package edu.umd.cs.findbugs;
import java.util.Map;

import edu.umd.cs.findbugs.ba.AnalysisContext;

public class AnalysisLocal<T> {
    protected T initialValue() {
        return null;
    }

    protected Map getMap() {
	AnalysisContext t = AnalysisContext.currentAnalysisContext();
	return  t.analysisLocals;
	}

   public T  get() {
		Map m = getMap();
		if (m.containsKey(this)) return (T) m.get(this);
		
		synchronized(m) {
		    if (m.containsKey(this)) return (T) m.get(this);
		    T result = initialValue();
		    m.put(this,result);
		    return (T) result;
		    }
		}
   public  void set(T value) {
		Map m = getMap();
		m.put(this, value);
		}
   public  void  remove() {
		Map m = getMap();
		m.remove(this);
		}
}

@@ -1,8 +1,848 @@
+/*%0A * FindBugs - Find bugs in Java programs%0A * Copyright (C) 2004,2005 University of Maryland%0A * %0A * This library is free software; you can redistribute it and/or%0A * modify it under the terms of the GNU Lesser General Public%0A * License as published by the Free Software Foundation; either%0A * version 2.1 of the License, or (at your option) any later version.%0A * %0A * This library is distributed in the hope that it will be useful,%0A * but WITHOUT ANY WARRANTY; without even the implied warranty of%0A * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU%0A * Lesser General Public License for more details.%0A * %0A * You should have received a copy of the GNU Lesser General Public%0A * License along with this library; if not, write to the Free Software%0A * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA%0A */%0A
 package 

add copyright notice