Java Utililty Methods ByteBuffer Copy

int pos = orig.position();
try {
    ByteBuffer toReturn;
    if (orig.isDirect()) {
        toReturn = ByteBuffer.allocateDirect(orig.remaining());
    } else {
        toReturn = ByteBuffer.allocate(orig.remaining());
    toReturn.put(orig);
    toReturn.order(orig.order());
    return (ByteBuffer) toReturn.position(0);
} finally {
    orig.position(pos);

ByteBuffer out = ByteBuffer.allocate(bb.remaining());
out.put(bb.duplicate());
out.flip();
return out;

ByteBuffer newBuffer = ByteBuffer.allocate(buffer.remaining() * 2);
newBuffer.put(buffer);
newBuffer.flip();
return newBuffer;

if (buffers == null) {
    return null;
ByteBuffer[] copy = new ByteBuffer[buffers.length];
for (int i = 0; i < copy.length; i++) {
    copy[i] = duplicate(buffers[i]);
return copy;
...

ByteBuffer[] newByteBuffers = new ByteBuffer[byteBuffers.length];
for (int i = 0; i < byteBuffers.length; i++) {
    newByteBuffers[i] = byteBuffers[i].duplicate();
return newByteBuffers;

ByteBuffer dstDup = dstBuffer.duplicate();
dstDup.position(dstByteOffset);
dstDup.limit(dstByteOffset + length);
ByteBuffer srcDup = srcBuffer.duplicate();
srcDup.position(srcByteOffset);
srcDup.limit(srcByteOffset + length);
dstDup.put(srcDup);