module org.gradle.sample.lib {
    requires com.google.gson;          // real module
    requires org.apache.commons.lang3; // automatic module
    // commons-cli-1.4.jar is not a module and cannot be required

module org.gradle.sample.app {

module org.gradle.sample {
    exports org.gradle.sample;

	vendorMeta      map[module.Version]vendorMetadata
)

type vendorMetadata struct {
	Explicit    bool
	Replacement module.Version
	GoVersion   string
}

// readVendorList reads the list of vendored modules from vendor/modules.txt.
func readVendorList(vendorDir string) {
	vendorOnce.Do(func() {
		vendorList = nil
		vendorPkgModule = make(map[string]module.Version)

Java Modules are a feature of Java itself, available since Java 9, that allows for better encapsulation.

In Gradle, each _source set_ containing Java sources can be turned into a module by adding a `module-info.java` file.
Typically, in a project with Java Modules like this one, the _main_ source set of a subproject represents a module.

```
src
└── main
    └── java

}

private inline fun buildDependentsMap(
    modules: List<KtModule>,
    getDependencies: (KtModule) -> Sequence<KtModule>,
): Map<KtModule, MutableSet<KtModule>> = buildMap<KtModule, MutableSet<KtModule>> {
    for (module in modules) {
        for (dependency in getDependencies(module)) {
            // `module` should not be part of its own dependents, per the contract of `KotlinModuleDependentsProvider`.

# main modules from the build list incorrectly, leading to the workspace
# modules being checked for correct sums. Specifically this would happen when
# the module name sorted after the virtual 'go' version module name because
# it could not get chopped off when we removed the MainModules.Len() modules
# at the beginning of the build list and we would remove the go module instead.

go mod verify

-- go.work --

go work vendor
cmp modules.txt.want vendor/modules.txt
go list example.com/a example.com/b

# Module required in go.mod but not marked explicit in modules.txt
cp modules.txt.required_but_not_explicit vendor/modules.txt
! go list example.com/a example.com/b
cmpenv stderr required_but_not_explicit_error.txt

# Replacement in go.mod but no replacement in modules.txt
cp modules.txt.missing_replacement vendor/modules.txt
! go list example.com/a example.com/b

        Preconditions.checkNotNull(moduleManager);
        Node modules = findFirstChildNamed(moduleManager, "modules");
        if (modules == null) {
            modules = moduleManager.appendNode("modules");
        }
        return modules;
    }

    private Node findCompilerConfiguration() {

import org.gradle.integtests.fixtures.AbstractHttpDependencyResolutionTest

class LazyDownloadsIntegrationTest extends AbstractHttpDependencyResolutionTest {
    def module = mavenHttpRepo.module("test", "test", "1.0").publish()
    def module2 = mavenHttpRepo.module("test", "test2", "1.0").publish()

    def setup() {
        createDirs("child")
        settingsFile << "include 'child'"
        buildFile << """