* プラットフォームのデフォルトエンコーディングでXMLの内容を {@link InputStream}として取得します。
     *
     * @param contents
     *            コンテンツ。{@literal null}であってはいけません
     * @return {@link InputStream}
     */
    public static InputStream getContentsAsStream(final String contents) {
        assertArgumentNotNull("contents", contents);
        return getContentsAsStream(contents, null);
    }

    /**
     * 指定のエンコーディングでXMLの内容を {@link InputStream}として取得します。

    /**
     * @throws Exception
     */
    public void testGetContentsAsStream() throws Exception {
        final String contents = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><foo/>";
        assertNotNull("1", DomUtil.getContentsAsStream(contents, "UTF-8"));
    }

    /**
     * @throws Exception
     */
    public void testToString() throws Exception {

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.core;

import java.nio.charset.Charset;

/**
 * Constants class.
 *
 * @author shinsuke
 *
 */
public class CoreLibConstants {

    /**
     * UTF-8
     */
    public static final String UTF_8 = "UTF-8";

        final File file = tempFolder.newFile("hoge.properties");
        final FileOutputStream outputStream = OutputStreamUtil.create(file);
        PropertiesUtil.store(outProperties, outputStream, "comments");
        CloseableUtil.close(outputStream);
        final Properties properties = new Properties();
        PropertiesUtil.load(properties, file);
        assertThat(properties.getProperty("a"), is("A"));
    }

     *            出力ストリーム。{@literal null}であってはいけません
     * @param comments
     *            コメント
     */
    public static void store(final Properties props, final OutputStream out, final String comments) {
        assertArgumentNotNull("props", props);
        assertArgumentNotNull("out", out);

        try {
            props.store(out, comments);
        } catch (final IOException e) {

    }

    @Override
    public void store(final OutputStream out, final String comments) throws IOException {
        getProperties().store(out, comments);
    }

    @Override
    public void store(final Writer writer, final String comments) throws IOException {
        getProperties().store(writer, comments);
    }

    @Override