Examples of java.nio.ByteBuffer.duplicate()

java.nio.ByteBuffer.duplicate()
Returns a duplicated buffer that shares content with this buffer.
The duplicated buffer's position, limit, capacity and mark are the same as this buffer. The duplicated buffer's readonly property and byte order are same as this buffer too.

The new buffer shares content with this buffer, which means either buffer's change of content will be visible to the other. The two buffer's position, limit and mark are independent.
@return A duplicated buffer that shares content with this buffer.

        {
            buf = encodeAsBuffer();
            _encoded = buf;
        }


        buf = buf.duplicate();


        buf.position(offsetInMetaData);


        if(dest.remaining() < buf.limit())
        {

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                ch.size());
        ByteBuffer bb = ch.map(MapMode.READ_ONLY, ch.position(), size);
        bb.order(BYTE_ORDER);


        if (LOG.isDebugEnabled()) {
            LOG.debug("bb=" + bb.toString() + " content=" + bb.duplicate().asCharBuffer());
        }


        return bb;
    }

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     * JNI operations fail on non-byte views of a direct buffer.
     */
    public void testBufferView() {
        ByteBuffer b = ByteBuffer.allocateDirect(100);
        assertTrue(b.isDirect());
        assertView("duplicate", b, b.duplicate(), 1);
        assertView("char view", b, b.asCharBuffer(), 2);
        assertView("short view", b, b.asShortBuffer(), 2);
        assertView("int view", b, b.asIntBuffer(), 4);
        assertView("float view", b, b.asFloatBuffer(), 4);
        assertView("double view", b, b.asDoubleBuffer(), 8);

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          ByteBuffer cachedBuf = cache.getBlock(name + block);
          if (cachedBuf != null) {
            // Return a distinct 'copy' of the block, so pos doesnt get messed by
            // the scanner
            cacheHits++;
            return cachedBuf.duplicate();
          }
          // Carry on, please load.
        }


        // Load block from filesystem.

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        buf.limit(buf.limit() - DATABLOCKMAGIC.length);
        buf.rewind();


        // Cache the block
        if(cacheBlock && cache != null) {
          cache.cacheBlock(name + block, buf.duplicate(), inMemory);
        }


        return buf;
      }
    }

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                        numbytes += temp_numbytes;
                    }
                    message.position(0);
                    synchronized (recvQueue) {
                        recvQueue
                        .put(new Message(message.duplicate(), sid));
                    }
                    msgLength.position(0);
                }
            } catch (Exception e) {
                LOG.warn("Connection broken for id " + sid + ", my id = " +

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            ByteBuffer payload = xfr.getPayload();
            int payloadSent = send(xfr, payload);


            if(payload != null && payloadSent < payload.remaining())
            {
                payload = payload.duplicate();
try
{
                payload.position(payload.position()+payloadSent);
}
catch(IllegalArgumentException e)

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                //execute this in the executor to preserve ordering, otherwise the socket
                //may be closed while invocations are active
                executor.execute(new Runnable() {
                    @Override
                    public void run() {
                        WebSockets.sendClose(buffer.duplicate(), channel, null);
                    }
                });
            }
        }

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                pos += getContent(body, pos);
            }


            body.flip();


            getMetaData().setBody(body.duplicate());
        }
        return body;
    }


    public Session getSession()

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        {
            buf = encodeAsBuffer();
            _encoded = buf;
        }


        buf = buf.duplicate();


        buf.position(offsetInMetaData);


        if(dest.remaining() < buf.limit())
        {

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