Add sun/nio and sun/util from OpenJDK

tests/test_data/std/sun/nio/ByteBuffered.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2003, 2020, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+package sun.nio;
+
+import java.nio.ByteBuffer;
+import java.io.IOException;
+
+/**
+ * This is an interface to adapt existing APIs to use {@link java.nio.ByteBuffer
+ * ByteBuffers} as the underlying data format.  Only the initial producer and
+ * final consumer have to be changed.
+ *
+ * <p>
+ * For example, the Zip/Jar code supports {@link java.io.InputStream InputStreams}.
+ * To make the Zip code use {@link java.nio.MappedByteBuffer MappedByteBuffers} as
+ * the underlying data structure, it can create a class of InputStream that wraps
+ * the ByteBuffer, and implements the ByteBuffered interface. A co-operating class
+ * several layers away can ask the InputStream if it is an instance of ByteBuffered,
+ * then call the {@link #getByteBuffer()} method.
+ */
+public interface ByteBuffered {
+
+    /**
+     * Returns the {@code ByteBuffer} behind this object, if this particular
+     * instance has one. An implementation of {@code getByteBuffer()} is allowed
+     * to return {@code null} for any reason.
+     *
+     * @return  The {@code ByteBuffer}, if this particular instance has one,
+     *          or {@code null} otherwise.
+     *
+     * @throws  IOException
+     *          If the ByteBuffer is no longer valid.
+     *
+     * @since  1.5
+     */
+    public ByteBuffer getByteBuffer() throws IOException;
+}

tests/test_data/std/sun/nio/ch/AllocatedNativeObject.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2000, 2001, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+/*
+ */
+
+package sun.nio.ch;                                     // Formerly in sun.misc
+
+
+// ## In the fullness of time, this class will be eliminated
+
+class AllocatedNativeObject                             // package-private
+    extends NativeObject
+{
+
+    /**
+     * Allocates a memory area of at least {@code size} bytes outside of the
+     * Java heap and creates a native object for that area.
+     *
+     * @param  size
+     *         Number of bytes to allocate
+     *
+     * @param  pageAligned
+     *         If {@code true} then the area will be aligned on a hardware
+     *         page boundary
+     *
+     * @throws OutOfMemoryError
+     *         If the request cannot be satisfied
+     */
+    AllocatedNativeObject(int size, boolean pageAligned) {
+        super(size, pageAligned);
+    }
+
+    /**
+     * Frees the native memory area associated with this object.
+     */
+    synchronized void free() {
+        if (allocationAddress != 0) {
+            unsafe.freeMemory(allocationAddress);
+            allocationAddress = 0;
+        }
+    }
+
+}