diff -r 8c0b6bccfe47 -r 0989ad8c0860 src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/WeakDataFile.java
--- a/src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/WeakDataFile.java	Thu Apr 04 19:05:24 2013 -0700
+++ b/src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/WeakDataFile.java	Tue Apr 09 14:51:13 2013 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -33,6 +33,7 @@
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.Executor;
+import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
@@ -53,16 +54,20 @@
     static {
         CleanUpExecutorFactory executorFactory = CleanUpExecutorFactory.newInstance();
         if (executorFactory!=null) {
-            LOGGER.fine("Initializing clean up executor for MIMEPULL: "
-                    + executorFactory.getClass().getName());
+            if (LOGGER.isLoggable(Level.FINE)) {
+                LOGGER.log(Level.FINE, "Initializing clean up executor for MIMEPULL: {0}", executorFactory.getClass().getName());
+            }
             Executor executor = executorFactory.getExecutor();
             executor.execute(new Runnable() {
+                @Override
                 public void run() {
-                    WeakDataFile weak = null;
+                    WeakDataFile weak;
                     while (true) {
                         try {
                             weak = (WeakDataFile) refQueue.remove();
-                            LOGGER.fine("Cleaning file = "+weak.file+" from reference queue.");
+                            if (LOGGER.isLoggable(Level.FINE)) {
+                                LOGGER.log(Level.FINE, "Cleaning file = {0} from reference queue.", weak.file);
+                            }
                             weak.close();
                         } catch (InterruptedException e) {
                         }
@@ -107,22 +112,36 @@
     }
 
     void close() {
-        LOGGER.fine("Deleting file = "+file.getName());
+        if (LOGGER.isLoggable(Level.FINE)) {
+            LOGGER.log(Level.FINE, "Deleting file = {0}", file.getName());
+        }
         refList.remove(this);
         try {
             raf.close();
-            file.delete();
+            boolean deleted = file.delete();
+            if (!deleted) {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.log(Level.INFO, "File {0} was not deleted", file.getAbsolutePath());
+                }
+            }
         } catch(IOException ioe) {
             throw new MIMEParsingException(ioe);
         }
     }
 
     void renameTo(File f) {
-        LOGGER.fine("Moving file="+file+" to="+f);
+        if (LOGGER.isLoggable(Level.FINE)) {
+            LOGGER.log(Level.FINE, "Moving file={0} to={1}", new Object[]{file, f});
+        }
         refList.remove(this);
         try {
             raf.close();
-            file.renameTo(f);
+            boolean renamed = file.renameTo(f);
+            if (!renamed) {
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.log(Level.INFO, "File {0} was not moved to {1}", new Object[] {file.getAbsolutePath(), f.getAbsolutePath()});
+                }
+            }
         } catch(IOException ioe) {
             throw new MIMEParsingException(ioe);
         }
@@ -130,9 +149,11 @@
     }
 
     static void drainRefQueueBounded() {
-        WeakDataFile weak = null;
+        WeakDataFile weak;
         while (( weak = (WeakDataFile) refQueue.poll()) != null ) {
-            LOGGER.fine("Cleaning file = "+weak.file+" from reference queue.");
+            if (LOGGER.isLoggable(Level.FINE)) {
+                LOGGER.log(Level.FINE, "Cleaning file = {0} from reference queue.", weak.file);
+            }
             weak.close();
         }
     }