src/main/java/net/wasdev/wlp/common/plugins/util/InstallFeatureUtil.java
private boolean isOnlyOpenLibertyFeatures(List<String> featuresToInstall) throws PluginExecutionException {
        boolean result = containsIgnoreCase(getOpenLibertyFeatureSet(downloadedJsons), featuresToInstall);
        debug("Is installing only Open Liberty features? " + result);
        return result;
    }
private boolean isOnlyOpenLibertyFeatures(List<String> featuresToInstall) throws PluginExecutionException {
        boolean result = containsIgnoreCase(getOpenLibertyFeatureSet(downloadedJsons), featuresToInstall);
        debug("Is installing only Open Liberty features? " + result);
        return result;
    }
Returns true if all features in featuresToInstall are Open Liberty features.

@param featuresToInstall list of features to check
@return true if featureToInstall has only Open Liberty features
@throws PluginExecutionException if any of the downloaded JSONs could not be found