Question

I have a method that takes a string and a closure, which I include in my plugin convention:

def someMethod( String obj, Closure closure) {
    println('HERE I AM')
    confFileTree = project.fileTree( obj, closure )
}

From a Junit test I call it like so:

project.convention.plugins.license.licenseFiles( 'src') {
    include "main/java/**"
    include "main/resources/*.properties"
    exclude "**/Licensed.java"
}

I know the method is called because ‘HERE I AM’ is printed. But I then get an error that says:

org.gradle.api.internal.MissingMethodException: 
    Could not find method fileTree() for arguments 
    [src, nl.javadude.gradle.plugins.license.tasks.LicenseTaskTest$_shouldScanFilesForLicenseWithExclude_closure1@3cbdb6ae] 
    on root project 'test'.

I should state that this code originally just called the Closure form of fileTree, with “from ‘src'” in the closure, which works fine, but Gradle milestone 8 is telling me that it is a deprecated method.

Answer 1

Are you sure that the test is running against m8? In any case, here are a few suggestions for improvement (since I already know what you are trying to achieve):

• I don’t think you want to construct your own file tree. You just want the user to pass a ‘filter’ closure (like in your example) which you then apply to the source directory set (e.g. sourceSets.main.java) with the FileTree.matching(Closure) method. You’ll get back a new file tree with the filter applied.
• I recommend to use an extension rather than a convention object
• You don’t need the long-winded syntax when accessing convention objects or extensions from Groovy code. In your unit test example, you can just say project.licenseFiles(...) {...}.