test/jdk/java/io/readBytes/MemoryLeak.java
changeset 47216 71c04702a3d5
parent 27785 29d4cb4a8f5e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/io/readBytes/MemoryLeak.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2008, 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 6791458
+ * @summary Reading from closed input files leaks native memory
+ */
+
+import java.io.*;
+
+public class MemoryLeak {
+    public static void main(String[] args) throws Throwable {
+        byte[] bytes = new byte[1 << 20];
+        String dir = System.getProperty("test.src", ".");
+        File testFile = new File(dir, "input.txt");
+        FileInputStream s = new FileInputStream(testFile);
+        s.close();
+        for (int i = 0; i < 10000; i++) {
+            try {
+                s.read(bytes);
+                throw new Error("expected IOException");
+            } catch (IOException expected) {
+                /* OK */
+            } catch (OutOfMemoryError oome) {
+                System.out.printf("Got OutOfMemoryError, i=%d%n", i);
+                throw oome;
+            }
+        }
+    }
+}