sendMessage(vertexId,
edge.getTargetVertexId().get(),
BrachaTouegDeadlockMessage.NOTIFY);
/* the node will wait for a DONE message from each notified vertex */
value.waitForMessage(Long.valueOf(edge.getTargetVertexId().get()),
Long.valueOf(BrachaTouegDeadlockMessage.DONE));
}
/* if no requests are pending, the node has to start GRANTing to all
incoming edges */