--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/ProcessBuilder/Zombies.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2006 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 6474073
+ * @summary Make sure zombies don't get created on Unix
+ * @author Martin Buchholz
+ */
+
+import java.io.*;
+
+public class Zombies {
+    public static void main(String[] args) throws Throwable {
+        if (! new File("/usr/bin/perl").canExecute() ||
+            ! new File("/bin/ps").canExecute())
+            return;
+        System.out.println("Looks like a Unix system.");
+        final Runtime rt = Runtime.getRuntime();
+
+        try {
+            rt.exec("no-such-file");
+            throw new Error("expected IOException not thrown");
+        } catch (IOException _) {/* OK */}
+
+        try {
+            rt.exec(".");
+            throw new Error("expected IOException not thrown");
+        } catch (IOException _) {/* OK */}
+
+        try {
+            rt.exec("/bin/true", null, new File("no-such-dir"));
+            throw new Error("expected IOException not thrown");
+        } catch (IOException _) {/* OK */}
+
+        rt.exec("/bin/true").waitFor();
+
+        // Count all the zombies that are children of this Java process
+        final String[] zombieCounter = {
+            "/usr/bin/perl", "-e",
+            "exit @{[`/bin/ps -eo ppid,s` =~ /^ *@{[getppid]} +Z$/mog]}"
+        };
+
+        int zombies = rt.exec(zombieCounter).waitFor();
+        if (zombies != 0) throw new Error(zombies + " zombies!");
+    }
+}