Bug 1363: Java 11: Resolve Buffers.Cleaner implementation

As of Java9, sun.misc.Cleaner has moved to jdk.internal.ref.Cleaner.
However, access has been made (under the table) via sun.misc.Unsafe,
which we are using for now as we cannot set the jdk.internal.ref.Cleaner method accessible.

In this regard, we had to change our Cleaner.clean(..) method using a ByteBuffer
instead of a Buffer object paramter.

All tests have passed, no more illegal access case running on Java11 has been exposed.

1 files changed, 252 insertions, 0 deletions

diff --git a/src/junit/com/jogamp/common/nio/TestCachedBufferFactory.java b/src/junit/com/jogamp/common/nio/TestCachedBufferFactory.java
new file mode 100644
index 0000000..6ed1b91
--- /dev/null
+++ b/src/junit/com/jogamp/common/nio/TestCachedBufferFactory.java
@@ -0,0 +1,252 @@
+/*
+ * Copyright 2011 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package com.jogamp.common.nio;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.IntBuffer;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+import java.util.concurrent.Callable;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import com.jogamp.junit.util.SingletonJunitCase;
+
+import static java.lang.System.*;
+import static org.junit.Assert.*;
+
+/**
+ *
+ * @author Michael Bien
+ */
+import org.junit.FixMethodOrder;
+import org.junit.runners.MethodSorters;
+
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+public class TestCachedBufferFactory extends SingletonJunitCase {
+
+    private final int BUFFERCOUNT = 120;
+
+    private static int[] sizes;
+    private static int[] values;
+    private static IntBuffer[] buffers;
+
+    @Before
+    public void setup() {
+
+        sizes = new int[BUFFERCOUNT];
+        values = new int[sizes.length];
+        buffers = new IntBuffer[sizes.length];
+
+        final Random rnd = new Random(7);
+
+        // setup
+        for (int i = 0; i < sizes.length; i++) {
+            sizes[i] = rnd.nextInt(80)+1;
+            values[i] = rnd.nextInt();
+        }
+
+    }
+
+    @After
+    public void teardown() {
+        sizes = null;
+        values = null;
+        buffers = null;
+    }
+
+    @Test
+    public void dynamicTest() {
+
+        final CachedBufferFactory factory = CachedBufferFactory.create(64);
+
+        // create
+        for (int i = 0; i < sizes.length; i++) {
+            buffers[i] = factory.newDirectIntBuffer(sizes[i]);
+            assertEquals(ByteOrder.nativeOrder(), buffers[i].order());
+            fill(buffers[i], values[i]);
+        }
+
+        // check
+        checkBuffers(buffers, sizes, values);
+
+    }
+
+    @Test
+    public void dynamicConcurrentTest() throws InterruptedException, ExecutionException {
+
+        final CachedBufferFactory factory = CachedBufferFactory.createSynchronized(24);
+
+        final List<Callable<Object>> callables = new ArrayList<Callable<Object>>();
+
+        final CountDownLatch latch = new CountDownLatch(10);
+
+        // create
+        for (int i = 0; i < sizes.length; i++) {
+            final int n = i;
+            final Callable<Object> c = new Callable<Object>() {
+                public Object call() throws Exception {
+                    latch.countDown();
+                    latch.await();
+                    buffers[n] = factory.newDirectIntBuffer(sizes[n]);
+                    fill(buffers[n], values[n]);
+                    return null;
+                }
+            };
+            callables.add(c);
+        }
+
+        final ExecutorService dathVader = Executors.newFixedThreadPool(10);
+        dathVader.invokeAll(callables);
+
+        dathVader.shutdown();
+
+        // check
+        checkBuffers(buffers, sizes, values);
+
+    }
+
+    private void checkBuffers(final IntBuffer[] buffers, final int[] sizes, final int[] values) {
+        for (int i = 0; i < buffers.length; i++) {
+            final IntBuffer buffer = buffers[i];
+            assertEquals(sizes[i], buffer.capacity());
+            assertEquals(0, buffer.position());
+            assertTrue(equals(buffer, values[i]));
+        }
+    }
+
+    @Test
+    public void staticTest() {
+
+        final CachedBufferFactory factory = CachedBufferFactory.create(10, true);
+
+        for (int i = 0; i < 5; i++) {
+            factory.newDirectByteBuffer(2);
+        }
+
+        try{
+            factory.newDirectByteBuffer(1);
+            fail();
+        }catch (final RuntimeException ex) {
+            // expected
+        }
+
+    }
+
+    private void fill(final IntBuffer buffer, final int value) {
+        while(buffer.remaining() != 0)
+            buffer.put(value);
+
+        buffer.rewind();
+    }
+
+    private boolean equals(final IntBuffer buffer, final int value) {
+        while(buffer.remaining() != 0) {
+            if(value != buffer.get())
+                return false;
+        }
+
+        buffer.rewind();
+        return true;
+    }
+
+
+    /* load testing */
+
+    private int size = 4;
+    private final int iterations = 10000;
+
+//    @Test
+    public Object loadTest() {
+        final CachedBufferFactory factory = CachedBufferFactory.create();
+        final ByteBuffer[] buffer = new ByteBuffer[iterations];
+        for (int i = 0; i < buffer.length; i++) {
+            buffer[i] = factory.newDirectByteBuffer(size);
+        }
+        return buffer;
+    }
+
+//    @Test
+    public Object referenceTest() {
+        final ByteBuffer[] buffer = new ByteBuffer[iterations];
+        for (int i = 0; i < buffer.length; i++) {
+            buffer[i] = Buffers.newDirectByteBuffer(size);
+        }
+        return buffer;
+    }
+
+
+    public static void main(final String[] args) {
+
+        TestCachedBufferFactory test = new TestCachedBufferFactory();
+
+        out.print("warmup...");
+        Object obj = null;
+        for (int i = 0; i < 100; i++) {
+            obj = test.referenceTest();
+            obj = test.loadTest();
+            gc();
+        }
+        out.println("done");
+
+        test = new TestCachedBufferFactory();
+        gc();
+
+        for (int i = 0; i < 10; i++) {
+
+            out.println("allocation size: "+test.size);
+
+            long time = System.currentTimeMillis();
+            obj = test.referenceTest();
+            if(obj == null) return; // ref lock
+
+            out.println("reference: "+ (System.currentTimeMillis()-time));
+
+            gc();
+
+            time = currentTimeMillis();
+            obj = test.loadTest();
+            if(obj == null) return; // ref lock
+
+            out.println("factory:   "+ (System.currentTimeMillis()-time));
+
+            gc();
+
+            test.size*=2;
+        }
+
+    }
+
+}