question: @ TruffleBoundary public void pushBack ( RAbstractStringVector lines , boolean addNewLine ) { if ( pushBack == null ) { pushBack = new LinkedList < > ( ) ; } for ( int i = 0 ; i < lines . getLength ( ) ; i ++ ) { String newLine = lines . getDataAt ( i ) ; if ( addNewLine ) { newLine = newLine + '\n' ; } pushBack . addFirst ( newLine ) ; } }
target:  Pushes lines back to the connection.