requestAdditionalCapacity
Request capacity of the buffer relative to writePosition. In case buffer is already larger than the requested, this method will just return true. Otherwise, It might try to resize the buffer. In case of being unable to allocate enough memory, an exception will be thrown.
Return
new capacity in bytes
Parameters
additional
capacity in bytes to be added on top of writePosition
copyAtEnd
copy current data at the end of new underlying buffer