Dependencies missing from configurations - what am I doing wrong?

Help/Discuss
1

The Java plugin seems to be leaving out a few dependencies from various configurations. I first noticed this in a real project when my fatjar was missing some libraries but I can reproduce the problem in a new, empty directory.

Here are the full contents of my build.gradle:

apply plugin: "java" 

repositories {
    mavenCentral()
}

dependencies {
    compile 'org.apache.httpcomponents:httpcomponents-client:4.5',
            'org.apache.httpcomponents:httpcomponents-core:4.4.1',
            'cd.go.plugin:go-plugin-api:15.1.0',
            'com.google.code.gson:gson:2.3.1'

    testCompile 'junit:junit:4.10',
                'org.assertj:assertj-core:2.1.0',
                'org.powermock:powermock:1.6.2'
}

println("===============================")
println("compile dependencies:")
configurations.compile.each {
    println(it)
}
println("testCompile dependencies:")
configurations.testCompile.each {
    println(it)
}
println("===============================")

And here is the relevant command line output (slighty massaged for readability):

MacBook-Pro:temp $ gradle clean

===============================
compile dependencies:
~/.gradle/caches/modules-2/files-2.1/cd.go.plugin/go-plugin-api/15.1.0/…/go-plugin-api-15.1.0.jar
~/.gradle/caches/modules-2/files-2.1/com.google.code.gson/gson/2.3.1/…/gson-2.3.1.jar

testCompile dependencies:
~/.gradle/caches/modules-2/files-2.1/cd.go.plugin/go-plugin-api/15.1.0/…/go-plugin-api-15.1.0.jar
~/.gradle/caches/modules-2/files-2.1/com.google.code.gson/gson/2.3.1/…/gson-2.3.1.jar
~/.gradle/caches/modules-2/files-2.1/junit/junit/4.10/…/junit-4.10.jar
~/.gradle/caches/modules-2/files-2.1/org.assertj/assertj-core/2.1.0/…/assertj-core-2.1.0.jar
~/.gradle/caches/modules-2/files-2.1/org.hamcrest/hamcrest-core/1.1/…/hamcrest-core-1.1.jar

I would expect httpcomponents client and core to appear in the compile configuration and powermock to appear in the testCompile configuration.

When I run gradle dependencies , I see all the expected libraries in the right configuration classpaths, but gradle compileJava fails because of the missing dependencies (in the original project, not the empty directory). I can see the pom files for the missing libraries, but NOT the jar files, in ~/.gradle. I have tried blowing away ~/.gradle and ~/.m2, to no effect.

Am I using the Java plugin incorrectly? Any help would be appreciated.

I am using Gradle 2.4 with Java 7 on OSX Yosemite.

2

the http components client and httpcomponents core libraries are marked as packaging pom in the according pom file. That’s why gradle doesn’t resolve any artifacts for those libraries.

double check: https://repo1.maven.org/maven2/org/apache/httpcomponents/httpcomponents-core/4.4.1/httpcomponents-core-4.4.1.pom

and:
https://repo1.maven.org/maven2/org/apache/httpcomponents/httpcomponents-client/4.5/httpcomponents-client-4.5.pom

3

Thank you, that explains the contents of ~/.gradle.

But it doesn’t solve my main problem, which is that the libraries are not present in the Java plugin dependency configurations. I’m not even able to compile.

4

If you follow the guidance from @Rene and check those POM files, you’ll see a list of modules. Those submodules contain the artifacts that you might need to compile.

You’re likely looking for

'org.apache.httpcomponents:httpclient:4.5'
'org.apache.httpcomponents:httpcore:4.4.1'

instead of

'org.apache.httpcomponents:httpcomponents-client:4.5'
'org.apache.httpcomponents:httpcomponents-core:4.4.1'

You might also need an additional dependency if you are using something besides what is contained the main httpclient and httpcore JAR files.

1 Like
5

Ahhh. Thank you so much @Rene and @jjustinic.