expand CI

build.gradle

@@ -26,13 +26,10 @@ plugins {
 def grpcVersion = '1.20.0' 
 
 repositories {
-    //maven{ url "https://maven-central.storage-download.googleapis.com/repos/central/data/" }
-    //mavenLocal()
     mavenCentral()
 }
 
 dependencies {
-    // This dependency is found on compile classpath of this component and consumers.
     implementation 'com.google.guava:guava:27.0.1-jre'
 
     // Use JUnit test framework