src/main/java/com/infilos/DAGraph.java
/**
     * @return all the nodes without meta info
     */
@return all the nodes without meta info
@return all the nodes without meta info
public Set<Node> allNodes() {
        lock.readLock().lock();
        try {
            return Collections.unmodifiableSet(nodes.keySet());
        } finally {
            lock.readLock().unlock();
        }
    }
public Set < Node > allNodes ( ) { lock . readLock ( ) . lock ( ) ; try { return Collections . unmodifiableSet ( nodes . keySet ( ) ) ; } finally { lock . readLock ( ) . unlock ( ) ; } }
@return all the nodes without meta info
@return all the nodes without meta info