Remove -Xlint:-deprecated from test/framwork

There were a few uses of deprecation I couldn't clear up quickly so I filed
issues for them and suppressed the warnings.

test/framework/build.gradle

@@ -33,7 +33,7 @@ dependencies {
   compile 'org.elasticsearch:securemock:1.2'
 }
 
-compileJava.options.compilerArgs << '-Xlint:-cast,-deprecation,-rawtypes,-serial,-try,-unchecked'
+compileJava.options.compilerArgs << '-Xlint:-cast,-rawtypes,-serial,-try,-unchecked'
 compileTestJava.options.compilerArgs << '-Xlint:-rawtypes'
 
 // the main files are actually test files, so use the appopriate forbidden api sigs

test/framework/src/main/java/org/elasticsearch/common/io/PathUtilsForTesting.java

@@ -23,21 +23,22 @@ import org.apache.lucene.util.LuceneTestCase;
 
 import java.nio.file.FileSystem;
 
-/** 
- * Exposes some package private stuff in PathUtils for framework purposes only! 
+/**
+ * Exposes some package private stuff in PathUtils for framework purposes only!
  */
 public class PathUtilsForTesting {
-    
+
     /** Sets a new default filesystem for testing */
+    @SuppressWarnings("deprecation") // https://github.com/elastic/elasticsearch/issues/15845
     public static void setup() {
         installMock(LuceneTestCase.getBaseTempDirForTestClass().getFileSystem());
     }
-    
+
     /** Installs a mock filesystem for testing */
     public static void installMock(FileSystem mock) {
         PathUtils.DEFAULT = mock;
     }
-    
+
     /** Resets filesystem back to the real system default */
     public static void teardown() {
         PathUtils.DEFAULT = PathUtils.ACTUAL_DEFAULT;

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

@@ -24,6 +24,7 @@ import com.carrotsearch.randomizedtesting.SysGlobals;
 import com.carrotsearch.randomizedtesting.generators.RandomInts;
 import com.carrotsearch.randomizedtesting.generators.RandomPicks;
 import com.carrotsearch.randomizedtesting.generators.RandomStrings;
+
 import org.apache.lucene.store.StoreRateLimiting;
 import org.apache.lucene.util.IOUtils;
 import org.elasticsearch.ElasticsearchException;
@@ -117,7 +118,6 @@ import java.util.function.Predicate;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
-import static junit.framework.Assert.fail;
 import static org.apache.lucene.util.LuceneTestCase.TEST_NIGHTLY;
 import static org.apache.lucene.util.LuceneTestCase.rarely;
 import static org.elasticsearch.common.settings.Settings.settingsBuilder;
@@ -127,6 +127,7 @@ import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.greaterThan;
 import static org.hamcrest.Matchers.greaterThanOrEqualTo;
 import static org.junit.Assert.assertThat;
+import static org.junit.Assert.fail;
 
 /**
  * InternalTestCluster manages a set of JVM private nodes and allows convenient access to them.
@@ -1045,6 +1046,7 @@ public final class InternalTestCluster extends TestCluster {
         }
     }
 
+    @SuppressWarnings("deprecation") // https://github.com/elastic/elasticsearch/issues/15844
     private void randomlyResetClients() throws IOException {
         // only reset the clients on nightly tests, it causes heavy load...
         if (RandomizedTest.isNightly() && rarely(random)) {

test/framework/src/main/java/org/elasticsearch/test/disruption/LongGCDisruption.java

@@ -75,6 +75,7 @@ public class LongGCDisruption extends SingleNodeDisruption {
         return TimeValue.timeValueMillis(0);
     }
 
+    @SuppressWarnings("deprecation") // stops/resumes threads intentionally
     @SuppressForbidden(reason = "stops/resumes threads intentionally")
     protected boolean stopNodeThreads(String node, Set<Thread> nodeThreads) {
         Thread[] allThreads = null;
@@ -118,6 +119,7 @@ public class LongGCDisruption extends SingleNodeDisruption {
         return stopped;
     }
 
+    @SuppressWarnings("deprecation") // stops/resumes threads intentionally
     @SuppressForbidden(reason = "stops/resumes threads intentionally")
     protected void resumeThreads(Set<Thread> threads) {
         for (Thread thread : threads) {

test/framework/src/main/java/org/elasticsearch/test/hamcrest/ElasticsearchAssertions.java

@@ -513,9 +513,9 @@ public class ElasticsearchAssertions {
     public static <T extends Query> T assertBooleanSubQuery(Query query, Class<T> subqueryType, int i) {
         assertThat(query, instanceOf(BooleanQuery.class));
         BooleanQuery q = (BooleanQuery) query;
-        assertThat(q.getClauses().length, greaterThan(i));
-        assertThat(q.getClauses()[i].getQuery(), instanceOf(subqueryType));
-        return (T) q.getClauses()[i].getQuery();
+        assertThat(q.clauses().size(), greaterThan(i));
+        assertThat(q.clauses().get(i).getQuery(), instanceOf(subqueryType));
+        return subqueryType.cast(q.clauses().get(i).getQuery());
     }
 
     /**

test/framework/src/main/java/org/elasticsearch/test/store/MockFSDirectoryService.java

@@ -21,6 +21,7 @@ package org.elasticsearch.test.store;
 
 import com.carrotsearch.randomizedtesting.SeedUtils;
 import com.carrotsearch.randomizedtesting.generators.RandomPicks;
+
 import org.apache.lucene.index.CheckIndex;
 import org.apache.lucene.index.IndexWriter;
 import org.apache.lucene.store.BaseDirectoryWrapper;
@@ -105,6 +106,7 @@ public class MockFSDirectoryService extends FsDirectoryService {
         throw new UnsupportedOperationException();
     }
 
+    @SuppressWarnings("deprecation") // https://github.com/elastic/elasticsearch/issues/15846
     public static void checkIndex(ESLogger logger, Store store, ShardId shardId) {
         if (store.tryIncRef()) {
             logger.info("start check index");