[FIXED JENKINS-13122] Last modification date of files in a zip are not the original timestamps

changelog.html

@@ -63,13 +63,16 @@ Upcoming changes</a>
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-13097">issue 13097</a>)
   <li class=bug>
     Breadcrumb popup menu gives javascript error on Internet Explorer 8.
-    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-13082">issue 13082</a>~
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-13082">issue 13082</a>)
   <li class=bug>
     Ajax on Update Center does not work in prototype 1.7
   <li class=bug>
     'View as plain text' in Console Output is hidden by the new breadcrums bar
+  <li class=bug>
+    Last modification date of files in a zip are not the original timestamps
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-13122">issue 13122</a>)
   <li class="rfe">
-    Jenkins uses correct port in mDNS advertisement and shows up in Safari Bonjour bookmarks.</li>
+    Jenkins uses correct port in mDNS advertisement and shows up in Safari Bonjour bookmarks.
 </ul>
 </div><!--=TRUNK-END=-->
 

core/src/main/java/hudson/util/io/ZipArchiver.java

@@ -61,11 +61,13 @@ final class ZipArchiver extends Archiver {
             // Setting this bit explicitly is needed by some unzipping applications (see JENKINS-3294).
             dirZipEntry.setExternalAttributes(BITMASK_IS_DIRECTORY);
             if (mode!=-1)   dirZipEntry.setUnixMode(mode);
+            dirZipEntry.setTime(f.lastModified());
             zip.putNextEntry(dirZipEntry);
             zip.closeEntry();
         } else {
             ZipEntry fileZipEntry = new ZipEntry(relativePath);
             if (mode!=-1)   fileZipEntry.setUnixMode(mode);
+            fileZipEntry.setTime(f.lastModified());
             zip.putNextEntry(fileZipEntry);
             FileInputStream in = new FileInputStream(f);
             int len;