toolchain {
                    languageVersion = JavaLanguageVersion.of(${testedJdkVersion.getMajorVersionNumber()})
                }
            }
        """
        file("processor/src/main/java/DummyAnnotation.java") << """
            package com.example;

            import java.lang.annotation.ElementType;
            import java.lang.annotation.Retention;
            import java.lang.annotation.RetentionPolicy;