Remove unused imports

Author: dnhatn

plugins/analysis-icu/src/main/java/org/elasticsearch/index/analysis/IcuTokenizerFactory.java

@@ -22,7 +22,6 @@
 import com.ibm.icu.lang.UCharacter;
 import com.ibm.icu.lang.UProperty;
 import com.ibm.icu.lang.UScript;
-import com.ibm.icu.text.BreakIterator;
 import com.ibm.icu.text.RuleBasedBreakIterator;
 import org.apache.lucene.analysis.Tokenizer;
 import org.apache.lucene.analysis.icu.segmentation.DefaultICUTokenizerConfig;

server/src/main/java/org/elasticsearch/index/mapper/FieldNamesFieldMapper.java

@@ -24,7 +24,6 @@
 import org.apache.lucene.index.IndexableField;
 import org.apache.lucene.search.Query;
 import org.elasticsearch.Version;
-import org.elasticsearch.cluster.metadata.IndexMetaData;
 import org.elasticsearch.common.logging.DeprecationLogger;
 import org.elasticsearch.common.logging.ESLoggerFactory;
 import org.elasticsearch.common.lucene.Lucene;

server/src/main/java/org/elasticsearch/indices/IndicesService.java

@@ -104,7 +104,6 @@
 import org.elasticsearch.indices.mapper.MapperRegistry;
 import org.elasticsearch.indices.recovery.PeerRecoveryTargetService;
 import org.elasticsearch.indices.recovery.RecoveryState;
-import org.elasticsearch.plugins.EnginePlugin;
 import org.elasticsearch.plugins.PluginsService;
 import org.elasticsearch.repositories.RepositoriesService;
 import org.elasticsearch.script.ScriptService;

server/src/main/java/org/elasticsearch/indices/flush/SyncedFlushService.java

@@ -19,7 +19,6 @@
 package org.elasticsearch.indices.flush;
 
 import org.apache.logging.log4j.message.ParameterizedMessage;
-import org.elasticsearch.Assertions;
 import org.elasticsearch.ElasticsearchException;
 import org.elasticsearch.Version;
 import org.elasticsearch.action.ActionListener;

server/src/test/java/org/elasticsearch/index/engine/InternalEngineTests.java

@@ -1405,7 +1405,7 @@ public void testForceMergeWithSoftDeletesRetentionAndRecoverySource() throws Exc
         final boolean omitSourceAllTheTime = randomBoolean();
         final Set<String> liveDocs = new HashSet<>();
         try (Store store = createStore();
-             Engine engine = createEngine(config(indexSettings, store, createTempDir(), newMergePolicy(), null, null,
+             InternalEngine engine = createEngine(config(indexSettings, store, createTempDir(), newMergePolicy(), null, null,
                  globalCheckpoint::get))) {
             int numDocs = scaledRandomIntBetween(10, 100);
             for (int i = 0; i < numDocs; i++) {

server/src/test/java/org/elasticsearch/index/engine/RecoverySourcePruneMergePolicyTests.java

@@ -37,7 +37,6 @@
 import org.apache.lucene.index.StandardDirectoryReader;
 import org.apache.lucene.index.Term;
 import org.apache.lucene.search.DocIdSetIterator;
-import org.apache.lucene.search.MatchAllDocsQuery;
 import org.apache.lucene.search.MatchNoDocsQuery;
 import org.apache.lucene.search.TermQuery;
 import org.apache.lucene.store.Directory;

server/src/test/java/org/elasticsearch/snapshots/SharedClusterSnapshotRestoreIT.java

@@ -76,7 +76,6 @@
 import org.elasticsearch.core.internal.io.IOUtils;
 import org.elasticsearch.index.Index;
 import org.elasticsearch.index.IndexService;
-import org.elasticsearch.index.IndexSettings;
 import org.elasticsearch.index.engine.Engine;
 import org.elasticsearch.index.engine.EngineTestCase;
 import org.elasticsearch.index.shard.IndexShard;
@@ -123,7 +122,6 @@
 import static org.elasticsearch.common.xcontent.XContentFactory.jsonBuilder;
 import static org.elasticsearch.index.IndexSettings.INDEX_REFRESH_INTERVAL_SETTING;
 import static org.elasticsearch.index.IndexSettings.INDEX_SOFT_DELETES_SETTING;
-import static org.elasticsearch.index.IndexSettings.INDEX_SOFT_DELETES_SETTING;
 import static org.elasticsearch.index.query.QueryBuilders.matchQuery;
 import static org.elasticsearch.index.shard.IndexShardTests.getEngineFromShard;
 import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcked;

x-pack/plugin/ccr/src/main/java/org/elasticsearch/xpack/ccr/CcrSettings.java

@@ -9,7 +9,6 @@
 import org.elasticsearch.common.settings.Setting.Property;
 
 import java.util.Arrays;
-import java.util.Collections;
 import java.util.List;
 
 /**

x-pack/plugin/ccr/src/main/java/org/elasticsearch/xpack/ccr/action/ShardFollowTask.java

@@ -14,7 +14,6 @@
 import org.elasticsearch.common.xcontent.XContentBuilder;
 import org.elasticsearch.common.xcontent.XContentParser;
 import org.elasticsearch.index.shard.ShardId;
-import org.elasticsearch.persistent.PersistentTaskParams;
 import org.elasticsearch.xpack.core.XPackPlugin;
 
 import java.io.IOException;

x-pack/plugin/ccr/src/main/java/org/elasticsearch/xpack/ccr/action/bulk/BulkShardOperationsAction.java

@@ -6,7 +6,6 @@
 package org.elasticsearch.xpack.ccr.action.bulk;
 
 import org.elasticsearch.action.Action;
-import org.elasticsearch.client.ElasticsearchClient;
 
 public class BulkShardOperationsAction
         extends Action<BulkShardOperationsRequest, BulkShardOperationsResponse> {

x-pack/plugin/ccr/src/main/java/org/elasticsearch/xpack/ccr/index/engine/FollowingEngineFactory.java

@@ -8,7 +8,6 @@
 import org.elasticsearch.index.engine.Engine;
 import org.elasticsearch.index.engine.EngineConfig;
 import org.elasticsearch.index.engine.EngineFactory;
-import org.elasticsearch.index.engine.InternalEngine;
 
 /**
  * An engine factory for following engines.

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/ccr/ShardChangesIT.java

@@ -28,7 +28,6 @@
 import org.elasticsearch.test.ESIntegTestCase;
 import org.elasticsearch.test.MockHttpTransport;
 import org.elasticsearch.test.discovery.TestZenDiscovery;
-import org.elasticsearch.test.junit.annotations.TestLogging;
 import org.elasticsearch.xpack.ccr.action.CreateAndFollowIndexAction;
 import org.elasticsearch.xpack.ccr.action.FollowIndexAction;
 import org.elasticsearch.xpack.ccr.action.ShardChangesAction;
@@ -213,11 +212,11 @@ public void testSyncMappings() throws Exception {
             Collections.singletonMap(IndexSettings.INDEX_SOFT_DELETES_SETTING.getKey(), "true"));
         assertAcked(client().admin().indices().prepareCreate("index1").setSource(leaderIndexSettings, XContentType.JSON));
         ensureGreen("index1");
-    
+
         final FollowIndexAction.Request followRequest = new FollowIndexAction.Request();
         followRequest.setLeaderIndex("index1");
         followRequest.setFollowIndex("index2");
-    
+
         final CreateAndFollowIndexAction.Request createAndFollowRequest = new CreateAndFollowIndexAction.Request();
         createAndFollowRequest.setFollowRequest(followRequest);
         client().execute(CreateAndFollowIndexAction.INSTANCE, createAndFollowRequest).get();

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/ccr/action/ShardChangesRequestTests.java

@@ -5,7 +5,6 @@
  */
 package org.elasticsearch.xpack.ccr.action;
 
-import org.elasticsearch.index.seqno.SequenceNumbers;
 import org.elasticsearch.index.shard.ShardId;
 import org.elasticsearch.test.AbstractStreamableTestCase;
 

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/ccr/action/bulk/BulkShardOperationsTests.java

@@ -8,16 +8,11 @@
 
 import org.apache.lucene.index.Term;
 import org.elasticsearch.action.support.replication.TransportWriteAction;
-import org.elasticsearch.cluster.routing.RecoverySource;
-import org.elasticsearch.cluster.routing.ShardRouting;
-import org.elasticsearch.cluster.routing.ShardRoutingState;
-import org.elasticsearch.cluster.routing.TestShardRouting;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.index.VersionType;
 import org.elasticsearch.index.mapper.Uid;
 import org.elasticsearch.index.shard.IndexShard;
 import org.elasticsearch.index.shard.IndexShardTestCase;
-import org.elasticsearch.index.shard.ShardId;
 import org.elasticsearch.index.translog.Translog;
 import org.elasticsearch.xpack.ccr.CcrSettings;
 import org.elasticsearch.xpack.ccr.index.engine.FollowingEngineFactory;