src/main/java/com/hp/autonomy/hod/client/api/userstore/group/GroupsServiceImpl.java
private Map<String, Object> buildHierarchyParameters(final List<String> parents, final List<String> children) {
        final MultiMap<String, Object> parameters = new MultiMap<>();

        if (parents != null) {
            for (final String parent : parents) {
                parameters.put("parents", parent);
            }
        }

        if (children != null) {
            for (final String child : children) {
                parameters.put("children", child);
            }
        }

        return parameters;
    }
private Map<String, Object> buildHierarchyParameters(final List<String> parents, final List<String> children) {
        final MultiMap<String, Object> parameters = new MultiMap<>();

        if (parents != null) {
            for (final String parent : parents) {
                parameters.put("parents", parent);
            }
        }

        if (children != null) {
            for (final String child : children) {
                parameters.put("children", child);
            }
        }

        return parameters;
    }
Build the hierarchy parameters map for a create group request