Repository submodule = null;
        try {
            submodule = git.submoduleAdd().
                setURI(submoduleRepo.getWorkTree().toString()).
                setPath(submoduleRepo.getName()).
                call();
            return commit("add submodule " + submoduleRepo.getName(), submoduleRepo.getName());
        } finally {
            if (submodule != null) {
                submodule.close();

==================

These tests use the [hpack-test-case][1] project to validate OkHttp's HPACK
implementation.  The HPACK test cases are in a separate git submodule, so to
initialize them, you must run:

    git submodule init
    git submodule update

TODO
----

 * Add maven goal to avoid manual call to git submodule init.
 * Make hpack-test-case update itself from git, and run new tests.

        def submodule = target.file('submodule/foo.txt')
        submodule.text == "changed!"
        def submodule2 = target.file('submodule/submodule2/bar.txt')
        submodule2.text == "changed!"

        when:
        gitVcs.populate(target, repoHead, repoSpec)

        then:
        submodule.text == "hello from submodule"
        submodule2.text == "hello from another submodule"

# Add module aliases
_losses = _KerasLazyLoader(
    globals(), submodule="losses", name="losses", mode="v2")
_metrics = _KerasLazyLoader(
    globals(), submodule="metrics", name="metrics", mode="v2")
_optimizers = _KerasLazyLoader(
    globals(), submodule="optimizers", name="optimizers", mode="v2")
_initializers = _KerasLazyLoader(
    globals(), submodule="initializers", name="initializers", mode="v2")

// and inserts it into a submodule. We just want to run the clustering
// portion of the pipeline on just the single submodule.
absl::Status RunClusteringPipelineOnSubmodule(
    ModuleOp parent_module, bool is_in_fallback_enabled_mode) {
  int num_submodules = 0;
  absl::Status clustering_pipeline_status;
  parent_module.walk([&](ModuleOp submodule) {
    if (submodule == parent_module) return mlir::WalkResult::advance();

    def "external modifications to source dependency submodule directories are reset"() {
        given:
        // Populate submodule origin
        evenDeeperRepo.file('foo').text = "baz"
        evenDeeperRepo.commit('initial commit', "foo")
        deeperRepo.file('foo').text = "bar"
        deeperRepo.commit("initial commit", "foo")
        // Add submodule to repo
        deeperRepo.addSubmodule(evenDeeperRepo)

    def __init__(self):
      super(Module, self).__init__()
      self.sub_module = SubModule()
      self.initialized_variable = variables.Variable(
          1.0, name="initialized_variable")
      # An UninitializedVariable with the same name as the variable in the
      # SubModule, but with a different type.
      self.uninitialized_variable = resource_variable_ops.UninitializedVariable(

setattr(_current_module, "flags", flags)

# Add module aliases from Keras to TF.
# Some tf endpoints actually lives under Keras.
_current_module.layers = _KerasLazyLoader(
    globals(),
    submodule="__internal__.legacy.layers",
    name="layers",
    mode="v1")
if _tf_uses_legacy_keras:
  _module_dir = _module_util.get_parent_dir_for_name(
      "tf_keras.api._v1.keras.__internal__.legacy.layers")
else:

  )

# Add Keras module aliases
_losses = _KerasLazyLoader(globals(), submodule="losses", name="losses")
_metrics = _KerasLazyLoader(globals(), submodule="metrics", name="metrics")
_optimizers = _KerasLazyLoader(
    globals(), submodule="optimizers", name="optimizers")
_initializers = _KerasLazyLoader(
    globals(), submodule="initializers", name="initializers")
setattr(_current_module, "losses", _losses)

        try (SubmoduleWalk walker = SubmoduleWalk.forIndex(git.getRepository())) {
            while (walker.next()) {
                try (Repository submodule = walker.getRepository()) {
                    if (submodule != null) {
                        Git submoduleGit = Git.wrap(submodule);
                        configureTransport(submoduleGit.fetch()).call();
                        git.submoduleUpdate().addPath(walker.getPath()).call();