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HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support

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/*
 * Copyright 2018-present HiveMQ and the HiveMQ Community
 *
 * 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.
 */

package com.hivemq.client.mqtt.exceptions;

import com.hivemq.client.internal.util.AsyncRuntimeException;
import org.jetbrains.annotations.NotNull;

/**
 * Exception that is used if an operation is called on an {@link com.hivemq.client.mqtt.MqttClient MqttClient} that is
 * not possible in its current state, e.g. a client can not publish if it is not connected.
 *
 * @author Silvio Giebl
 * @since 1.0
 */
public class MqttClientStateException extends AsyncRuntimeException {

    public MqttClientStateException(final @NotNull String message) {
        super(message);
    }

    private MqttClientStateException(final @NotNull MqttClientStateException e) {
        super(e);
    }

    @Override
    protected @NotNull MqttClientStateException copy() {
        return new MqttClientStateException(this);
    }
}