Add guava bom

Author: genuss

build.gradle

@@ -13,6 +13,9 @@ buildscript {
 
         // https://github.com/grpc/grpc-java/releases
         grpcVersion = '1.35.0'
+
+        // https://github.com/google/guava/releases
+        guavaVersion = '30.1-jre'
         // https://github.com/protocolbuffers/protobuf/releases
         protobufVersion = '3.14.0'
         protobufGradlePluginVersion = '0.8.12'
@@ -156,6 +159,7 @@ allprojects { project ->
                 mavenBom "org.springframework.boot:spring-boot-starter-parent:${springBootVersion}"
                 mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
                 mavenBom "com.google.protobuf:protobuf-bom:${protobufVersion}"
+                mavenBom "com.google.guava:guava-bom:${guavaVersion}"
                 mavenBom "io.grpc:grpc-bom:${grpcVersion}"
                 mavenBom "org.junit:junit-bom:5.7.0"
             }

grpc-common-spring-boot/build.gradle

@@ -15,7 +15,7 @@ dependencies {
     api('org.springframework.boot:spring-boot-starter')
     optionalSupportImplementation('org.springframework.boot:spring-boot-starter-actuator')
     api('io.grpc:grpc-core')
-    optionalSupportImplementation('com.google.guava:guava:30.1-jre')
+    optionalSupportImplementation('com.google.guava:guava')
 
     optionalSupportImplementation('org.springframework.cloud:spring-cloud-starter-sleuth')
     optionalSupportImplementation('io.zipkin.brave:brave-instrumentation-grpc')