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"));
    }

    /**

        }
        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);

        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");

     * @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);
        }

     */

    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);
    }
  }

    @Test
    void resumeFromPropertyGetsApplied() {
        MavenExecutionRequest request = new DefaultMavenExecutionRequest();
        Properties properties = new Properties();
        properties.setProperty("remainingProjects", ":module-a");

        repository.applyResumptionProperties(request, properties);

        assertThat(request.getProjectActivation().getOptionalActiveProjectSelectors(), is(singleton(":module-a")));

        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}";

    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");

                    String key = "env."
                            + (caseSensitive ? entry.getKey() : entry.getKey().toUpperCase(Locale.ENGLISH));
                    tmp.setProperty(key, entry.getValue());
                }
                envVars = tmp;
            }

            props.putAll(envVars);
        }
    }

     */

    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);
    }
  }