JAVA multithreading implements highly concurrent local caching utility classes with read-write locks provided by JDK1.5

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package com.study;import java.util.LinkedHashMap;import java.util.Map;import java.util.concurrent.locks.ReadWriteLock;import java.util.concurrent.locks.ReentrantReadWriteLock;public class ReadWriteLockDemo { private static Map cacheMap = new LinkedHashMap(); public static void main(String[] args) { ReadWriteLockDemo readWriteLockDemo = new ReadWriteLockDemo(); final CacheUtils cacheUtils = readWriteLockDemo.new CacheUtils(); Thread thread = new Thread(new Runnable() { @Override public void run() { for(Integer index = 0;index