Gradle task dependsOn does not work - gradle

Question

I want to setup simple dependency between tasks.
My build.gradle
apply plugin: 'java'
sourceCompatibility = 1.8
version = '1.0'
repositories {
mavenCentral()
}
task('Second', dependsOn: 'First') {
println "Second"
}
task('First') {
println "First"
}
As a result I expect First and than Second.
But I've got:
$ gradle build
Second
First
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:jar UP-TO-DATE
:assemble UP-TO-DATE
:compileTestJava UP-TO-DATE
:processTestResources UP-TO-DATE
:testClasses UP-TO-DATE
:test UP-TO-DATE
:check UP-TO-DATE
:build UP-TO-DATE
What am I doing wrong?
Thanks for help.

Answer 1

Still the same error.. You're at configuration phase. Add actions to task and everything will be fine. This will work:
apply plugin: 'java'
sourceCompatibility = 1.8
version = '1.0'
repositories {
mavenCentral()
}
task('Second', dependsOn: 'First') << {
println "Second"
}
task('First') << {
println "First"
}
This is a configuration phase:
task t1 {
println "t1"
}
Code in configuration phase is executed before action. Adding action is done with << (leftShift) operator.
task t1 << {
println "t1"
}
Here are the docs.
<< is just overridden operator do doLast method. Without it it will be:
apply plugin: 'java'
sourceCompatibility = 1.8
version = '1.0'
repositories {
mavenCentral()
}
task('Second', dependsOn: 'First') {
doLast {
println "Second"
}
}
task('First') {
doLast {
println "First"
}
}
I also encourage you to read this blog post.