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+package com.glezo.mac;%0A%0Apublic class UnparseableMacException extends Exception %0A%7B%0A%09private static final long serialVersionUID = 1L;%0A%0A%09public UnparseableMacException(String msg)%0A%09%7B%0A%09%09super(msg);%0A%09%7D%0A%7D%0A

Create UnparseableMacException.java