How to import local external jar having spring cloud vault client dependency - spring-boot

Question

I have a "multi-module" Gradle project named "utils". In that, I have created a new sub-project that will be used as a client for Hashicorp's Vault. I'll use this jar to my Spring Boot microservices as a dependency.
The goal is to have a common configuration for Vault and use it in all the services.
My problem is when I try to auto-wire the VaultTemplate object (presuming it will be added from this jar), in one of my Spring Boot microservices (say secrets-management-service), I could not achieve that.
For development purposes, I have included the jar as a local dependency. I have included both the build.gradle files.
External Jar: vault-client
group = 'com.example.learning'
version = '1.0.0-SNAPSHOT'
buildscript {
ext {
springVersion = '2.4.4'
}
repositories {
mavenCentral()
}
dependencies {
classpath "org.springframework.boot:spring-boot-gradle-plugin:${springVersion}"
}
}
apply plugin: 'java-library'
apply plugin: 'idea'
apply plugin: 'maven-publish'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
sourceCompatibility = '1.8'
ext {
springCloudVersion = '2020.0.2'
}
repositories {
mavenCentral()
}
configurations {
compileOnly {
extendsFrom annotationProcessor
}
}
dependencyManagement {
imports {
mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
}
}
dependencies {
implementation 'org.springframework.cloud:spring-cloud-starter-vault-config'
compileOnly 'org.projectlombok:lombok'
annotationProcessor 'org.projectlombok:lombok'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
}
test {
useJUnitPlatform()
}
Microservice: secrets-management-service
plugins {
id 'org.springframework.boot' version '2.4.3'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
}
group = 'com.example.learning'
version = ''
sourceCompatibility = '1.8'
configurations {
compileOnly {
extendsFrom annotationProcessor
}
}
repositories {
mavenCentral()
}
bootJar {
setArchivesBaseName("secret-management-service")
version("")
}
dependencies {
compile fileTree(dir: "${projectDir}/libs", include: "*.jar")
implementation 'org.springframework.boot:spring-boot-starter-web'
compileOnly 'org.projectlombok:lombok'
annotationProcessor 'org.projectlombok:lombok'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
}
test {
useJUnitPlatform()
}

Answer 1

I found it myself. I had missed the below block in my vault-client jar and also forgot to remove "main" class.
bootJar {
enabled = false
}