com.esotericsoftware.kryo.kryo5.objenesis.instantiator.SerializationInstantiatorHelper Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of kryo5 Show documentation

Fast, efficient Java serialization. This is the version specific Kryo artifact.

The newest version!

/*
 * Copyright 2006-2022 the original author or authors.
 *
 * 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.esotericsoftware.kryo.kryo5.objenesis.instantiator;

import java.io.Serializable;

/**
 * Helper for common serialization-compatible instantiation functions
 * 
 * @author Leonardo Mesquita
 */
public class SerializationInstantiatorHelper {

   /**
    * Returns the first non-serializable superclass of a given class. According to Java Object
    * Serialization Specification, objects read from a stream are initialized by calling an
    * accessible no-arg constructor from the first non-serializable superclass in the object's
    * hierarchy, allowing the state of non-serializable fields to be correctly initialized.
    *
    * @param  Type to instantiate
    * @param type Serializable class for which the first non-serializable superclass is to be found
    * @return The first non-serializable superclass of 'type'.
    * @see java.io.Serializable
    */
   public static  Class getNonSerializableSuperClass(Class type) {
      Class result = type;
      while(Serializable.class.isAssignableFrom(result)) {
         result = result.getSuperclass();
         if(result == null) {
            throw new Error("Bad class hierarchy: No non-serializable parents");
         }
      }
      return result;

   }
}