public boolean containsKey(Object key) { synchronized(mutex) {return cache.containsKey(key);} }
public boolean containsKey(Object key) { synchronized(mutex) {return cache.containsKey(key);} }
public boolean containsKey(Object key) { synchronized(mutex) {return cache.containsKey(key);} }
public boolean containsKey(Object key) { synchronized(mutex) {return cache.containsKey(key);} }