Java serialization is inherently Java-centric and does not support cross-language scenarios well.

- **Type Safety:**
Java serialization does not enforce type safety as strictly as some alternatives, potentially leading to runtime errors.

## Decision

We do not use Java serialization.
Instead, we use custom serialization where we explicitly describe how data objects should be serialized and deserialized.

 * of project dependencies. This optimizes module loading during runtime, as we will only load external
 * modules that are not loaded transitively by other project modules.
 *
 * We perform this filtering, since if we simply include all external dependencies, regardless of whether
 * they are already loaded transitively, there is a measurable performance impact during module-loading.
 */

        Element heading = document.body().select("h2").first();

        List<Element> inSection = new ArrayList<>();
        inSection.add(heading);

        Element next = heading.nextElementSibling();
        while (true) {
            if (next == null || next.tagName().equals("h2")) {
                Element section = heading.before("<section class='topic'/>").previousElementSibling();

    private
    val daemonPids = ConcurrentHashMap.newKeySet<String>()

    private
    val logger = Logging.getLogger(DaemonTracker::class.java)

    override fun close() {
        logger.lifecycle("Cleaning up daemons...")
        cleanUpDaemons()
    }

    fun newDaemonListener() =
        object : TestListener {
            override fun beforeTest(test: TestDescriptor) = Unit

See the [discovery document](https://docs.google.com/document/d/1-oKG23gLdx2D2uJvzir31AhDFyqSf81LDESfKKCU28c/edit#heading=h.pps74pn68uvk) (internal document) for more context.

### Platforms

The platforms and their architecture modules are:

#### Core automation platform

    val logger = Logging.getLogger(CachesCleaner::class.java)

    fun cleanUpCaches() {
        synchronized(this) {
            if (hasCleaned) {
                return
            }
            logger.lifecycle("Cleaning up caches...")
            val homeDir = parameters.homeDir.get()

            homeDir.asFile.listFiles()?.filter { it.name.startsWith("distributions-") }?.forEach {
                val workerDir = homeDir.dir(it.name)

module.exports = {
    async: true,
    filter: async (files, pr, token, pathToCodeOwners, callback) => {
        const fileData = await loadCodeownersFile(pr.author, pr.repo, token, pathToCodeOwners);
        console.log("Finished loading codeowners file: " + fileData);
        const mapping = codeownersMapping(fileData);
        console.log("Finished codeowners mapping: " + mapping);

        const result = new Map()
        files.map(f => {