import org.codelibs.core.log.Logger;

/**
 * Utility for common pool operations.
 */
public abstract class CommonPoolUtil {
    private static final Logger logger = Logger.getLogger(CommonPoolUtil.class);

    protected CommonPoolUtil() {
        // nothing
    }

    /**
     * Executes the given task in the common ForkJoinPool.
     *
     * @param task
     *            the task to execute
     */

    /**
     * Digit only date format: yyyyMMddHHmmss
     */
    public static final String DATE_FORMAT_DIGIT_ONLY = "yyyyMMddHHmmss";

    /**
     * Do not instantiate.
     */
    protected CoreLibConstants() {
    }

 *
 * @author Jared Levy
 * @since 2.0
 */
@GwtCompatible
public abstract class UnmodifiableIterator<E extends @Nullable Object> implements Iterator<E> {
  /** Constructor for use by subclasses. */
  protected UnmodifiableIterator() {}

  /**
   * Guaranteed to throw an exception and leave the underlying data unmodified.
   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */

    String[] array = new String[elements.length];
    int i = 0;
    for (Object e : elements) {
      array[i++] = (String) e;
    }
    return create(array);
  }

  protected abstract Queue<String> create(String[] elements);

  @Override
  public String[] createArray(int length) {
    return new String[length];
  }

  /** Returns the original element list, unchanged. */
  @Override

/**
 * Adapter to convert an {@link Iterator} to an {@link Enumeration}.
 *
 * @author higa
 * @param <T> the element type
 */
public class IteratorEnumeration<T> implements Enumeration<T> {

    /** 反復子 */
    protected final Iterator<T> iterator;

    /**
     * Creates an {@link IteratorEnumeration}.
     *
     * @param iterator the iterator (must not be {@literal null})
     */

 */
@Named("apply")
@Singleton
public class Apply extends AbstractUpgradeGoal {

    @Inject
    public Apply(StrategyOrchestrator orchestrator) {
        super(orchestrator);
    }

    @Override
    protected boolean shouldSaveModifications() {
        return true;
    }

    @Override
    public int execute(UpgradeContext context) throws Exception {
        context.info("Maven Upgrade Tool - Apply");

 */
@Named("check")
@Singleton
public class Check extends AbstractUpgradeGoal {

    @Inject
    public Check(StrategyOrchestrator orchestrator) {
        super(orchestrator);
    }

    @Override
    protected boolean shouldSaveModifications() {
        return false;
    }

    @Override
    public int execute(UpgradeContext context) throws Exception {
        context.info("Maven Upgrade Tool - Check");

        createdTime = null;
        versionNo = null;

    }

    /**
     * Gets the default current page number.
     *
     * @return the default current page number
     */
    protected int getDefaultCurrentPageNumber() {
        return DEFAULT_CURRENT_PAGE_NUMBER;
    }

    /**
     * Gets the total number of records in the result set.
     *
     * @return the total record count

     */
    public static final File tmpDir = new File(System.getProperty("java.io.tmpdir"));

    /**
     * Protected constructor to prevent direct instantiation but allow inheritance.
     */
    protected Curl() {
        // nothing
    }

    /**
     * Creates a new CurlRequest with the HTTP GET method for the specified URL.
     *

/**
 * Utility class for handling {@link URL}.
 *
 * @author higa
 */
public abstract class URLUtil {

    /**
     * Do not instantiate.
     */
    protected URLUtil() {
    }

    /** Map for normalizing protocols */
    protected static final Map<String, String> CANONICAL_PROTOCOLS = newHashMap();
    static {
        CANONICAL_PROTOCOLS.put("wsjar", "jar"); // Proprietary protocol used by WebSphere for jar files