PropertiesUtil.store(outProperties, outputStream, "comments");
        CloseableUtil.close(outputStream);
        final Properties properties = new Properties();
        PropertiesUtil.load(properties, file);
        assertThat(properties.getProperty("a"), is("A"));
    }

    /**
     * Test method for
     * {@link org.codelibs.core.io.PropertiesUtil#store(Properties, java.io.Writer, String)}
     * .

ECL0107=InvalidKeyException occurred, because {0}
ECL0108=The path is null.
ECL0109=Could not create a parent directory of {0}
ECL0110=A parent directory of {0} is not a directory.
ECL0111={0} is not a file.
ECL0112=Could not store {0}
ECL0113=NoSuchPaddingException occurred, because {0}
ECL0114=NoSuchAlgorithmException occurred, because {0}
ECL0115=Failed to set accessible to the field: {0}
ECL0116=Failed to set accessible to the method: {0}

        return getProperties().size();
    }

    @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

    /**
     * {@link Properties#store(OutputStream, String)}の例外処理をラップします。
     *
     * <p>
     * 出力ストリームはクローズされません。
     * </p>
     *
     * @param props
     *            プロパティセット。{@literal null}であってはいけません
     * @param out
     *            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
     */