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diff --git a/antlr-3.4/tool/src/main/java/org/antlr/analysis/NFA.java b/antlr-3.4/tool/src/main/java/org/antlr/analysis/NFA.java
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+/*
+ * [The "BSD license"]
+ *  Copyright (c) 2010 Terence Parr
+ *  All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions
+ *  are met:
+ *  1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products
+ *      derived from this software without specific prior written permission.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ *  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ *  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package org.antlr.analysis;
+
+import org.antlr.tool.Grammar;
+import org.antlr.tool.NFAFactory;
+
+/** An NFA (collection of NFAStates) constructed from a grammar.  This
+ *  NFA is one big machine for entire grammar.  Decision points are recorded
+ *  by the Grammar object so we can, for example, convert to DFA or simulate
+ *  the NFA (interpret a decision).
+ */
+public class NFA {
+    public static final int INVALID_ALT_NUMBER = -1;
+
+    /** This NFA represents which grammar? */
+    public Grammar grammar;
+	
+	/** Which factory created this NFA? */
+    protected NFAFactory factory = null;
+
+	public boolean complete;
+
+	public NFA(Grammar g) {
+        this.grammar = g;
+    }
+
+	public int getNewNFAStateNumber() {
+		return grammar.composite.getNewNFAStateNumber();
+	}
+
+	public void addState(NFAState state) {
+		grammar.composite.addState(state);
+    }
+
+    public NFAState getState(int s) {
+		return grammar.composite.getState(s);
+    }
+
+    public NFAFactory getFactory() {
+        return factory;
+    }
+
+    public void setFactory(NFAFactory factory) {
+        this.factory = factory;
+    }
+}
+