) {
                }
            }
        """

        when:
        Compilation compilation = compile(givenSource)

        then:
        assertThat(compilation).succeededWithoutWarnings()
        assertThat(compilation)
            .generatedFile(CLASS_OUTPUT, "META-INF/services/org.gradle.internal.classpath.intercept.FilterableCallInterceptor")
            .contentsAsString(StandardCharsets.UTF_8)

                    return "";
                }
            }
        """

        when:
        Compilation compilation = compile(givenSource)

        then:
        assertThat(compilation).succeededWithoutWarnings()
        assertThat(compilation)
                .generatedFile(CLASS_OUTPUT, "META-INF/gradle/instrumentation/instrumented-classes.txt")
                .contentsAsString(StandardCharsets.UTF_8)

        then:
        def expectedJvmInterceptors = source """
            package my;
            public class InterceptorDeclaration_GroovyBytecodeImpl {
            }
        """
        assertThat(compilation).succeededWithoutWarnings()
        assertThat(compilation)
            .generatedSourceFile(fqName(expectedJvmInterceptors))
            .containsElementsIn(expectedJvmInterceptors)
    }

                }
            }
        """

        when:
        Compilation compilation = compile(givenFirstSource, givenSecondSource)

        then:
        assertThat(compilation).succeededWithoutWarnings()
        assertThat(compilation)
            .generatedFile(CLASS_OUTPUT, "META-INF/services/org.gradle.internal.instrumentation.api.jvmbytecode.JvmBytecodeCallInterceptor\$Factory")