diff --git a/testOnly.sh b/testOnly.sh
new file mode 100755
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--- /dev/null
+++ b/testOnly.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+#------------------------------------------------------------------------------
+#   Copyright 2005 The Apache Software Foundation
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#------------------------------------------------------------------------------
+# $Id$
+#
+# Runs only the unit tests in the package(s) specified by the argument.
+#
+# Usage:
+#     testOnly.sh <package-spec>
+#
+# Examples:
+#     testOnly.sh complex - runs all tests in the complex package
+#     testOnly.sh stat/descriptive - runs tests in stat/descriptive package
+#     testOnly.sh stat/** - runs tests in all subpackages of stat
+#
+# Requires:
+#     version 1.7 or later of the maven test plugin
+#
+# Assumes:
+#     * Test class names end in "Test.java"
+#     * A test class is abstract iff its name embeds the string "Abstract"
+#------------------------------------------------------------------------------
+
+maven -Dtestmatchpattern="**/$1/*Test.java" \
+-Dtestnotmatchpattern="**/*Abstract*" test:match