?? commandexception.java
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package auction.command;import javax.ejb.ApplicationException;/** * A checked exception thrown by command execute methods, wrapping the root cause. * * @author Christian Bauer */@ApplicationException(rollback = true)public class CommandException extends Exception { public CommandException() {} public CommandException(String message) { super(message); } public CommandException(String message, Throwable cause) { super(message, cause); } public CommandException(Throwable cause) { super(cause); }}?? 快捷鍵說明
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