fix checkstyle issue

Author: Apache9

hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java

@@ -7567,12 +7567,8 @@ private List<Cell> getInternal(Get get, boolean withCoprocessor, long nonceGroup
     if (scan.getLoadColumnFamiliesOnDemandValue() == null) {
       scan.setLoadColumnFamiliesOnDemand(isLoadingCfsOnDemandDefault());
     }
-    RegionScanner scanner = null;
-    try {
-      scanner = getScanner(scan, null, nonceGroup, nonce);
+    try (RegionScanner scanner = getScanner(scan, null, nonceGroup, nonce)) {
       scanner.next(results);
-    } finally {
-      if (scanner != null) scanner.close();
     }
 
     // post-get CP hook

hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionScannerImpl.java

@@ -731,21 +731,23 @@ protected boolean shouldStop(Cell currentRowCell) {
     return c > 0 || (c == 0 && !includeStopRow);
   }
 
+  private void closeInternal() {
+    if (storeHeap != null) {
+      storeHeap.close();
+      storeHeap = null;
+    }
+    if (joinedHeap != null) {
+      joinedHeap.close();
+      joinedHeap = null;
+    }
+    // no need to synchronize here.
+    scannerReadPoints.remove(this);
+    this.filterClosed = true;
+  }
+
   @Override
   public synchronized void close() {
-    TraceUtil.trace(() -> {
-      if (storeHeap != null) {
-        storeHeap.close();
-        storeHeap = null;
-      }
-      if (joinedHeap != null) {
-        joinedHeap.close();
-        joinedHeap = null;
-      }
-      // no need to synchronize here.
-      scannerReadPoints.remove(this);
-      this.filterClosed = true;
-    }, () -> region.createRegionSpan("RegionScanner.close"));
+    TraceUtil.trace(this::closeInternal, () -> region.createRegionSpan("RegionScanner.close"));
   }
 
   @Override