public BaseEncoding withSeparator(String separator, int afterEveryChars) {
      for (int i = 0; i < separator.length(); i++) {
        checkArgument(
            !alphabet.matches(separator.charAt(i)),
            "Separator (%s) cannot contain alphabet characters",
            separator);
      }
      if (paddingChar != null) {
        checkArgument(
            separator.indexOf(paddingChar.charValue()) < 0,

     *
     * @param str
     *            文字列
     * @param separator
     *            セパレータ
     * @return 結果の文字列
     */
    public static String substringFromLast(final String str, final String separator) {
        if (isEmpty(str) || isEmpty(separator)) {
            return str;
        }
        final int pos = str.lastIndexOf(separator);
        if (pos == -1) {
            return str;
        }

    if (isWindows()) {
      return; // TODO: b/136041958 - We need to account for drive letters in the path.
    }
    String oldPathSeparator = PATH_SEPARATOR.value();
    String oldClassPath = JAVA_CLASS_PATH.value();
    System.setProperty(PATH_SEPARATOR.key(), ":");
    System.setProperty(
        JAVA_CLASS_PATH.key(),
        Joiner.on(":")
            .join(
                "relative/path/to/some.jar",

        if (localRepository != null && !localRepository.isEmpty()) {
            Path file = Paths.get(localRepository);
            if (!file.isAbsolute() && file.toString().startsWith(File.separator)) {
                effective = effective.withLocalRepository(file.toAbsolutePath().toString());
            }
        }

        if (hasErrors(problems)) {

import static org.mockito.Mockito.mock;

/**
 */
public class PluginParameterExpressionEvaluatorV4Test extends AbstractCoreMavenComponentTestCase {
    private static final String FS = File.separator;

    @Inject
    PlexusContainer container;

    private Path rootDirectory;

    @Test
    public void testPluginDescriptorExpressionReference() throws Exception {
        Session session = newSession();

    }

    // layer the creation of a project builder configuration with a request, but this will need to be
    // a Maven subclass because we don't want to couple maven to the project builder which we need to
    // separate.
    protected MavenSession createMavenSession(File pom) throws Exception {
        return createMavenSession(pom, new Properties());
    }

    }

    // layer the creation of a project builder configuration with a request, but this will need to be
    // a Maven subclass because we don't want to couple maven to the project builder which we need to
    // separate.
    protected MavenSession createMavenSession(File pom) throws Exception {
        return createMavenSession(pom, new Properties());
    }

/**
 * @since 3.3.0
 */
@Named
@Singleton
public class DefaultRepositorySystemSessionFactory implements RepositorySystemSessionFactory {
    /**
     * User property for version filters expression, a semicolon separated list of filters to apply. By default, no version
     * filter is applied (like in Maven 3).
     * <p>
     * Supported filters:
     * <ul>