--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mx/FilterTypes.java	Sun May 31 12:32:15 2015 +0200
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+public class FilterTypes {
+
+    /**
+     * Prints to {@link System#out} the values in {@code args[1 .. N]} that denote classes that are
+     * {@link Class#isAssignableFrom(Class) assignable} to the type denoted in {@code args[0]}. The
+     * values are separated by {@code "|"}.
+     */
+    public static void main(String... args) throws Exception {
+        Class<?> jvmciServiceInterface = Class.forName(args[0]);
+        boolean needSep = false;
+        StringBuilder buf = new StringBuilder();
+        for (int i = 1; i < args.length; ++i) {
+            String serviceName = args[i];
+            Class<?> service = Class.forName(serviceName, false, FilterTypes.class.getClassLoader());
+            if (jvmciServiceInterface.isAssignableFrom(service)) {
+                if (buf.length() != 0) {
+                    buf.append('|');
+                }
+                buf.append(serviceName);
+                needSep = true;
+            }
+        }
+        System.out.print(buf);
+    }
+}