/**
     * Expanding the thread pool is necessary when work items submit other work.  We want to avoid a starvation scenario where
     * the thread pool is full of work items that are waiting on other queued work items.  The queued work items cannot execute
     * because the thread pool is already full with their parent work items.  We use expand() to allow the thread pool to temporarily

	work.stackRoots = allGsSnapshot()
	work.nStackRoots = len(work.stackRoots)

	work.markrootNext = 0
	work.markrootJobs = uint32(fixedRootCount + work.nDataRoots + work.nBSSRoots + work.nSpanRoots + work.nStackRoots)

	// Calculate base indexes of each root type
	work.baseData = uint32(fixedRootCount)
	work.baseBSS = work.baseData + uint32(work.nDataRoots)

	}
	work.tstart = startTime

	// Check that there's no marking work remaining.
	if work.full != 0 || work.markrootNext < work.markrootJobs {
		print("runtime: full=", hex(work.full), " next=", work.markrootNext, " jobs=", work.markrootJobs, " nDataRoots=", work.nDataRoots, " nBSSRoots=", work.nBSSRoots, " nSpanRoots=", work.nSpanRoots, " nStackRoots=", work.nStackRoots, "\n")

        this.delegate = delegate;
    }

    @Override
    public R execute(UnitOfWork work, C context) {
        WorkValidationContext validationContext = context.getValidationContext();
        work.validate(validationContext);
        context.getBeforeExecutionState()
            .ifPresent(beforeExecutionState -> validateImplementations(work, beforeExecutionState, validationContext));

    }

    @Override
    public AfterExecutionResult execute(UnitOfWork work, C context) {
        Result result = delegate.execute(work, context);
        Optional<ExecutionOutputState> afterExecutionOutputState = context.getCachingState().getCacheKeyCalculatedState()
            .map(cacheKeyCalculatedState -> captureOutputsAfterExecution(work, context, cacheKeyCalculatedState, result));

	Long: `Edit provides a command-line interface for editing go.work,
for use primarily by tools or scripts. It only reads go.work;
it does not look up information about the modules involved.
If no file is specified, Edit looks for a go.work file in the current
directory and its parent directories

The editing flags specify a sequence of editing operations.

The -fmt flag reformats the go.work file without making other changes.

      and conversions to other media types.

      "Work" shall mean the work of authorship, whether in Source or
      Object form, made available under the License, as indicated by a
      copyright notice that is included in or attached to the work
      (an example is provided in the Appendix below).

      "Derivative Works" shall mean any work, whether in Source or Object

    buildFile: File
) : CachedProjectState(path, projectDir, buildFile)


data class BuildToStore(
    val build: VintageGradleBuild,
    // Does this build have work scheduled?
    val hasWork: Boolean,
    // Does this build have a child build with work scheduled?
    val hasChildren: Boolean
) {
    fun hasChildren() = BuildToStore(build, hasWork, true)
}


/**
 * State cached for a build in the tree.
 */

	// since we failed, we should requeue the item to work on later.  This method will add a backoff
	// to avoid hotlooping on particular items (they're probably still not going to work right away)
	// and overall controller protection (everything I've done is broken, this controller needs to
	// calm down or it can starve other useful work) cases.
	c.queue.AddRateLimited(key)

	return true
}

        when:
        def result = step.execute(work, context)

        then:
        result.executionReasons == ["change"]

        _ * context.changes >> Optional.of(changes)
        _ * context.rebuildReasons >> ImmutableList.of("change")
        1 * delegate.execute(work, context) >> delegateResult
        0 * _

        when:
        def outcome = result.execution