bufferMapInit = new HashMap();
    public JoinerFusionState(FlatNode node)     {	super(node);		assert node.isJoiner();		checkJoiner(true);	checkJoiner(false);	joiner = (SIRJoiner)node.contents;		bufferVar = new JVariableDefinition[node.inputs];	bufferVarInit = new JVariableDefinition[node.inputs];	bufferMap = new HashMap();	bufferMapInit = new HashMap();			makeIncomingBuffers();    }