Extracted an Allocator interface for DirectByteBuffers

Signed-off-by: Kai Boernert <kai-boernert@visiongamestudios.de>

jme3-core/src/main/java/com/jme3/util/PrimitiveAllocator.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2009-2012 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * 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.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT OWNER 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.
+ */
+package com.jme3.util;
+
+import java.nio.Buffer;
+import java.nio.ByteBuffer;
+
+/**
+ * This class contains a primitve allocator with no special logic, should work
+ * on any jvm
+ */
+public final class PrimitiveAllocator implements BufferAllocator {
+
+	@Override
+	public void destroyDirectBuffer(Buffer toBeDestroyed) {
+		// no exception by intent, as this way naivly written java7/8
+		// applications wont crash on 9 assuming they can dispose buffers
+		System.err.println("Warning destroyBuffer not supported");
+	}
+
+	@Override
+	public ByteBuffer allocate(int size) {
+		return ByteBuffer.allocateDirect(size);
+	}
+
+}

jme3-core/src/main/java/com/jme3/util/ReflectionAllocator.java

@@ -43,7 +43,7 @@ import java.util.logging.Logger;
  * This class contains the reflection based way to remove DirectByteBuffers in java < 9,
  * allocation is done via ByteBuffer.allocateDirect
  */
-public final class ReflectionBufferUtils implements BufferAllocator {
+public final class ReflectionAllocator implements BufferAllocator {
 	private static Method	cleanerMethod		= null;
 	private static Method	cleanMethod			= null;
 	private static Method	viewedBufferMethod	= null;