Refactored SourceLoader

import java.nio.file.Paths;

import java.util.ArrayList;

import java.util.List;

import java.util.stream.Collectors;

import java.util.stream.Stream;

/**

 * Loads source code lines.

    private List<String> loadFile(File sourceFile) throws IOException {

        List<String> source = new ArrayList<>();

        if (sourceFile.isFile()) {

            source = Files.lines(Paths.get(sourceFile.getPath())).toList();

            try (Stream<String> lines = Files.lines(Paths.get(sourceFile.getPath()))) {

                source = lines.collect(Collectors.toList());

            }

        else

        {

        } else {

            source.add("Cannot access source code file: " + sourceFile.getAbsolutePath());

        }

        return source;