Use Boolean instead of Object

1 files changed, 5 insertions, 6 deletions

diff --git a/messagebus/src/main/java/com/yahoo/messagebus/Sequencer.java b/messagebus/src/main/java/com/yahoo/messagebus/Sequencer.java
index 671e59dc7c9..f19d33c87b8 100644
--- a/messagebus/src/main/java/com/yahoo/messagebus/Sequencer.java
+++ b/messagebus/src/main/java/com/yahoo/messagebus/Sequencer.java
@@ -21,8 +21,7 @@ public class Sequencer implements MessageHandler, ReplyHandler {
     private final MessageHandler sender;
     private final Map<Long, Queue<Message>> seqMap = new HashMap<>();
     private final Messenger msn;
-    private final static Object BUSY = new Object();
-    private final static ThreadLocal<Object> isSending = new ThreadLocal<>();
+    private final static ThreadLocal<Boolean> isSending = new ThreadLocal<>();
 
     /**
      * Constructs a new sequencer on top of the given async sender.
@@ -163,15 +162,15 @@ public class Sequencer implements MessageHandler, ReplyHandler {
             }
         }
         if (msg != null) {
-            Object alreadySending = isSending.get();
-            if ((alreadySending == BUSY) && (msn != null)) {
+            Boolean alreadySending = isSending.get();
+            if ((alreadySending == Boolean.TRUE) && (msn != null)) {
                 // Dispatch in another thread to break possibly very long recursion.
                 msn.enqueue(new SequencedSendTask(msg));
             } else {
-                isSending.set(BUSY);
+                isSending.set(Boolean.TRUE);
                 sequencedSend(msg);
             }
-            isSending.set(null);
+            isSending.set(Boolean.FALSE);
         }
     }