Keep time extracted entry to avoid multiple dexopt.

Fix bug 11415819

Change-Id: I1a1300f430f0db7b587e2f29c273884ef80f7fbe

1 files changed, 2 insertions, 0 deletions

diff --git a/library/src/android/support/multidex/MultiDexExtractor.java b/library/src/android/support/multidex/MultiDexExtractor.java
index 220f2aa..bcd9c4d 100644
--- a/library/src/android/support/multidex/MultiDexExtractor.java
+++ b/library/src/android/support/multidex/MultiDexExtractor.java
@@ -140,6 +140,8 @@ final class MultiDexExtractor {
             out = new ZipOutputStream(new FileOutputStream(tmp));
             try {
                 ZipEntry classesDex = new ZipEntry("classes.dex");
+                // keep zip entry time since it is the criteria used by Dalvik
+                classesDex.setTime(dexFile.getTime());
                 out.putNextEntry(classesDex);
 
                 byte[] buffer = new byte[BUFFER_SIZE];