diff --git a/jetty-io/src/main/java/org/eclipse/jetty/io/FillInterest.java b/jetty-io/src/main/java/org/eclipse/jetty/io/FillInterest.java
index 4b663413097..fb9de205c96 100644
--- a/jetty-io/src/main/java/org/eclipse/jetty/io/FillInterest.java
+++ b/jetty-io/src/main/java/org/eclipse/jetty/io/FillInterest.java
@@ -21,8 +21,6 @@ package org.eclipse.jetty.io;
 import java.io.IOException;
 import java.nio.channels.ClosedChannelException;
 import java.nio.channels.ReadPendingException;
-import java.text.SimpleDateFormat;
-import java.util.Date;
 import java.util.concurrent.atomic.AtomicReference;
 
 import org.eclipse.jetty.util.Callback;
@@ -129,7 +127,7 @@ public abstract class FillInterest
     public boolean onFail(Throwable cause)
     {
         if (LOG.isDebugEnabled())
-            LOG.debug("onFail {} {}",this,cause);
+            LOG.debug("onFail " + this, cause);
         Callback callback = _interested.get();
         if (callback != null && _interested.compareAndSet(callback, null))
         {
diff --git a/jetty-io/src/main/java/org/eclipse/jetty/io/WriteFlusher.java b/jetty-io/src/main/java/org/eclipse/jetty/io/WriteFlusher.java
index 1efc5a71d64..7f7c6070051 100644
--- a/jetty-io/src/main/java/org/eclipse/jetty/io/WriteFlusher.java
+++ b/jetty-io/src/main/java/org/eclipse/jetty/io/WriteFlusher.java
@@ -479,12 +479,12 @@ abstract public class WriteFlusher
                 case IDLE:
                 case FAILED:
                     if (DEBUG)
-                        LOG.debug("ignored: {} {}", this, cause);
+                        LOG.debug("ignored: " + this, cause);
                     return false;
 
                 case PENDING:
                     if (DEBUG)
-                        LOG.debug("failed: {} {}", this, cause);
+                        LOG.debug("failed: " + this, cause);
 
                     PendingState pending = (PendingState)current;
                     if (updateState(pending,__IDLE))
@@ -493,7 +493,7 @@ abstract public class WriteFlusher
 
                 default:
                     if (DEBUG)
-                        LOG.debug("failed: {} {}", this, cause);
+                        LOG.debug("failed: " + this, cause);
 
                     if (updateState(current,new FailedState(cause)))
                         return false;