question: static String toString ( @ NotNull final Bytes buffer , long position , long len ) throws BufferUnderflowException { final long pos = buffer . readPosition ( ) ; final long limit = buffer . readLimit ( ) ; buffer . readPositionRemaining ( position , len ) ; try { final StringBuilder builder = new StringBuilder ( ) ; while ( buffer . readRemaining ( ) > 0 ) { builder . append ( ( char ) buffer . readByte ( ) ) ; } return builder . toString ( ) ; } finally { buffer . readLimit ( limit ) ; buffer . readPosition ( pos ) ; } }
target:  The buffer is not modified by this call