receivedProblems = null
    }

    def enableProblemsApiCheck() {
        enableProblemsApiCheck = true
        buildOperationsFixture = new BuildOperationsFixture(executer, temporaryFolder)
    }

    def disableProblemsApiCheck() {
        enableProblemsApiCheck = false
    }

    def isProblemsApiCheckEnabled() {
        enableProblemsApiCheck
    }

    /**

    public static final String REGISTRATION_UNSUPPORTED = 'validation:configuration-cache-registration-of-listener-on-gradle-buildfinished-is-unsupported'

    @Override
    def setup() {
        enableProblemsApiCheck()
    }

    def "problems are reported through the Problems API"() {
        given:
        buildFile """
            gradle.buildFinished { }

            task run
        """

        when:

class TaskInputFilePropertiesIntegrationTest extends AbstractIntegrationSpec implements ValidationMessageChecker {
    def setup() {
        expectReindentedValidationMessage()
        enableProblemsApiCheck()
    }

    def "allows optional @#annotation.simpleName to have null value"() {
        buildFile << """
            import ${GetInputFilesVisitor.name}
            import ${TaskPropertyUtils.name}

     */
    private final Map<String, Integer> visitedFileLocations = [:]

    def setup() {
        enableProblemsApiCheck()

        buildFile << """
            plugins {
                id 'java'
            }

            tasks {
                compileJava {
                    options.compilerArgs += ["-Xlint:all"]

            include 'lib'
            include 'util'
            include 'app'
        """
    }

    def "task cannot write into transform directory"() {
        enableProblemsApiCheck()
        def forbiddenPath = ".transforms/not-allowed.txt"

        buildFile << """
            subprojects {
                task badTask {
                    def projectLayout = project.layout