diff --git a/src/share/classes/sun/security/tools/jarsigner/Main.java b/src/share/classes/sun/security/tools/jarsigner/Main.java
index c5ed6b1facf914410833df2e6a5335f137f8a0eb..72ce4617bf647e407f798602773e44a35ba840dd 100644
--- a/src/share/classes/sun/security/tools/jarsigner/Main.java
+++ b/src/share/classes/sun/security/tools/jarsigner/Main.java
@@ -291,7 +291,8 @@ public class Main {
 
             String flags = args[n];
             String modifier = null;
-            if (flags.charAt(0) == '-') {
+
+            if (flags.startsWith("-")) {
                 int pos = flags.indexOf(':');
                 if (pos > 0) {
                     modifier = flags.substring(pos+1);
@@ -299,7 +300,14 @@ public class Main {
                 }
             }
 
-            if (collator.compare(flags, "-keystore") == 0) {
+            if (!flags.startsWith("-")) {
+                if (jarfile == null) {
+                    jarfile = flags;
+                } else {
+                    alias = flags;
+                    ckaliases.add(alias);
+                }
+            } else if (collator.compare(flags, "-keystore") == 0) {
                 if (++n == args.length) usageNoArg();
                 keystore = args[n];
             } else if (collator.compare(flags, "-storepass") ==0) {
@@ -380,18 +388,9 @@ public class Main {
                         collator.compare(flags, "-help") == 0) {
                 fullusage();
             } else {
-                if (!flags.startsWith("-")) {
-                    if (jarfile == null) {
-                        jarfile = flags;
-                    } else {
-                        alias = flags;
-                        ckaliases.add(alias);
-                    }
-                } else {
-                    System.err.println(
-                            rb.getString("Illegal.option.") + flags);
-                    usage();
-                }
+                System.err.println(
+                        rb.getString("Illegal.option.") + flags);
+                usage();
             }
         }
 
diff --git a/test/sun/security/tools/jarsigner/collator.sh b/test/sun/security/tools/jarsigner/collator.sh
new file mode 100644
index 0000000000000000000000000000000000000000..06e21aac5fe841357099ba10428870325e3c9eda
--- /dev/null
+++ b/test/sun/security/tools/jarsigner/collator.sh
@@ -0,0 +1,76 @@
+#
+# 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 8021789
+# @summary jarsigner parses alias as command line option (depending on locale)
+#
+
+if [ "${TESTJAVA}" = "" ] ; then
+  JAVAC_CMD=`which javac`
+  TESTJAVA=`dirname $JAVAC_CMD`/..
+fi
+
+# set platform-dependent variables
+OS=`uname -s`
+case "$OS" in
+  Windows_* )
+    FS="\\"
+    ;;
+  * )
+    FS="/"
+    ;;
+esac
+
+F=collator
+KS=collator.jks
+JFILE=collator.jar
+
+KT="$TESTJAVA${FS}bin${FS}keytool -storepass changeit -keypass changeit \
+        -keystore $KS"
+JAR=$TESTJAVA${FS}bin${FS}jar
+JARSIGNER="$TESTJAVA${FS}bin${FS}jarsigner -keystore $KS -storepass changeit"
+
+rm $F $KS $JFILE 2> /dev/null
+
+echo 12345 > $F
+$JAR cvf $JFILE $F
+
+ERR=""
+
+$KT -alias debug -dname CN=debug -genkey -validity 300 || ERR="$ERR 1"
+
+# use "debug" as alias name
+$JARSIGNER $JFILE debug || ERR="$ERR 2"
+
+# use "" as alias name (although there will be a warning)
+$JARSIGNER -verify $JFILE "" || ERR="$ERR 3"
+
+if [ "$ERR" = "" ]; then
+    exit 0
+else
+    echo "ERR is $ERR"
+    exit 1
+fi
+
+