@Override
    public String toString() {
        return "PooledByteBuffer{" +
                "byteBuffer=" + ByteBufferUtils.byteBufferInfo(byteBuffer) +
                '}';
    }
Release the underlying {@link ByteBuffer} back to the pool. Once released,
the {@link ByteBuffer} cannot be used any more and you should not retain any
references to it.
stroom-bytebuffer/src/main/java/stroom/bytebuffer/PooledByteBufferImpl.java