/* * Copyright 2015 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 * * https://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 org.springframework.batch.item.support;import org.springframework.batch.item.ExecutionContext;import org.springframework.batch.item.ItemStreamReader;import org.springframework.batch.item.NonTransientResourceException;import org.springframework.batch.item.ParseException;import org.springframework.batch.item.UnexpectedInputException;import org.springframework.beans.factory.InitializingBean;import org.springframework.util.Assert;/** *  * This is a simple ItemStreamReader decorator with a synchronized ItemReader.read()  * method - which makes a non-thread-safe ItemReader thread-safe. *  * However, if reprocessing an item is problematic then using this will make a job not