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  * JBoss, Home of Professional Open Source.
  * Copyright 2011, Red Hat Inc., and individual contributors
  * as indicated by the @author tags. See the copyright.txt file in the
  * distribution for a full listing of individual contributors.
  * This is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as
  * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site:
package org.jboss.logging;
import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.RetentionPolicy.CLASS;

Identifies a parameter is to be used for constructing an exception and excluded from the formatting of the message.

Parameters will be order-matched first, then type-matched to resolve ambiguity. If a match fails an error should occur.

The value() option will allow an optional class to be specified which will have to match the exact type of the parameter in question, to enable unambiguous resolution. The value must be the fully qualified class name.

James R. Perkins
public @interface Param {

Defines an exact class the parameter must match for unambiguous resolution.

the class the parameter must match.
    Class<?> value() default Object.class;
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