import org.gradle.workers.WorkAction;
            import org.gradle.test.FileHelper;

            abstract public class TypedWorkAction implements WorkAction<TypedParameter> {
                public void execute() {
                    FileHelper.write("foo", getParameters().getOutputFile().getAsFile().get());
                }
            }
        """

        ])

        parallelWorkAction = fixture.workActionClass("ParallelWorkAction", "org.gradle.test", parallelParameterType)
        parallelWorkAction.with {
            imports += ["java.net.URI", "org.gradle.test.FileHelper"]
            extraFields = "private static final String id = UUID.randomUUID().toString()"
            action = """
                System.out.println("Running \${parameters.itemName}...")

        """
        workerClass.action = """
            for (String name : getParameters().getFiles()) {
                File outputFile = new File(getParameters().getOutputDir(), name);
                org.gradle.test.FileHelper.write(id, outputFile);
            }
        """
        return workerClass
    }

    WorkActionClass getWorkActionThatFails(Class<? extends RuntimeException> exceptionClass, String message) {

        ])

        parallelWorkAction = fixture.workActionClass("ParallelWorkAction", "org.gradle.test", parallelParameterType)
        parallelWorkAction.with {
            imports += ["java.net.URI", "org.gradle.test.FileHelper"]
            extraFields = "private static final String id = UUID.randomUUID().toString()"
            action = """
                System.out.println("Running \${parameters.itemName}...")

        return Instant.ofEpochMilli(timeMs)
    }

    String getMultipleActionTaskType() {
        return """
            import org.gradle.test.FileHelper

            class MultipleWorkItemTask extends DefaultTask {
                @Internal
                def isolationMode = 'noIsolation'

                @Inject

            $fixture.parameterClass
        """
        builder.sourceFile('AnotherFoo.java') << """
            class AnotherFoo extends org.gradle.other.Foo { }
        """
        builder.sourceFile("org/gradle/test/FileHelper.java") << """
            $fixture.fileHelperClass
        """
        builder.buildJar(workActionJar)

        fixture.addImportToBuildScript("org.gradle.test.TestWorkAction")
    }