Could not find TLS ALPN provider; no working netty-tcnative, Conscrypt, or Jetty NPN/ALPN available
问题 What version of gRPC are you using? 1.13.1 I am using java 8 to build an executable jar. Below is the java version: $ /usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/bin/java -version openjdk version "1.8.0_171" OpenJDK Runtime Environment (build 1.8.0_171-8u171-b11-2~14.04-b11) OpenJDK 64-Bit Server VM (build 25.171-b11, mixed mode) I am using gradle 3.4.1 to generate the jar as follows: /opt/gradle-3.4.1/bin/gradle jar -Dorg.gradle.java.home=/usr/lib/jvm/java-1.8.0-openjdk-amd64/ Below are the