grpc坑之Could not find TLS ALPN provider; no working netty-tcnative

在使用grpc過程中偶爾會遇到下面報錯：

 Initialization of bean failed; nestedexception is java.lang.IllegalStateException: Could not find TLS ALPN provider; no working netty-tcnative, Conscrypt, or Jetty NPN/ALPN available
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:581)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:548)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1242)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1230)
        at com.shein.RpcDemoApplication.main(RpcDemoApplication.java:14)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)
Caused by: java.lang.IllegalStateException: Could not find TLS ALPN provider; no working netty-tcnative, Conscrypt, or Jetty NPN/ALPN available
        at io.grpc.netty.GrpcSslContexts.defaultSslProvider(GrpcSslContexts.java:258)
        at io.grpc.netty.GrpcSslContexts.configure(GrpcSslContexts.java:171)
        at io.grpc.netty.GrpcSslContexts.forClient(GrpcSslContexts.java:120)
        at net.devh.boot.grpc.client.channelfactory.NettyChannelFactory.configureSecurity(NettyChannelFactory.java:115)
        at net.devh.boot.grpc.client.channelfactory.NettyChannelFactory.configureSecurity(NettyChannelFactory.java:47)
        at net.devh.boot.grpc.client.channelfactory.AbstractChannelFactory.configure(AbstractChannelFactory.java:154)
        at net.devh.boot.grpc.client.channelfactory.AbstractChannelFactory.newManagedChannel(AbstractChannelFactory.java:131)
        at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660)
        at net.devh.boot.grpc.client.channelfactory.AbstractChannelFactory.createChannel(AbstractChannelFactory.java:98)
        at net.devh.boot.grpc.client.inject.GrpcClientBeanPostProcessor.processInjectionPoint(GrpcClientBeanPostProcessor.java:110)
        at net.devh.boot.grpc.client.inject.GrpcClientBeanPostProcessor.postProcessBeforeInitialization(GrpcClientBeanPostProcessor.java:77)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:416)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1686)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:573)
        ... 23 common frames omitted

出現上面的錯誤，分別有以下幾種情況
第一種：grpc服務地址沒有配置，這種情況要麼是搞忘記配置，或者沒有加載配置，也可能是是配置信息存儲在配置中心，且服務中發佈到docker容器中且繼承了istio，這種是域名相關配置istio還沒初始化，從而導致拉取配置失敗
第二種：netty-tcnative相關的maven庫沒引入
根據grpc對應的版本，有以下對應關係

詳情可以查看下面連接https://github.com/grpc/grpc-java/blob/master/SECURITY.md
由於我用的netty-grpc是1.15.1，所以這裏配置是2.0.12.Final，如下

<dependency>
    <groupId>io.netty</groupId>
    <artifactId>netty-tcnative</artifactId>
    <version>2.0.12.Final</version>
</dependency>

第三種：如果是發佈在容器中，需要更換jdk基礎鏡像
 openjdk:8-jdk-alpine 修改爲 openjdk:8
https://gitmemory.com/issue/grpc/grpc-java/5369/493463266