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DataNucleus Core provides the primary components of a heterogenous Java persistence solution. It supports persistence API's being layered on top of the core functionality.

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/**********************************************************************
Copyright (c) 2006 Andy Jefferson and others. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Contributors:
    ...
**********************************************************************/
package org.datanucleus.exceptions;

/**
 * Exception thrown when a transaction fails due to optimistic verification checks.
 */
public class NucleusOptimisticException extends NucleusException
{
    private static final long serialVersionUID = 1796935497958670004L;

    /**
     * Constructs a new exception without a detail message.
     */
    public NucleusOptimisticException()
    {
        super();
    }

    /**
     * Constructs a new exception with the specified detail message.
     * @param msg the detail message.
     */
    public NucleusOptimisticException(String msg)
    {
        super(msg);
    }

    /**
     * Constructs a new exception with the specified detail message and nested Throwables.
     * @param msg the detail message.
     * @param nested the nested Throwable[].
     */
    public NucleusOptimisticException(String msg, Throwable[] nested)
    {
        super(msg, nested);
    }

    /**
     * Constructs a new exception with the specified detail message and failed object.
     * @param msg the detail message.
     * @param failed the failed object.
     */
    public NucleusOptimisticException(String msg, Object failed)
    {
        super(msg, failed);
    }
}