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 package org.apidesign.html.canvas.impl;

 import net.java.html.canvas.GraphicsContext;

 import net.java.html.canvas.spi.GraphicsEnvironment;

 /**

  *

  * @author antonepple

  */

 public abstract class CnvsAccssr {

     static CnvsAccssr DEFAULT;

     public CnvsAccssr() {

         if (DEFAULT!=null) throw new IllegalStateException("Already initialized");

         DEFAULT = this;

     }

     public static CnvsAccssr getDefault() {

         return DEFAULT;

     }

     public abstract GraphicsContext create(GraphicsEnvironment environment);

 }