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  * Copyright 2014 dc-square GmbH
  * 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package com.dcsquare.hivemq.spi.annotations;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

This is an informal annotation which indicates that the method returns a read-only type.

If you encounter this on a method which returns a java.util.Collection, this collection is expected to be immutable and must not be modified.

Dominik Obermaier
public @interface ReadOnly {
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