sebastien-doyon commented on code in PR #1269:
URL: https://github.com/apache/maven/pull/1269#discussion_r1365248238


##########
maven-embedder/src/main/java/org/apache/maven/cli/transfer/ConsoleMavenTransferListener.java:
##########
@@ -135,7 +136,7 @@ public synchronized void transferFailed(TransferEvent 
event) {
 
     private void overridePreviousTransfer(TransferEvent event) {
         if (lastLength > 0) {
-            StringBuilder buffer = new StringBuilder(128);
+            StringBuilder buffer = new StringBuilder(lastLength + 1);

Review Comment:
   Yes this is true, I also noticed that the synchronized block at line 71 is 
not needed since the transferProgressed() method is synchronized already and 
synchronising on an instance var have the same effect. 



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