java.util.concurrent.TimeoutException: Idle timeout expired: 300000/300000 ms

Request idle timed out at 123000 ms.

That means there was no activity (read or write) for 123000 ms and the connection was closed.

如果不活动的链接大于123秒的话会自动关闭；

参考：https://stackoverflow.com/questions/47470724/unable-to-access-idempiere-java-io-ioexception-java-util-concurrent-timeoutex

解决：

http://blog.51cto.com/guowang327/1760784