class LockEntry {

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((key == null) ? 0 : key.hashCode());
        result = prime * result + ((owner == null) ? 0 : owner.hashCode());
        return result;
    }

    public  LockEntry(String key, long lockAquiredTime, OLATPrincipal owner);

}