*/

    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);
    }
  }

     */

    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);
    }
  }

    out.write(data);
    assertTrue(Arrays.equals(data, source.read()));

    out.close();
  }

  private static boolean isAndroid() {
    return System.getProperty("java.runtime.name", "").contains("Android");
  }

  private static boolean isWindows() {
    return OS_NAME.value().startsWith("Windows");
  }

      assertEquals(expected, property.key());
    }
  }

  public void testGetValue() {
    for (StandardSystemProperty property : StandardSystemProperty.values()) {
      assertEquals(System.getProperty(property.key()), property.value());
    }
  }

  public void testToString() {
    for (StandardSystemProperty property : StandardSystemProperty.values()) {

        : parseJavaClassPath().toArray(new URL[0]);
  }

  /**
   * Returns the URLs in the class path specified by the {@code java.class.path} {@linkplain
   * System#getProperty system property}.
   */
  // TODO(b/65488446): Make this a public API.
  @J2ktIncompatible
  @GwtIncompatible
  private static ImmutableList<URL> parseJavaClassPath() {

      assertEquals(expected, property.key());
    }
  }

  public void testGetValue() {
    for (StandardSystemProperty property : StandardSystemProperty.values()) {
      assertEquals(System.getProperty(property.key()), property.value());
    }
  }

  public void testToString() {
    for (StandardSystemProperty property : StandardSystemProperty.values()) {

    assertEquals("foo\nbar\nbaz\n", sink.getString());
  }

  public void testWriteLines_withDefaultSeparator() throws IOException {
    sink.writeLines(ImmutableList.of("foo", "bar", "baz"));
    String separator = System.getProperty("line.separator");
    assertEquals("foo" + separator + "bar" + separator + "baz" + separator, sink.getString());
  }

  public void testClosesOnErrors_copyingFromCharSourceThatThrows() {

       * In the future, the use of Unsafe.getLong() should be replaced by ByteBuffer.getLong(),
       * which will have an efficient native implementation in JDK 9.
       *
       */
      String arch = System.getProperty("os.arch");
      if ("amd64".equals(arch)) {
        theGetter =
            ByteOrder.nativeOrder().equals(ByteOrder.LITTLE_ENDIAN)
                ? UnsafeByteArray.UNSAFE_LITTLE_ENDIAN

  private static final BigInteger BAD_FOR_GINGERBREAD_Q = new BigInteger("-4294967296");

  @GwtIncompatible // TODO
  @AndroidIncompatible // slow
  public void testDivNonZeroExact() {
    String runtimeName = System.getProperty("java.runtime.name");
    boolean isAndroid = runtimeName != null && runtimeName.contains("Android");
    for (BigInteger p : NONZERO_BIGINTEGER_CANDIDATES) {
      for (BigInteger q : NONZERO_BIGINTEGER_CANDIDATES) {

  private static final BigInteger BAD_FOR_GINGERBREAD_Q = new BigInteger("-4294967296");

  @GwtIncompatible // TODO
  @AndroidIncompatible // slow
  public void testDivNonZeroExact() {
    String runtimeName = System.getProperty("java.runtime.name");
    boolean isAndroid = runtimeName != null && runtimeName.contains("Android");
    for (BigInteger p : NONZERO_BIGINTEGER_CANDIDATES) {
      for (BigInteger q : NONZERO_BIGINTEGER_CANDIDATES) {