* constructor with the {@code @Inject} annotation:
 * <pre>
 * public abstract class MyValueSource implements ValueSource&lt;String, ValueSourceParameters.None&gt; {
 *     private final ExecOperations execOperations;
 *
 *     {@literal @}Inject
 *     public MyValueSource(ExecOperations execOperations) {
 *         this.execOperations = execOperations;
 *     }
 *
 *     {@literal @}Override

            plugins.apply(my.MyPlugin)

            abstract class MyValueSource implements ValueSource<String, ValueSourceParameters.None> {

                @Override
                String obtain() {
                    return "Foo"
                }
            }

            def a = providers.of(MyValueSource) {}
            println(a.get())
        """

        file("b/build.gradle") << """