build.gradle

plugins {
    id 'java'
    id 'org.springframework.boot' version '3.1.1'
    id 'io.spring.dependency-management' version '1.1.3'
    id 'com.google.protobuf' version '0.9.4'
}

group = 'com.example'
version = '0.0.1-SNAPSHOT'

java {
    sourceCompatibility = '17'
}

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
}

dependencies {

    implementation 'io.github.lognet:grpc-spring-boot-starter:5.1.4'

    implementation 'org.springframework.boot:spring-boot-starter'

    /**
     * The issue occurs under the condition of having a dependency on spring-boot-starter-validation.
     * While in this sample project, the dependency is not required,
     * it is required in my production code.
     */
    implementation 'org.springframework.boot:spring-boot-starter-validation'

    compileOnly 'org.projectlombok:lombok'
    annotationProcessor 'org.projectlombok:lombok'

    implementation 'javax.annotation:javax.annotation-api:1.3.2'
}

protobuf {
    protoc {
        artifact = 'com.google.protobuf:protoc:3.22.3'
    }
    plugins {
        grpc {
            artifact = 'io.grpc:protoc-gen-grpc-java:1.57.0'
        }
    }
    generateProtoTasks {
        ofSourceSet('main')*.plugins {
            grpc {}
        }
    }
}

sourceSets {
    main {
        java {
            srcDirs 'src/main/java'
            srcDirs 'build/generated/source/proto/main/grpc'
            srcDirs 'build/generated/source/proto/main/java'
        }
    }
}

tasks.named('test') {
    useJUnitPlatform()
}