Such modules, that only have a name as module description, are called _automatic module_ that export **all** their packages and can read **all** modules on the module path.

A third case are traditional libraries that provide no module information at all -- for example `commons-cli:commons-cli:1.4`.
Gradle puts such libraries on the classpath instead of the module path.
The classpath is then treated as one module (the so called _unnamed_ module) by Java.

            file("libs/api-1.1.jar").assertIsDifferentFrom(ivyHttpRepo.module('org.utils', 'api', '1.1').jarFile)
            file("libs/api-1.1.jar").assertIsCopyOf(module2.jarFile)
        }

        where:
        selector << ["1.1", "1.+"]
    }

    @ToBeFixedForConfigurationCache(because = "task uses Configuration API")
    def "can control selection of components by module rule #rule for #selector"() {
        given:

# 'go clean' should skip the current directory if it isn't in a module.
go clean -n
! stdout .
! stderr .

# 'go mod graph' should fail, since there's no module graph.
! go mod graph
stderr '^go: go.mod file not found in current directory or any parent directory; see ''go help modules''$'

# 'go mod why' should fail, since there is no main module to depend on anything.

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

    private Node findCompilerConfiguration() {

        ideaProject.modules.find { it.name == 'test-project' }.javaLanguageSettings.jdk == null
        ideaProject.modules.find { it.name == 'child1' }.javaLanguageSettings.jdk == null
        ideaProject.modules.find { it.name == 'child2' }.javaLanguageSettings.jdk == null
    }

    def "synched module bytecode level marked as inherited"() {

        when:

	sha256SchemePrefix = "sha256:"
)

// Cache models a Wasm module cache.
type Cache interface {
	Get(url string, opts GetOptions) (string, error)
	Cleanup()
}

// LocalFileCache for downloaded Wasm modules. Currently it stores the Wasm module as local file.
type LocalFileCache struct {
	// Map from Wasm module checksum to cache entry.
	modules map[moduleKey]*cacheEntry
	// Map from tagged URL to checksum

# Gradle Module Metadata 1.0 specification

Consumption of Gradle Module Metadata is automatic. However, publication needs to be enabled explicitly for any Gradle version prior to Gradle 6.

Publishing Gradle Module Metadata can be enabled in the Gradle settings file (`settings.gradle`):

```
enableFeaturePreview("GRADLE_METADATA")
```

## Goal

_Gradle Module Metadata 1.1 is supported in Gradle 6._

Gradle publishes Gradle Module Metadata along with traditional metadata. Gradle Module Metadata is automatically consumed when available.

## Goal

    /**
     * {@return the type of path detected}. The return value is {@link JavaPathType#MODULES}
     * if the dependency is a modular JAR file or a directory containing module descriptor(s),
     * or {@link JavaPathType#CLASSES} otherwise. A JAR file without module descriptor but with
     * an "Automatic-Module-Name" manifest attribute is considered modular.
     */
    public JavaPathType getPathType() {

        //then
        def dependencies = parseIml("api/api.iml").dependencies
        assert dependencies.modules.size() == 1
        dependencies.assertHasModule(['COMPILE'], "root-project-1")

        dependencies = parseIml("root-project-1.iml").dependencies
        assert dependencies.modules.size() == 0
    }

    @Test
    @ToBeFixedForConfigurationCache
    void respectsApiOfJavaLibraries() {