@ServiceScope({ Scope.Build.class, Scope.Global.class })
public interface ToolchainConfiguration {
    String AUTO_DETECT = "org.gradle.java.installations.auto-detect";

    Collection<String> getJavaInstallationsFromEnvironment();
    void setJavaInstallationsFromEnvironment(Collection<String> installations);

    Collection<String> getInstallationsFromPaths();
    void setInstallationsFromPaths(Collection<String> installations);

        this.javaInstallationsFromEnvironment = Collections.emptyList();
        this.installationsFromPaths = Collections.emptyList();
    }

    @Override
    public Collection<String> getJavaInstallationsFromEnvironment() {
        return javaInstallationsFromEnvironment;
    }

    @Override
    public void setJavaInstallationsFromEnvironment(Collection<String> javaInstallationsFromEnvironment) {

        this.providerFactory = providerFactory;
        this.systemProperties = systemProperties;
    }

    @Override
    public Collection<String> getJavaInstallationsFromEnvironment() {
        return Arrays.asList(providerFactory.gradleProperty(EnvironmentVariableListInstallationSupplier.JAVA_INSTALLATIONS_FROM_ENV_PROPERTY).getOrElse("").split(","));
    }

    @Override