Like append, but does not throw {@link BufferOverflowException}
@param to Buffer is flush mode @param b bytes to fill @param off offset into byte @param len length to fill @return The position of the valid data before the flipped position.
See Implementation
Like append, but does not throw {@link BufferOverflowException}
@param to Buffer is flush mode @param b bytes to fill @param off offset into byte @param len length to fill @return The position of the valid data before the flipped position.