@Override
    File createTempDir() {
      try {
        return java.nio.file.Files.createTempDirectory(
                Paths.get(JAVA_IO_TMPDIR.value()), /* prefix= */ null, directoryPermissions.get())
            .toFile();
      } catch (IOException e) {
        throw new IllegalStateException("Failed to create directory", e);
      }
    }

    @Override
    File createTempFile(String prefix) throws IOException {

    assertThat(ClassPath.toFile(new URL("file:///c:\\Documents ~ Settings, or not\\11-12 12:05")))
        .isEqualTo(new File("/c:\\Documents ~ Settings, or not\\11-12 12:05"));
    assertThat(ClassPath.toFile(new URL("file:///C:\\Program Files\\Apache Software Foundation")))
        .isEqualTo(new File("/C:\\Program Files\\Apache Software Foundation/"));

    assertThat(ClassPath.toFile(new URL("file:///c:\\Documents ~ Settings, or not\\11-12 12:05")))
        .isEqualTo(new File("/c:\\Documents ~ Settings, or not\\11-12 12:05"));
    assertThat(ClassPath.toFile(new URL("file:///C:\\Program Files\\Apache Software Foundation")))
        .isEqualTo(new File("/C:\\Program Files\\Apache Software Foundation/"));

          // Ignore bad entry
          logger.warning("Invalid Class-Path entry: " + path);
          continue;
        }
        if (url.getProtocol().equals("file")) {
          builder.add(toFile(url));
        }
      }
    }
    return builder.build();
  }

  @VisibleForTesting
  static ImmutableMap<File, ClassLoader> getClassPathEntries(ClassLoader classloader) {

   *     names in a loop until {@code mkdir()} returns {@code true}.) For Java 7+ users, prefer
   *     {@link java.nio.file.Files#createTempDirectory}, transforming it to a {@link File} using
   *     {@link java.nio.file.Path#toFile() toFile()} if needed. To restrict permissions as this
   *     method does, pass {@code
   *     PosixFilePermissions.asFileAttribute(PosixFilePermissions.fromString("rwx------"))} to your
   *     call to {@code createTempDirectory}.