}

    /**
     * 配列が{@literal null}でも長さが0でもない場合は{@literal true}を返します。
     *
     * @param arrays
     *            配列
     * @return 配列が{@literal null}でも長さが0でもない場合は{@literal true}
     */
    public static boolean isNotEmpty(final short[] arrays) {
        return arrays != null && arrays.length != 0;
    }

    /**

     * ObjectUtil.defaultValue(null, null) = null
     * </pre>
     *
     * @param <T>
     *            オブジェクトの型
     * @param t
     *            オブジェクト(<code>null</code>可)
     * @param defaultValue
     *            引数のオブジェクトが<code>null</code>だったら返すオブジェクト(<code>null</code>可)
     * @return オブジェクトを返します。オブジェクトが<code>null</code>だったら<code>defaultValue</code>
     *         を返します。
     */

     *            コンテンツ。{@literal null}であってはいけません
     * @param encoding
     *            エンコーディング。{@literal null}の場合はプラットフォームのデフォルトエンコーディングが使われます
     * @return {@link InputStream}
     */
    public static InputStream getContentsAsStream(final String contents, final String encoding) {
        assertArgumentNotNull("contents", contents);

        if (encoding == null) {
            return new ByteArrayInputStream(contents.getBytes());

        this.groupId = (groupId != null && !groupId.isEmpty()) ? groupId : null;
        this.artifactId = (artifactId != null && !artifactId.isEmpty()) ? artifactId : null;
        this.classifier = (classifier != null && !classifier.isEmpty()) ? classifier : null;
        this.extension = (extension != null && !extension.isEmpty()) ? extension : null;

            if (settings.getLocalRepository() != null
                    && !settings.getLocalRepository().isEmpty()) {
                addViolation(problems, BuilderProblem.Severity.WARNING, "localRepository", null, msgS);
            }
            if (!settings.isInteractiveMode()) {
                addViolation(problems, BuilderProblem.Severity.WARNING, "interactiveMode", null, msgS);
            }
            if (settings.isOffline()) {

                        prefix + prefix2 + "(groupId:artifactId)",
                        null,
                        "groupId of a plugin must be defined. ",
                        plugin);
            }

            if (plugin.getArtifactId() == null
                    || (plugin.getArtifactId() != null
                            && plugin.getArtifactId().trim().isEmpty())) {
                addViolation(

        if (stereotype == null) {
            // TODO: this here is fishy
            stereotype = new DefaultType(dependency.getType(), Language.NONE, "", null, false);
        }

        boolean system = dependency.getSystemPath() != null
                && !dependency.getSystemPath().isEmpty();

        Map<String, String> props = null;
        if (system) {

        final String[] emptyArray = new String[0];
        assertThat(ArrayUtil.addAll((Object[]) null, (Object[]) null), is(nullValue()));
        assertThat(ArrayUtil.addAll(null, emptyArray).length, is(0));
        assertThat(ArrayUtil.addAll(emptyArray, null), is(sameInstance(emptyArray)));
        assertThat(ArrayUtil.addAll(emptyArray, null), is(sameInstance(emptyArray)));

     *
     * @param groupId The group id, may be {@code null}.
     * @param artifactId The artifact id, may be {@code null}.
     * @param version The version, may be {@code null}.
     * @return The user-friendly artifact id, never {@code null}.
     */
    static String toId(String groupId, String artifactId, String version) {
        return ((groupId != null && !groupId.isEmpty()) ? groupId : "[unknown-group-id]")
                + ':'

        assertThat(StringUtil.defaultString("aaa", null), is("aaa"));
        assertThat(StringUtil.defaultString(null, null), is(nullValue()));
    }

    @Test
    public void testNewStringUnsafe() {
        assertNull(StringUtil.newStringUnsafe(null));
        Method newStringUnsafeMethod = StringUtil.newStringUnsafeMethod;
        if (newStringUnsafeMethod != null) {