加入@SeataCloudApplication项目启动时 main线程被阻塞，项目无法启动

一、该问题的重现步骤是什么？

加入@SeataCloudApplication项目启动时 main线程被阻塞

二、通过arthas工具查看被阻塞的线程发现一下错误

[arthas@11748]$ thread -b
"timeoutChecker_1_1" Id=34 BLOCKED on java.util.concurrent.ConcurrentHashMap@5459db69 owned by "main" Id=1
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getSingletonFactoryBeanForTypeCheck(AbstractAutowireCapableBeanFactory.java:986)
   -  blocked on java.util.concurrent.ConcurrentHashMap@5459db69
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryBean(AbstractAutowireCapableBeanFactory.java:884)
   at org.springframework.beans.factory.support.AbstractBeanFactory.isTypeMatch(AbstractBeanFactory.java:619)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:536)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:503)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:480)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:473)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveNamedBean(DefaultListableBeanFactory.java:1159)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveBean(DefaultListableBeanFactory.java:420)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:349)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:342)
   at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1127)
   at io.seata.spring.boot.autoconfigure.provider.SpringBootConfigurationProvider.get(SpringBootConfigurationProvider.java:93)
   at io.seata.spring.boot.autoconfigure.provider.SpringBootConfigurationProvider.access$100(SpringBootConfigurationProvider.java:43)
   at io.seata.spring.boot.autoconfigure.provider.SpringBootConfigurationProvider$1.intercept(SpringBootConfigurationProvider.java:56)
   at io.seata.config.FileConfiguration$$EnhancerByCGLIB$$862af1eb.getConfig(<generated>)
   at io.seata.discovery.registry.RegistryFactory.buildRegistryService(RegistryFactory.java:52)
   at io.seata.discovery.registry.RegistryFactory.getInstance(RegistryFactory.java:43)
   -  locked java.lang.Class@1ce2cd56 <---- but blocks 2 other threads!
   at io.seata.core.rpc.netty.NettyClientChannelManager.getAvailServerList(NettyClientChannelManager.java:216)
   at io.seata.core.rpc.netty.NettyClientChannelManager.reconnect(NettyClientChannelManager.java:162)
   at io.seata.core.rpc.netty.AbstractNettyRemotingClient$1.run(AbstractNettyRemotingClient.java:106)
   at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
   at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
   at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source)
   at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
   at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
   at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
   at java.lang.Thread.run(Unknown Source)

   Number of locked synchronizers = 1
   - java.util.concurrent.ThreadPoolExecutor$Worker@6ff415ad