Gradle plugin doesn't package runtime project dependency

[Dolvic]

Say there is a Gradle multi-project build with, for example, 2 sub-projects, projectA and projectB and projectA has a runtime dependency on projectB. If the build task for projectA is run without building projectB first, then the jar for projectB doesn't get included in the repackaged jar.

The output for running gradlew clean :projectA:build is as follows:

:projectB:clean
:projectA:clean
:projectA:compileJava
:projectA:processResources
:projectA:classes
:projectA:jar
:projectA:bootRepackage
:projectA:assemble
:projectB:compileJava
:projectB:processResources
:projectB:classes
:projectB:jar
:projectA:compileTestJava UP-TO-DATE
:projectA:processTestResources UP-TO-DATE
:projectA:testClasses UP-TO-DATE
:projectA:test UP-TO-DATE
:projectA:check UP-TO-DATE
:projectA:build

The projectB jar is only built by Gradle because it might be used in tests. When the bootRepackage task runs, the jar is not present and is not present in the final fat jar.

[wilkinsona]

The following two files will reproduce the problem:

build.gradle

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'org.springframework.boot:spring-boot-gradle-plugin:1.1.10.RELEASE'
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

project(':projectA') {
    apply plugin: 'spring-boot'
    dependencies {
        runtime project(':projectB')
    }
    bootRepackage {
        mainClass 'com.foo.Bar'
    }
}

project(':projectB') {
    apply plugin: 'java'
}

settings.gradle

include 'projectA', 'projectB'

An easy workaround is to mark the dependency on projectB as a compile dependency.