assertThat(indexed1.getIndex(), is(0));
        assertThat(indexed1.getElement(), is("aaa"));

        final Indexed<String> indexed2 = it.next();
        assertThat(indexed2.getIndex(), is(1));
        assertThat(indexed2.getElement(), is("bbb"));

        final Indexed<String> indexed3 = it.next();
        assertThat(indexed3.getIndex(), is(2));
        assertThat(indexed3.getElement(), is("ccc"));

    String toString() {
        return "[operation $name]"
    }

    Instant getEnd() {
        def instant = end.get()
        if (instant == null) {
            throw new IllegalStateException("Operation '$name' has not completed yet.")
        }
        return instant
    }

    Duration getDuration() {
        return getEnd() - start
    }

    void completed(Instant when) {

    NestedExceptionPlaceholder(Kind kind, int index) {
        this.kind = kind;
        this.index = index;
    }

    public Kind getKind() {
        return kind;
    }

    public int getIndex() {
        return index;
    }

    enum Kind {
        cause,
        suppressed
    }

 *     System.out.println(indexed.getIndex());
 *     System.out.println(indexed.getElement());
 * }
 * </pre>
 *
 * <pre>
 * import static org.codelibs.core.collection.IndexedIterator.*;
 * import static org.codelibs.core.io.LineIterator.*;
 *
 * BufferedReader reader = ...;
 * for (Indexed&lt;String%gt; indexed : indexed(iterable(reader))) {
 *     System.out.println(indexed.getIndex());

     * 要素を返します。
     *
     * @return 要素
     */
    public T getElement() {
        return element;
    }

    /**
     * インデックスを返します。
     *
     * @return インデックス
     */
    public int getIndex() {
        return index;
    }

        public boolean hasOutput(long classId, long testId, TestOutputEvent.Destination destination) {
            if (dataFile == null) {
                return false;
            }

            Index index = getIndex(classId, testId);
            if (index == null) {
                return false;
            } else {
                Region region = destination == TestOutputEvent.Destination.StdOut ? index.stdOut : index.stdErr;

		if version.header.VersionID != uv || version.header.Type != ObjectType {
			continue
		}
		// if uv has tiered content we add a
		// free-version to track it for asynchronous
		// deletion via scanner.
		ver, err := x.getIdx(i)
		if err != nil {
			return err
		}

		if freeVersion, toFree := ver.ObjectV2.InitFreeVersion(fi); toFree {
			return x.addVersion(freeVersion)
		}
		return nil
	}
	return nil

            if (response.isFailed()) {
                if (ignoreAlreadyExists) {
                    continue;
                }
                sb.append("\n[").append(i).append("]: index [").append(response.getIndex()).append("], id [").append(response.getId())
                        .append("], message [").append(response.getFailureMessage()).append("]");
            }
        }
        if (sb.length() > 0) {

	for i, ver := range x.versions {
		if key == ver.header.VersionID {
			obj, err := x.getIdx(i)
			return i, obj, err
		}
	}
	return -1, nil, errFileVersionNotFound
}

func (x *xlMetaV2) getIdx(idx int) (ver *xlMetaV2Version, err error) {
	if idx < 0 || idx >= len(x.versions) {
		return nil, errFileNotFound
	}
	var dst xlMetaV2Version

        final ParameterizedClassDesc[] parameterDescs = new ParameterizedClassDesc[parameterTypes.length];
        for (final Indexed<Type> parameterType : indexed(iterable(parameterTypes))) {
            parameterDescs[parameterType.getIndex()] = createParameterizedClassDesc(parameterType.getElement(), map);
        }
        desc.setArguments(parameterDescs);
        return desc;
    }