Move this logger definition

Author: joegallo

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/security/authz/accesscontrol/DocumentSubsetBitsetCache.java

@@ -81,6 +81,8 @@
  */
 public final class DocumentSubsetBitsetCache implements IndexReader.ClosedListener, Closeable, Accountable {
 
+    private static final Logger logger = LogManager.getLogger(DocumentSubsetBitsetCache.class);
+
     /**
      * The TTL defaults to 2 hours. We default to a large cache size ({@link #CACHE_SIZE_SETTING}), and aggressively
      * expire unused entries so that the cache does not hold on to memory unnecessarily.
@@ -102,8 +104,6 @@ public final class DocumentSubsetBitsetCache implements IndexReader.ClosedListen
 
     private static final BitSet NULL_MARKER = new FixedBitSet(0);
 
-    private static final Logger logger = LogManager.getLogger(DocumentSubsetBitsetCache.class);
-
     /**
      * When a {@link BitSet} is evicted from {@link #bitsetCache}, we need to also remove it from {@link #keysByIndex}.
      * We use a {@link ReentrantReadWriteLock} to control atomicity here - the "read" side represents potential insertions to the