title: Error Using the boolean
body: <p>I try to use the boolean in my class and get this message</p>
  
  <p>"reference to Boolean is ambiguous, both class jxl.write.Boolean in jxl.write and class java.lang.Boolean in java.lang match"</p>
  
  <p>What can I do in order not to take this error?
  Thank you in advance.</p>