--- a/jdk/src/java.base/share/classes/java/util/Base64.java	Wed Jun 24 18:50:19 2015 +0300
+++ b/jdk/src/java.base/share/classes/java/util/Base64.java	Wed Jun 24 11:15:23 2015 -0700
@@ -737,7 +737,7 @@
             // anything left is invalid, if is not MIME.
             // if MIME, ignore all non-base64 character
             while (sp < sl) {
-                if (isMIME && base64[src[sp++]] < 0)
+                if (isMIME && base64[src[sp++] & 0xff] < 0)
                     continue;
                 throw new IllegalArgumentException(
                     "Input byte array has incorrect ending byte at " + sp);

--- a/jdk/test/java/util/Base64/TestBase64.java	Wed Jun 24 18:50:19 2015 +0300
+++ b/jdk/test/java/util/Base64/TestBase64.java	Wed Jun 24 11:15:23 2015 -0700
@@ -23,7 +23,7 @@
 
 /**
  * @test 4235519 8004212 8005394 8007298 8006295 8006315 8006530 8007379 8008925
- *       8014217 8025003 8026330 8028397
+ *       8014217 8025003 8026330 8028397 8129544
  * @summary tests java.util.Base64
  * @key randomness
  */
@@ -408,7 +408,16 @@
                 }});
             }
         }
-    }
+
+        // anything left after padding is "invalid"/IAE, if
+        // not MIME. In case of MIME, non-base64 character(s)
+        // is ignored.
+        checkIAE(new Runnable() { public void run() {
+            Base64.getDecoder().decode("AA==\u00D2"); }});
+        checkIAE(new Runnable() { public void run() {
+            Base64.getUrlDecoder().decode("AA==\u00D2"); }});
+        Base64.getMimeDecoder().decode("AA==\u00D2");
+     }
 
     private static void  testDecodeUnpadded() throws Throwable {
         byte[] srcA = new byte[] { 'Q', 'Q' };