01: /* 02: * Created on 28-Feb-2006 03: */ 04: package uk.org.ponder.util; 05: 06: import java.util.Map; 07: 08: /** Retrofit part of the 1.5/emory concurrent map interface to JDK 1.4 */ 09: 10: public interface ConcurrentMap extends Map { 11: public Object putIfAbsent(Object key, Object value); 12: }