带有依赖项的Jar Spring Boot Gradle

Question

I was trying to make a jar with dependencies because I was getting a NoClassDefFoundError when starting the jar with java -Dspring.config.location=myProperties -jar myJar , after a lot of searching I found that I can achieve this using the following solution in the jar block:

from{
        configurations.runtimeClasspath.collect {it.isDirectory() ? it : zipTree(it)}
    }

And all good with this except for the amount of time when building the jar (1 minute aprox), and according with this answer: Gradle: Build 'fat jar' with Spring Boot Dependencies I don't need to create an additional task, is enough with the bootRepackage but I'm getting the error that I mentioned above with bootRepackage and I don't understand why.

This is the content of my build.gradle and I'm using spring boot 1.5.15:

/*
 * This file was generated by the Gradle 'init' task.
 */
buildscript {
    ext.springBootVersion = '1.5.15.RELEASE'
    ext.managementVersion = '1.0.6.RELEASE'
    ext.axis2Version = '1.7.9'
    repositories {
        mavenCentral()
        mavenLocal()

    }
    dependencies {
        classpath "org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}"
        //classpath "io.spring.gradle:dependency-management-plugin:${managementVersion}"
        //classpath "com.intershop.gradle.wsdl:wsdl-gradle-plugin:2.0.1"
    }
}

plugins {
    id 'java'
    id 'maven'
    id 'org.springframework.boot' version '1.5.15.RELEASE'
    id 'io.spring.dependency-management' version '1.0.6.RELEASE'

} 

configurations{
    implementation{
        exclude group: 'javax.servlet', module: 'servlet-api'
    }
}

dependencies {

    implementation "org.springframework.boot:spring-boot-starter:${springBootVersion}"
    implementation 'org.springframework.integration:spring-integration-mongodb'
    implementation 'org.springframework.integration:spring-integration-amqp'


    testImplementation "org.springframework.boot:spring-boot-starter-test:${springBootVersion}"
    testImplementation 'org.mockito:mockito-core:2.6.1'

    implementation 'org.apache.ws.commons.axiom:axiom-jaxb:1.2.20'    

    implementation('org.apache.axis2:axis2-kernel:1.7.9'){
        exclude group: 'javax.servlet', module: 'servlet-api'
        //The exclude above don't work
    }

    implementation "org.apache.axis2:axis2-kernel:${axis2Version}"

    implementation "org.apache.axis2:axis2-wsdl2code-maven-plugin:${axis2Version}"
    implementation "org.apache.axis2:axis2-transport-http:${axis2Version}"


}

wsdl {
    axis2 {
        genNameAxis2 {
           //someAxis2Tasks
        }
    }
}

wsdl2java {

    //someWsdlTasks   
}

wsdl2javaExt {
    cxfVersion = "3.2.1"
}

jar {
    manifest{
        attributes ('Main-Class': 'dummy.Application')
    }

    from{
        configurations.runtimeClasspath.collect {it.isDirectory() ? it : zipTree(it)}
    }
    archiveBaseName = 'projectName'
    archiveVersion = '1.0.0'
}

bootRepackage{
    mainClass = 'dummy.Application'
    //classifier = 'boot' I'm getting an error with this argument
}

repositories {
    mavenLocal()    
}


group = 'dummy.group'
version = '1.0.0-SNAPSHOT'
sourceCompatibility = '1.8'
targetCompatibility = '1.8'

Thank you in advance.

Answer 1

I have this same problem after upgrading to Gradle 5 and using 'implementation' instead of 'compile' for my dependencies.

Gradle built a main jar with no sub-project jars or dependencies (no BOOT-INF/lib directory at all). Changing 'implementation' back to 'compile' in the parent project only fixed the problem (with no other changes).

So, apparently, the Spring Boot 1.5.9 Gradle plugin does not work with the new implementation configuration. Note that Spring Boot 2 and the new bootJar task work fine, this issue is only with the old bootRepackage and the new implementation configuration.