abstract class MadeUpPlugin implements Plugin<Settings> {

    @Inject
    protected abstract JavaToolchainResolverRegistry getToolchainResolverRegistry();

    void apply(Settings settings) {
        settings.getPlugins().apply("jvm-toolchain-management")

        JavaToolchainResolverRegistry registry = getToolchainResolverRegistry()
        registry.register(MadeUpResolver.class)
    }
}

    @Inject
    protected abstract JavaToolchainResolverRegistry getToolchainResolverRegistry(); // <2>

    public void apply(Settings settings) {
        settings.getPlugins().apply("jvm-toolchain-management"); // <3>

        JavaToolchainResolverRegistry registry = getToolchainResolverRegistry();
        registry.register(JavaToolchainResolverImplementation.class);
    }
}

                @Inject
                protected abstract JavaToolchainResolverRegistry getToolchainResolverRegistry();

                void apply(Settings settings) {
                    settings.getPlugins().apply("jvm-toolchain-management");

                    JavaToolchainResolverRegistry registry = getToolchainResolverRegistry();
                    registry.register(${resolverClass}.class);
                }
            }

                @Inject
                protected abstract JavaToolchainResolverRegistry getToolchainResolverRegistry();

                void apply(Settings settings) {
                    settings.getPlugins().apply("jvm-toolchain-management");

                    JavaToolchainResolverRegistry registry = getToolchainResolverRegistry();
                    registry.register(FakeResolver.class);
                }
            }