for i, ver := range x.versions {
		if key == ver.header.VersionID {
			obj, err := x.getIdx(i)
			return i, obj, err
		}
	}
	return -1, nil, errFileVersionNotFound
}

func (x *xlMetaV2) getIdx(idx int) (ver *xlMetaV2Version, err error) {
	if idx < 0 || idx >= len(x.versions) {
		return nil, errFileNotFound
	}
	var dst xlMetaV2Version

        MojoDescriptor mojoDescriptor = mojoExecution.getMojoDescriptor();

        XmlNode executionConfiguration = mojoExecution.getConfiguration() != null
                ? mojoExecution.getConfiguration().getDom()
                : null;
        if (executionConfiguration == null) {
            executionConfiguration = XmlNode.newInstance("configuration");
        }

        request.setExecutionListener(determineExecutionListener());

        if ((request.getPom() != null) && (request.getPom().getParentFile() != null)) {
            request.setBaseDirectory(request.getPom().getParentFile());
        }

        request.setResumeFrom(commandLine.getOptionValue(CLIManager.RESUME_FROM));

                nt.performFor(fa.getExists(), "exists", fa::setExists);
                nt.performFor(fa.getMissing(), "missing", fa::setMissing);
            });
            a.map(Activation::getOs).ifPresent(oa -> {
                Interpolation nt = new Interpolation(oa, interpolator::interpolate);
                nt.performFor(oa.getArch(), "arch", oa::setArch);

            stk.peek().location = "missing";
            validator.accept(fa.getMissing());
            stk.pop();
            stk.pop();
        });
        root.map(Activation::getOs).ifPresent(oa -> {
            stk.push(new ActivationFrame("os", Optional.of(oa)));
            stk.push(new ActivationFrame("arch", Optional.empty()));
            validator.accept(oa.getArch());