src/main/java/org/wltea/analyzer/dic/DictSegment.java
private Map<Character , DictSegment> getChildrenMap(){
		synchronized(this){
			if(this.childrenMap == null){
				this.childrenMap = new ConcurrentHashMap<Character, DictSegment>(ARRAY_LENGTH_LIMIT * 2,0.8f);
			}
		}
		return this.childrenMap;
	}
private Map<Character , DictSegment> getChildrenMap(){
		synchronized(this){
			if(this.childrenMap == null){
				this.childrenMap = new ConcurrentHashMap<Character, DictSegment>(ARRAY_LENGTH_LIMIT * 2,0.8f);
			}
		}
		return this.childrenMap;
	}
获取Map容器
线程同步方法