FinalizableReference /* * Copyright (C) 2007 The Guava 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 * * h…

/* * Copyright (C) 2008 The Guava 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…

转:http://www.iflym.com/index.php/java-programe/201407140001.html 1 何为ReferenceQueue 在java的引用体系中,存在着强引用,软引用,虚引用,幽灵引用,这4种引用类型.在正常的使用过程中,我们定义的类型都是强引用的,这种引用类型在回收中,只有当其它对象没有对这个对象的引用时,才会被GC回收掉.简单来说,对于以下定义: 1 2 Object obj = new Object(); Ref ref = new Ref(o…