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1   package com.nilhcem.fakesmtp.core.exception;
2   
3   /**
4    * Abstract class to simplify creation of exceptions due to a SMTP port error.
5    *
6    * @author Nilhcem
7    * @since 1.0
8    */
9   abstract class AbstractPortException extends Exception {
10  	private static final long serialVersionUID = 9011196541962512429L;
11  	private final int port;
12  
13  	/**
14  	 * Copies the stack trace of the exception passed in parameter, and sets the port which caused the exception.
15  	 *
16  	 * @param e the exception we need to copy the stack trace from.
17  	 * @param port the selected port which was the cause of the exception.
18  	 */
19  	public AbstractPortException(Exception e, int port) {
20  		setStackTrace(e.getStackTrace());
21  		this.port = port;
22  	}
23  
24  	/**
25  	 * Returns the port entered by the user.
26  	 * <p>
27  	 * Useful to know why the SMTP server could not start.
28  	 * </p>
29  	 *
30  	 * @return the port which caused the exception.
31  	 */
32  	public int getPort() {
33  		return port;
34  	}
35  }