cmdAndArguments.add("--install-toolchains");
            cmdAndArguments.add(mavenOptions.altInstallationToolchains().get());
        }
        if (mavenOptions.logFile().isPresent()) {
            cmdAndArguments.add("--log-file");
            cmdAndArguments.add(mavenOptions.logFile().get());
        }
        if (mavenOptions.color().isPresent()) {
            cmdAndArguments.add("--color");

		}
		return ParseSecretKey(s)
	}
}

// IsPresent reports whether a KMS configuration is present.
// It returns an error if multiple KMS configurations are
// present or if one configuration is incomplete.
func IsPresent() (bool, error) {
	// isPresent reports whether at least one of the
	// given env. variables is present.
	isPresent := func(vars ...string) bool {
		for _, v := range vars {

    val rcNumber = buildRcNumber
    val milestoneNumber = buildMilestoneNumber

    if (
        (buildFinalRelease.isPresent && buildRcNumber.isPresent) ||
        (buildFinalRelease.isPresent && buildMilestoneNumber.isPresent) ||
        (buildRcNumber.isPresent && buildMilestoneNumber.isPresent)
    ) {
        throw InvalidUserDataException("Cannot set any combination of milestoneNumber, rcNumber and finalRelease at the same time")

			os.Setenv(k, v)
		}

		ok, err := IsPresent()
		if err != nil && !test.ShouldFail {
			t.Fatalf("Test %d: %v", i, err)
		}
		if err == nil && test.ShouldFail {
			t.Fatalf("Test %d: should have failed but succeeded", i)
		}

		if !test.ShouldFail && ok != test.IsPresent {
			t.Fatalf("Test %d: reported that KMS present=%v - want present=%v", i, ok, test.IsPresent)
		}
	}
}

var isPresentTests = []struct {

    }

    protected <T> Optional<T> returnFirstPresentOrEmpty(Function<O, Optional<T>> getter) {
        for (O option : options) {
            Optional<T> o = getter.apply(option);
            if (o.isPresent()) {
                return o;
            }
        }
        return Optional.empty();
    }

    protected Optional<List<String>> collectListIfPresentOrEmpty(Function<O, Optional<List<String>>> getter) {

        MavenOptions mavenOptions = context.invokerRequest.options();
        if (mavenOptions.failFast().isPresent()) {
            return MavenExecutionRequest.REACTOR_FAIL_FAST;
        } else if (mavenOptions.failAtEnd().isPresent()) {
            return MavenExecutionRequest.REACTOR_FAIL_AT_END;
        } else if (mavenOptions.failNever().isPresent()) {
            return MavenExecutionRequest.REACTOR_FAIL_NEVER;
        } else {

    private
    val timestampSource: String
        get() = parameters.run {
            when {
                buildTimestampFromBuildReceipt.isPresent -> "from build receipt"
                buildTimestampFromGradleProperty.isPresent -> "from buildTimestamp property"
                runningInstallTask.get() -> "from current time because installing"

        if (invokerRequest.options().help().isPresent()) {
            Consumer<String> writer = determineWriter(context);
            invokerRequest.options().displayHelp(context.invokerRequest.parserRequest(), writer);
            throw new ExitException(0);
        }
        if (invokerRequest.options().showVersionAndExit().isPresent()) {
            showVersion(context);
            throw new ExitException(0);

    private static RichReport.Configuration reportConfigurationOf(Provider<RichReport> report) {
        if (report.isPresent()) {
            return report.get().toConfiguration();
        }
        return null;
    }

    private static File maybeFile(RegularFileProperty property) {
        if (property.isPresent()) {
            return property.getAsFile().get();
        }
        return null;
    }

            if (!wildcardType.getExtendedType().isPresent() && !wildcardType.getSuperType().isPresent()) {
                typeMetaData.setWildcard();
            } else {
                wildcardType.getExtendedType().ifPresent(referenceType -> typeMetaData.setUpperBounds(extractTypeName(referenceType)));
                wildcardType.getSuperType().ifPresent(referenceType -> typeMetaData.setLowerBounds(extractTypeName(referenceType)));