File jarFile = new File("base.jar");
    assertThat(ClassPath.getClassPathFromManifest(jarFile, manifestClasspath(""))).isEmpty();
  }

  public void testGetClassPathFromManifest_badClassPath() throws IOException {
    File jarFile = new File("base.jar");
    Manifest manifest = manifestClasspath("nosuchscheme:an_invalid^path");
    assertThat(ClassPath.getClassPathFromManifest(jarFile, manifest)).isEmpty();
  }