--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/sun/misc/InvokeCleaner.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2016, 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 8171377
+ * @summary Basic test for Unsafe::invokeCleaner
+ * @modules jdk.unsupported
+ * @run testng/othervm InvokeCleaner
+ */
+
+import java.io.Closeable;
+import java.lang.reflect.Field;
+import java.nio.ByteBuffer;
+import java.nio.MappedByteBuffer;
+import java.nio.channels.FileChannel;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.List;
+import sun.misc.Unsafe;
+import org.testng.annotations.AfterClass;
+import org.testng.annotations.BeforeClass;
+import org.testng.annotations.Test;
+import org.testng.annotations.DataProvider;
+
+public class InvokeCleaner {
+
+ static Unsafe UNSAFE;
+ static Path bob = Paths.get("bob");
+ static List<Closeable> closeables = new ArrayList<>();
+
+ @BeforeClass
+ static void init() throws Exception {
+ UNSAFE = getUnsafe();
+
+ byte[] srcData = new byte[20];
+ for (int i=0; i<20; i++)
+ srcData[i] = (byte)i;
+ Files.write(bob, srcData);
+ }
+
+ @DataProvider(name = "badBuffers")
+ static Object[][] createBadBuffers() throws Exception {
+ FileChannel fc = FileChannel.open(bob);
+ closeables.add(fc);
+ MappedByteBuffer mbb = fc.map(FileChannel.MapMode.READ_ONLY, 0, 10);
+
+ return new Object[][] {
+ { ByteBuffer.allocate(0) },
+ { ByteBuffer.allocate(10) },
+ { ByteBuffer.allocate(10).duplicate() },
+ { ByteBuffer.allocate(10).slice() },
+ { ByteBuffer.allocateDirect(10).duplicate() },
+ { ByteBuffer.allocateDirect(10).slice() },
+ { ByteBuffer.allocateDirect(0).duplicate() },
+ { ByteBuffer.allocateDirect(0).slice() },
+ { mbb.duplicate() },
+ { mbb.slice() }
+ };
+ }
+
+ @Test(dataProvider="badBuffers",
+ expectedExceptions = IllegalArgumentException.class)
+ public void badBuffers(ByteBuffer buffer) throws Exception {
+ UNSAFE.invokeCleaner(buffer);
+ }
+
+ @DataProvider(name = "goodBuffers")
+ static Object[][] createGoodBuffers() throws Exception {
+ FileChannel fc = FileChannel.open(bob);
+ closeables.add(fc);
+ MappedByteBuffer mbb = fc.map(FileChannel.MapMode.READ_ONLY, 0, 10);
+ mbb.load();
+
+ return new Object[][] {
+ { ByteBuffer.allocateDirect(0) },
+ { ByteBuffer.allocateDirect(10) },
+ { mbb },
+ { fc.map(FileChannel.MapMode.READ_ONLY, 1, 11) }
+ };
+ }
+
+ @Test(dataProvider="goodBuffers")
+ public void goodBuffers(ByteBuffer buffer) throws Exception {
+ UNSAFE.invokeCleaner(buffer);
+ }
+
+ @Test(expectedExceptions = NullPointerException.class)
+ public void npe() throws Exception {
+ UNSAFE.invokeCleaner(null);
+ }
+
+ static Unsafe getUnsafe() throws ReflectiveOperationException {
+ Field f = Unsafe.class.getDeclaredField("theUnsafe");
+ f.setAccessible(true);
+ return (Unsafe)f.get(null);
+ }
+
+ @AfterClass
+ public void cleanup() throws Exception {
+ for(Closeable fc : closeables)
+ fc.close();
+ }
+}