test/jdk/java/net/Socket/SocketGrowth.java
changeset 47216 71c04702a3d5
parent 14173 8a94baea7747
child 54887 442e22c051f0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/net/Socket/SocketGrowth.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2012, 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 7181793
+ * @summary getOutputStream create streams that cannot be GC'ed until Socket is closed
+ * @run main/othervm -Xmx32m SocketGrowth
+ */
+
+import java.io.IOException;
+import java.net.ServerSocket;
+import java.net.Socket;
+
+public class SocketGrowth {
+
+    public static void main(String[] args) throws IOException {
+
+        try (ServerSocket ss = new ServerSocket(0)) {
+            try (Socket s = new Socket("localhost", ss.getLocalPort());
+                    Socket peer = ss.accept()) {
+                for (int i=0; i<1000000; i++) {
+                    // buggy JDK will run out of memory in this loop
+                    s.getOutputStream();
+                    // test InputStream also while we're here
+                    s.getInputStream();
+                    if (i % 100000 == 0) System.out.println(i);
+                }
+            }
+        }
+    }
+}