how to share code in workflowLibs in Jenkins using workflow plugin - jenkins-workflow

Question

In my workflowLibs directory I have a few files:
src/org/inin/Pipeline.groovy
src/org/inin/Build.groovy
src/org/inin/Test.groovy
The Build.groovy look like this:
package org.inin;
def DoBuild(foo){
echo "I am building: $foo"
}
The Test.groovy look like this:
package org.inin;
def DoTest(foo){
echo "I am testing: $foo"
}
I want my builds to do something like this:
def pipeline = new org.inin.Pipeline()
pipeline.DoBuild() or pipeline.Build.DoBuild()
pipeline.DoTest() or pipeline.Test.DoTest()
But I don't know how to make the Pipeline.groovy reference files in it's own directory.
I tried doing this:
package org.inin;
load "Build.groovy"
//evaluate(new File("./Build.groovy"))
But I always get:
java.lang.NoSuchMethodError: No such DSL method DoBuild found among ...
What's the proper way to do share code among groovy files in the workflowLibs directory structure?

Answer 1

I ended up doing some hackery:
src/org/inin/Pipeline.groovy:
package org.inin;
def getBuild(){
return new Build();
}
def getTest(){
return new Test();
}
src/org/inin/Build.groovy:
package org.inin;
def DoMavenBuild(gitRepo, gitBranch, pomName ){
...
}
src/org/inin/Test.groovy:
package org.inin;
def DoTest(){
...
}
And in the job itself:
def pipeline = new org.inin.Pipeline();
pipeline.build.DoMavenBuild(...);
pipeline.test.DoTest();