rootDirectory = null;
            }
            if (importSource.getPath() != null && rootDirectory != null) {
                Path sourcePath = importSource.getPath();
                if (sourcePath.startsWith(rootDirectory)) {
                    problems.add(
                            Severity.WARNING,
                            ModelProblem.Version.BASE,

                return null;
            }

            if (importSource instanceof FileModelSource && request.getRootDirectory() != null) {
                Path sourcePath = ((FileModelSource) importSource).getPath();
                if (sourcePath.startsWith(request.getRootDirectory())) {
                    problems.add(new ModelProblemCollectorRequest(Severity.WARNING, ModelProblem.Version.BASE)

        buildScript '''
            task copy(type: Copy) {
                from 'path'
                into 'dest'
                filesMatching ('**/a*') {
                    path = sourcePath.replace('txt', 'log')
                }
            }
        '''.stripIndent()

        when:
        run 'copy'

        then:

 * You can no longer use `-source-path` as a generic compiler argument — use link:{groovyDslPath}/org.gradle.api.tasks.compile.CompileOptions.html#org.gradle.api.tasks.compile.CompileOptions:sourcepath[CompileOptions.sourcepath] instead.