protected void addPropertiesWithPrefix( Properties properties, String prefix, Properties suffixProperties) { if (properties != null) { if (prefix != null) { if (suffixProperties != null) { Set<Object> keys = suffixProperties.keySet(); if (keys != null) { for (Object key : keys) { String k = key.toString(); String v = suffixProperties.getProperty(k); String pk = prefix + k; properties.put(pk, v); } } } } } }