File basedir = new File(System.getProperty("java.io.tmpdir"));
        project.setFile(new File(basedir, "file"));

        project.addCompileSourceRoot(basedir.getAbsolutePath());
        project.addCompileSourceRoot(".");

        assertEquals(1, project.getCompileSourceRoots().size());
    }

    private void assertNoNulls(List<String> elements) {

    public void setUp() throws Exception {
        super.setUp();
        final File propFile = File.createTempFile("project", ".properties");
        propFile.deleteOnExit();
        FileUtil.writeBytes(propFile.getAbsolutePath(), "fess.version=98.76.5".getBytes());
        final File desginJspRootFile = File.createTempFile("jsp", "");
        desginJspRootFile.delete();
        desginJspRootFile.deleteOnExit();

        try {
          urls.add(new File(entry).toURI().toURL());
        } catch (SecurityException e) { // File.toURI checks to see if the file is a directory
          urls.add(new URL("file", null, new File(entry).getAbsolutePath()));
        }
      } catch (MalformedURLException e) {
        AssertionError error = new AssertionError("malformed class path entry: " + entry);
        error.initCause(e);
        throw error;
      }

    }

    private FsObj[] getFsObj() {
        return Arrays.stream(File.listRoots()).map(f -> {
            final FsObj fsObj = new FsObj();
            fsObj.path = f.getAbsolutePath();
            fsObj.free = f.getFreeSpace();
            fsObj.total = f.getTotalSpace();
            fsObj.usable = f.getUsableSpace();
            fsObj.used = fsObj.total - fsObj.usable;

        }

        protected String getResourcePath(final String path) {
            final File file = ResourceUtil.getResourceAsFileNoException(path);
            if (file != null) {
                return file.getAbsolutePath();
            }
            return null;
        }

        @Override
        public Enumeration<String> getInitParameterNames() {
            throw new UnsupportedOperationException();
        }

        } catch (final IOException e) {
            logger.warn("Failed to create a temp file.", e);
            if (tempFile.exists() && !tempFile.delete()) {
                logger.warn("Failed to delete {}.", tempFile.getAbsolutePath());
            }
            throwValidationError(messages -> messages.addErrorsFileIsNotSupported(GLOBAL, fileName), this::asListHtml);
        }

        if (ownTmpDir == null) {
            return;
        }
        if (!FileUtils.deleteQuietly(ownTmpDir)) {
            logger.warn("Could not delete a temp dir: {}", ownTmpDir.getAbsolutePath());
        }
    }

    protected void appendJarFile(final String cpSeparator, final StringBuilder buf, final File libDir, final String basePath) {

                    if (moduleDir.isDirectory()) {
                        settingsBuilder.put("path.modules", moduleDir.getAbsolutePath());
                    } else {
                        settingsBuilder.put("path.modules", new File(System.getProperty("user.dir"), "modules").getAbsolutePath());
                    }
                    final File pluginDir = new File(esDir, "plugins");

        File localRepo = request.getLocalRepositoryPath();
        return new Settings(org.apache.maven.api.settings.Settings.newBuilder()
                .localRepository(localRepo != null ? localRepo.getAbsolutePath() : null)
                .interactiveMode(request.isInteractiveMode())
                .offline(request.isOffline())
                .proxies(request.getProxies().stream().map(Proxy::getDelegate).collect(Collectors.toList()))

                "Transfer listener still registered after getArtifact");

        /* putArtifact */
        File sampleFile = getTestFile("target/test-file");
        FileUtils.fileWrite(sampleFile.getAbsolutePath(), "sample file");

        assertFalse(
                wagon.getTransferEventSupport().hasTransferListener(transferListener),
                "Transfer listener is registered before test");