public void test_getJavaVersion() {
        System.setProperty("java.version", "1.4.2_19");
        assertEquals(4, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.5.0_15");
        assertEquals(5, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.6.0_34");
        assertEquals(6, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.7.0_25");

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

    /**

        Activation syspropActivation = new Activation();

        ActivationProperty syspropProperty = new ActivationProperty();
        syspropProperty.setName("java.version");

        syspropActivation.setProperty(syspropProperty);

        syspropActivated.setActivation(syspropActivation);

        Profile defaultActivated = new Profile();
        defaultActivated.setId("defaultActivated");

    }

    private
    fun updateProperties(fetchedVersions: FetchedVersions) =
        Properties().run {
            setProperty("latests", fetchedVersions.latests.joinToString(","))
            setProperty("nightlyBuildId", fetchedVersions.nightlyBuildId)
            setProperty("nightlyVersion", fetchedVersions.nightlyVersion)
            store(
                propertiesFile.get().asFile,
                comment.get()

        }
        return schemaFactory;
    }

    private static void disableExternalResources(final SchemaFactory schemaFactory) {
        try {
            schemaFactory.setProperty(XMLConstants.ACCESS_EXTERNAL_SCHEMA, "");
            schemaFactory.setProperty(XMLConstants.ACCESS_EXTERNAL_DTD, "");
        } catch (final Exception e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to set a property.", e);

     */

    String save = System.getProperty("user.name");
    System.setProperty("user.name", "-this-is-definitely-not-the-username-we-are-running-as//?");
    try {
      TempFileCreator.testMakingUserPermissionsFromScratch();
      assertThat(isJava8()).isFalse();
    } catch (IOException expectedIfJava8) {
      assertThat(isJava8()).isTrue();
    } finally {
      System.setProperty("user.name", save);
    }
  }

        System.setProperty("abc", "123");

        value = "${abc}";
        assertEquals("123", ResourceUtil.resolve(value));

        value = "xxx${abc}zzz";
        assertEquals("xxx123zzz", ResourceUtil.resolve(value));

        value = "${abc.xyz}";
        assertEquals(value, ResourceUtil.resolve(value));

        System.setProperty("abc.xyz", "789");

        value = "${abc.xyz}";

     * @param value
     *            設定されるプロパティの値
     */
    public static void setProperty(final SAXParser parser, final String name, final String value) {
        assertArgumentNotNull("parser", parser);
        assertArgumentNotEmpty("name", name);

        try {
            parser.setProperty(name, value);
        } catch (final SAXException e) {
            throw new SAXRuntimeException(e);
        }

        return getProperties().get(key);
    }

    @Override
    public String getProperty(final String key, final String defaultValue) {
        return getProperties().getProperty(key, defaultValue);
    }

    @Override
    public String getProperty(final String key) {
        return getProperties().getProperty(key);
    }

    @Override
    public int hashCode() {

            version = prop.getProperty("fess.version", "0.0.0");
            final String[] values = version.split("\\.");
            majorVersion = Integer.parseInt(values[0]);
            minorVersion = Integer.parseInt(values[1]);
            productVersion = majorVersion + "." + minorVersion;
            System.setProperty("fess.version", version);
            System.setProperty("fess.product.version", productVersion);