1. Request cannot be executed; I/O reactor status: STOPPED
RestClient was closed
2. SpringBoot After starting Stopping service [Tomcat]
Plus log4j configuration, revealing more information to locate the problem. New Configuration log4j.properties in the resources directory
log4j.rootLogger=INFO, A1
log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A1.layout=org.apache.log4j.PatternLayout