interface CachedMetadata {
        ResolvedModuleVersion getModuleVersion();

        ModuleComponentResolveMetadata getMetadata();

        Duration getAge();

        boolean isMissing();

        ModuleSources getModuleSources();

        /**
         * The metadata after being processed by component metadata rules.

    public Linkage getLinkage() {
        return null;
    }

    @Override
    public boolean hasRuntimeFile() {
        return true;
    }

    @Override
    public Set<? extends UsageContext> getUsages() {
        Configuration runtimeElements = runtimeElementsProperty.get();

    }

    @Override
    public AttributeContainer getRuntimeAttributes() {
        return getIdentity().getRuntimeVariant().getAttributes();
    }

    @Override
    public Set<? extends UsageContext> getUsages() {
        Configuration linkElements = getLinkElements().get();
        Configuration runtimeElements = getRuntimeElements().get();
        return Sets.newHashSet(

        return false;
    }

    @Override
    public Provider<RegularFile> getRuntimeFile() {
        return Providers.notDefined();
    }

    @Override
    public Set<? extends UsageContext> getUsages() {
        Configuration linkElements = getLinkElements().get();
        Configuration runtimeElements = getRuntimeElements().get();
        // TODO: Does a static library really have any runtime elements?

    }

    @Override
    public AttributeContainer getRuntimeAttributes() {
        return getIdentity().getRuntimeVariant().getAttributes();
    }

    @Override
    public Set<? extends UsageContext> getUsages() {
        Configuration linkElements = getLinkElements().get();
        Configuration runtimeElements = getRuntimeElements().get();
        return Sets.newHashSet(

        return Linkage.SHARED;
    }

    @Override
    public boolean hasRuntimeFile() {
        return true;
    }

    @Override
    public Set<? extends UsageContext> getUsages() {
        Configuration linkElements = getLinkElements().get();
        Configuration runtimeElements = getRuntimeElements().get();
        return Sets.newHashSet(

        VersionMappingStrategyInternal versionMappingStrategy = publication.getVersionMappingStrategy();
        checker.checkComponent(softwareComponent);
        for (SoftwareComponentVariant variant : softwareComponent.getUsages()) {
            checkVariant(variant);
            variants.add(dependencyCoordinateResolverFactory.createCoordinateResolvers(variant, versionMappingStrategy).map(resolvers ->
                new ModuleMetadataSpec.LocalVariant(

//sysnb	Getpgrp() (pgrp int)
//sysnb	Getpid() (pid int)
//sysnb	Getppid() (ppid int)
//sys	Getpriority(which int, who int) (prio int, err error)
//sysnb	Getrlimit(which int, lim *Rlimit) (err error)
//sysnb	Getrusage(who int, rusage *Rusage) (err error)
//sysnb	Getsid(pid int) (sid int, err error)
//sysnb	Gettimeofday(tv *Timeval) (err error)
//sysnb	Getuid() (uid int)
//sys	Issetugid() (tainted bool)

//sysnb	Getpgrp() (pgrp int)
//sysnb	Getpid() (pid int)
//sysnb	Getppid() (ppid int)
//sys	Getpriority(which int, who int) (prio int, err error)
//sysnb	Getrlimit(which int, lim *Rlimit) (err error)
//sysnb	Getrusage(who int, rusage *Rusage) (err error)
//sysnb	Getsid(pid int) (sid int, err error)
//sysnb	Gettimeofday(tv *Timeval) (err error)
//sysnb	Getuid() (uid int)
//sys	Issetugid() (tainted bool)

            return files;

        }

        private void forEachArtifactOf(SoftwareComponentInternal component, Action<PublishArtifact> action) {
            for (SoftwareComponentVariant variant : component.getUsages()) {
                for (PublishArtifact publishArtifact : variant.getArtifacts()) {
                    action.execute(publishArtifact);
                }
            }
        }
    }