[FIXED JENKINS-10805] preserve the timestampa as well as permissions

changelog.html

@@ -61,6 +61,9 @@ Upcoming changes</a>
   <li class=bug>
     Fixed NPE in running <tt>assembly:assembly</tt> with Maven3
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-8837">issue 8837</a>)
+  <li class=bug>
+    Fixed a bug in one of the file copy operations that caused the copy-artifact plugin to fail to preserve the timestamp.
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-10805">issue 10805</a>)
 </ul>
 </div><!--=TRUNK-END=-->
 

core/src/main/java/hudson/FilePath.java

@@ -1392,13 +1392,14 @@ public final class FilePath implements Serializable {
     }
 
     /**
-     * Copies this file to the specified target, with file permissions intact.
+     * Copies this file to the specified target, with file permissions and other meta attributes intact.
      * @since 1.311
      */
     public void copyToWithPermission(FilePath target) throws IOException, InterruptedException {
         copyTo(target);
         // copy file permission
         target.chmod(mode());
+        target.touch(lastModified());
     }
 
     /**