分级MessageIOException

Question

在为特定的测试suite.Not使用gradle执行代码时，我遇到了以下错误:理解原因。任何帮助都很感激。

org.gradle.internal.remote.internal.MessageIOException: Could not write '/127.0.0.1:53644'.
        at org.gradle.internal.remote.internal.inet.SocketConnection.flush(SocketConnection.java:121)
        at org.gradle.internal.remote.internal.hub.MessageHub$ConnectionDispatch.run(MessageHub.java:300)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: An existing connection was forcibly closed by the remote host
        at sun.nio.ch.SocketDispatcher.write0(Native Method)
        at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51)
        at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
        at sun.nio.ch.IOUtil.write(IOUtil.java:51)
        at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)
        at org.gradle.internal.remote.internal.inet.SocketConnection$SocketOutputStream.writeWithNonBlockingRetry(SocketConnection.java:259)
        at org.gradle.internal.remote.internal.inet.SocketConnection$SocketOutputStream.writeBufferToChannel(SocketConnection.java:247)
        at org.gradle.internal.remote.internal.inet.SocketConnection$SocketOutputStream.flush(SocketConnection.java:241)
        at org.gradle.internal.remote.internal.inet.SocketConnection.flush(SocketConnection.java:119)

Answer 1

我在Dropwizard项目中使用gradle时也遇到了同样的错误。问题在于单元测试使用的是自己版本的config.yml文件，而配置的“真实”版本(以及应用程序代码)已经更改，使其不再与测试config.yml匹配。当我修复测试config.yml时，问题就消失了。我还看到了这个错误(再次在Dropwizard项目的gradle构建中运行测试任务)。关闭码头集装箱修复了这个问题(不知道原因，但这种情况至少发生了两次)。

Answer 2

我能够通过增加两件事来解决这个问题：

1. id "org.flywaydb.enterprise.flyway" version "8.5.2" build.gradle plugins
2. implementation 'mysql:mysql-connector-java:8.0.28' build.gradle dependencies