--- a/jdk/src/windows/classes/sun/security/krb5/internal/tools/Ktab.java	Mon Nov 22 16:12:23 2010 -0800
+++ b/jdk/src/windows/classes/sun/security/krb5/internal/tools/Ktab.java	Wed Nov 24 07:43:06 2010 +0800
@@ -129,7 +129,7 @@
             ktab.deleteEntry();
             break;
         default:
-            ktab.printHelp();
+            ktab.error("A command must be provided");
         }
     }
 
@@ -232,7 +232,7 @@
                         append = true;
                         break;
                     default:
-                        printHelp();
+                        error("Unknown command: " + args[i]);
                         break;
                 }
             } else {    // optional standalone arguments

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/security/krb5/tools/ktarg.sh	Wed Nov 24 07:43:06 2010 +0800
@@ -0,0 +1,67 @@
+#
+# Copyright (c) 2010, 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 7002036
+# @summary ktab return code changes on a error case
+# @run shell ktarg.sh
+#
+
+if [ "${TESTJAVA}" = "" ] ; then
+  JAVAC_CMD=`which javac`
+  TESTJAVA=`dirname $JAVAC_CMD`/..
+fi
+
+if [ "${TESTSRC}" = "" ] ; then
+  TESTSRC="."
+fi
+
+OS=`uname -s`
+case "$OS" in
+  CYGWIN* )
+    FS="/"
+    ;;
+  Windows_* )
+    FS="\\"
+    ;;
+  * )
+    FS="/"
+    echo "Unsupported system!"
+    exit 0;
+    ;;
+esac
+
+KEYTAB=ktarg.tmp
+
+rm $KEYTAB 2> /dev/null
+KTAB="${TESTJAVA}${FS}bin${FS}ktab -k $KEYTAB"
+
+$KTAB -a me mine || exit 1
+
+$KTAB -hello
+if [ $? = 0 ]; then exit 2; fi
+
+$KTAB
+if [ $? = 0 ]; then exit 3; fi
+
+exit 0