Replace Object.finalize() with AutoClosable.close()

warehouse/query-core/src/main/java/datawave/core/iterators/DatawaveFieldIndexCachingIteratorJexl.java

@@ -73,7 +73,7 @@
  * <p>
  * Event key: CF, {datatype}\0{UID}
  */
-public abstract class DatawaveFieldIndexCachingIteratorJexl extends WrappingIterator {
+public abstract class DatawaveFieldIndexCachingIteratorJexl extends WrappingIterator implements AutoCloseable {
 
     public static final Text ANY_FINAME = new Text("fi\0" + Constants.ANY_FIELD);
     public static final Text FI_START = new Text("fi\0");
@@ -550,9 +550,8 @@ public void init(SortedKeyValueIterator<Key,Value> source, Map<String,String> op
     }
 
     @Override
-    protected void finalize() throws Throwable {
+    public void close() {
         clearRowBasedHdfsBackedSet();
-        super.finalize();
     }
 
     @Override
@@ -1286,7 +1285,7 @@ protected Path getRowDir(Path uniqueDir, String row) {
      * Clear out the current row-based hdfs backed set
      *
      */
-    protected void clearRowBasedHdfsBackedSet() {
+   protected void clearRowBasedHdfsBackedSet() {
         this.keys = null;
         this.currentRow = null;
         this.set = null;

warehouse/query-core/src/main/java/datawave/query/metrics/AccumuloRecordWriter.java

@@ -37,7 +37,7 @@
 import datawave.core.common.connection.AccumuloConnectionFactory.Priority;
 import datawave.core.common.util.EnvProvider;
 
-public class AccumuloRecordWriter extends RecordWriter<Text,Mutation> {
+public class AccumuloRecordWriter extends RecordWriter<Text,Mutation>  implements AutoCloseable{
     private MultiTableBatchWriter mtbw = null;
     private HashMap<Text,BatchWriter> bws = null;
     private Text defaultTableName = null;
@@ -241,9 +241,7 @@ public void close(TaskAttemptContext attempt) throws IOException, InterruptedExc
         }
     }
 
-    @Override
-    protected void finalize() throws Throwable {
-        super.finalize();
+    public void close() {
         returnConnector();
     }
 

warehouse/query-core/src/main/java/datawave/query/tables/facets/MergedReadAhead.java

@@ -24,7 +24,7 @@
  * stopped.
  */
 @SuppressWarnings("UnstableApiUsage")
-public class MergedReadAhead<T> extends AbstractExecutionThreadService implements Iterator<T>, Closeable {
+public class MergedReadAhead<T> extends AbstractExecutionThreadService implements Iterator<T>, AutoCloseable {
 
     private static final Logger log = Logger.getLogger(MergedReadAhead.class);
 
@@ -129,14 +129,6 @@ public void remove() {
         throw new UnsupportedOperationException();
     }
 
-    public void finalize() throws Throwable {
-        try {
-            close();
-        } finally {
-            super.finalize();
-        }
-    }
-
     @Override
     public void close() throws IOException {
         log.trace("stopping...");

warehouse/query-core/src/main/java/datawave/query/util/sortedmap/FileSortedMap.java

@@ -41,7 +41,7 @@
  * @param <V>
  *            value of the map
  */
-public abstract class FileSortedMap<K,V> implements SortedMap<K,V>, Cloneable, RewritableSortedMap<K,V> {
+public abstract class FileSortedMap<K,V> implements SortedMap<K,V>, Cloneable, RewritableSortedMap<K,V>, AutoCloseable{
     private static final Logger log = Logger.getLogger(FileSortedMap.class);
     protected boolean persisted;
     protected K[] range;
@@ -776,10 +776,9 @@ public void remove() {
             throw new UnsupportedOperationException("Iterator.remove() not supported on a persisted map.");
         }
 
-        @Override
-        protected void finalize() throws Throwable {
+
+        protected void close() throws Throwable {
             cleanup();
-            super.finalize();
         }
     }
 

warehouse/query-core/src/main/java/datawave/query/util/sortedset/FileSortedSet.java

@@ -762,12 +762,6 @@ public void remove() {
             throw new UnsupportedOperationException("Iterator.remove() not supported.");
         }
 
-        @Override
-        protected void finalize() throws Throwable {
-            cleanup();
-            super.finalize();
-        }
-
     }
 
     /**

web-services/metrics/src/main/java/datawave/query/metrics/ShardTableQueryMetricHandler.java

@@ -190,9 +190,7 @@ private void initialize() {
         }
     }
 
-    @Override
-    protected void finalize() throws Throwable {
-        super.finalize();
+    public void close() throws IOException, InterruptedException {
         this.recordWriter.close(null);
     }