasticsearch.rest.RestStatus;
 
-import java.io.IOException;
 import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicInteger;
 
 public final class FakeRestChannel extends AbstractRestChannel {
@@ -43,31 +37,6 @@ public final class FakeRestChannel extends AbstractRestChannel {
         this.latch = new CountDownLatch(responseCount);
     }
 
-    @Override
-    public XContentBuilder newBuilder() throws IOException {
-        return super.newBuilder();
-    }
-
-    @Override
-    public XContentBuilder newErrorBuilder() throws IOException {
-        return super.newErrorBuilder();
-    }
-
-    @Override
-    public XContentBuilder newBuilder(@Nullable XContentType requestContentType, boolean useFiltering) throws IOException {
-        return super.newBuilder(requestContentType, useFiltering);
-    }
-
-    @Override
-    protected BytesStreamOutput newBytesOutput() {
-        return super.newBytesOutput();
-    }
-
-    @Override
-    public RestRequest request() {
-        return super.request();
-    }
-
     @Override
     public void sendResponse(RestResponse response) {
         this.capturedRestResponse = response;
@@ -83,10 +52,6 @@ public final class FakeRestChannel extends AbstractRestChannel {
         return capturedRestResponse;
     }
 
-    public boolean await() throws InterruptedException {
-        return latch.await(10, TimeUnit.SECONDS);
-    }
-
     public AtomicInteger responses() {
         return responses;
     }

test/framework/src/main/java/org/elasticsearch/test/rest/yaml/ESClientYamlSuiteTestCase.java

@@ -319,26 +319,6 @@ public abstract class ESClientYamlSuiteTestCase extends ESRestTestCase {
         return new Tuple<>(version, masterVersion);
     }
 
-    private static Version readVersionsFromInfo(RestClient restClient, int numHosts) throws IOException {
-        Version version = null;
-        for (int i = 0; i < numHosts; i++) {
-            //we don't really use the urls here, we rely on the client doing round-robin to touch all the nodes in the cluster
-            Response response = restClient.performRequest(new Request("GET", "/"));
-            ClientYamlTestResponse restTestResponse = new ClientYamlTestResponse(response);
-            Object latestVersion = restTestResponse.evaluate("version.number");
-            if (latestVersion == null) {
-                throw new RuntimeException("elasticsearch version not found in the response");
-            }
-            final Version currentVersion = Version.fromString(latestVersion.toString());
-            if (version == null) {
-                version = currentVersion;
-            } else if (version.onOrAfter(currentVersion)) {
-                version = currentVersion;
-            }
-        }
-        return version;
-    }
-
     public void test() throws IOException {
         //skip test if it matches one of the blacklist globs
         for (BlacklistedPathPatternMatcher blacklistedPathMatcher : blacklistPathMatchers) {

test/framework/src/main/java/org/elasticsearch/test/rest/yaml/Features.java

@@ -19,7 +19,6 @@
 
 package org.elasticsearch.test.rest.yaml;
 
-import java.io.IOException;
 import java.util.Arrays;
 import java.util.List;
 
@@ -58,7 +57,6 @@ public final class Features {
      * Tells whether all the features provided as argument are supported
      */
     public static boolean areAllSupported(List<String> features) {
-        try {
         for (String feature : features) {
             if (feature.equals("xpack")) {
                 if (false == ESRestTestCase.hasXPack()) {
@@ -73,8 +71,5 @@ public final class Features {
             }
         }
         return true;
-        } catch (IOException e) {
-            throw new RuntimeException("error checking if xpack is available", e);
-        }
     }
 }