--- a/jdk/src/share/classes/java/util/jar/JarVerifier.java	Thu Aug 08 17:06:40 2013 -0700
+++ b/jdk/src/share/classes/java/util/jar/JarVerifier.java	Fri Aug 09 11:41:17 2013 +0800
@@ -139,13 +139,21 @@
                     return;
                 }
 
+                if (uname.equals(JarFile.MANIFEST_NAME)) {
+                    return;
+                }
+
                 if (SignatureFileVerifier.isBlockOrSF(uname)) {
                     /* We parse only DSA, RSA or EC PKCS7 blocks. */
                     parsingBlockOrSF = true;
                     baos.reset();
                     mev.setEntry(null, je);
+                    return;
                 }
-                return;
+
+                // If a META-INF entry is not MF or block or SF, they should
+                // be normal entries. According to 2 above, no more block or
+                // SF will appear. Let's doneWithMeta.
             }
         }
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/util/jar/JarInputStream/ExtraFileInMetaInf.java	Fri Aug 09 11:41:17 2013 +0800
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2013, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ *  @bug 8021788
+ *  @summary JarInputStream doesn't provide certificates for some file under META-INF
+ */
+
+import java.util.jar.*;
+import java.io.*;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
+
+public class ExtraFileInMetaInf {
+    public static void main(String args[]) throws Exception {
+
+        // Create a zip file with 2 entries
+        try (ZipOutputStream zos =
+                     new ZipOutputStream(new FileOutputStream("x.jar"))) {
+            zos.putNextEntry(new ZipEntry("META-INF/SUB/file"));
+            zos.write(new byte[10]);
+            zos.putNextEntry(new ZipEntry("x"));
+            zos.write(new byte[10]);
+            zos.close();
+        }
+
+        // Sign it
+        new File("ks").delete();
+        sun.security.tools.keytool.Main.main(
+                ("-keystore ks -storepass changeit -keypass changeit " +
+                        "-alias a -dname CN=A -genkeypair").split(" "));
+        sun.security.tools.jarsigner.Main.main(
+                "-keystore ks -storepass changeit x.jar a".split(" "));
+
+        // Check if the entries are signed
+        try (JarInputStream jis =
+                     new JarInputStream(new FileInputStream("x.jar"))) {
+            JarEntry je;
+            while ((je = jis.getNextJarEntry()) != null) {
+                String name = je.toString();
+                if (name.equals("META-INF/SUB/file") || name.equals("x")) {
+                    while (jis.read(new byte[1000]) >= 0);
+                    if (je.getCertificates() == null) {
+                        throw new Exception(name + " not signed");
+                    }
+                }
+            }
+        }
+    }
+}