synchronization

来源： https://stackoverflow.com/questions/56615083/executing-a-function-after-an-another-asynchronous-function-finishes-in-javasc

来源： https://stackoverflow.com/questions/56615083/executing-a-function-after-an-another-asynchronous-function-finishes-in-javasc

来源： https://stackoverflow.com/questions/56615083/executing-a-function-after-an-another-asynchronous-function-finishes-in-javasc

来源： https://stackoverflow.com/questions/51798378/how-do-we-implement-wait-notify-in-swift

来源： https://stackoverflow.com/questions/51798378/how-do-we-implement-wait-notify-in-swift

来源： https://stackoverflow.com/questions/62483673/do-elasticsearch-crud-need-refresh

来源： https://stackoverflow.com/questions/62483673/do-elasticsearch-crud-need-refresh

来源： https://stackoverflow.com/questions/62483673/do-elasticsearch-crud-need-refresh

来源： https://stackoverflow.com/questions/17042051/synchronize-access-to-python-object

问题 This is my Java 1.6 class: public class Foo { private ArrayList<String> names; public void scan() { if (names == null) { synchronized (this) { this.names = new ArrayList<String>(); // fill the array with data } } } } Findbugs says: Inconsistent synchronization of com.XXX.Foo.names; locked 40% of time What does it mean and what I'm doing wrong? I'm trying to avoid problems when two or more clients call Foo.scan() at the same time. 回答1: It's beacuse you are only synchronizing when you set the