sourceWithFileSuffixForProject(bSuffix, "impl", "$bCompileStatic class B1 { void m1() { A a = new A(); a.m1(); }; }")
        sourceWithFileSuffixForProject("java", "impl", "class C1 extends B1 {}")
        sourceWithFileSuffixForProject("java", "impl", "class D1 extends C1 { static boolean getCache() { return true; } }")

    }

    File sourceWithFileSuffix(String suffix, String... classBodies) {
        return sourceForLanguageWithSuffixForProject(language, suffix, "", classBodies)
    }

    File sourceWithFileSuffixForProject(String suffix, String project, String... classBodies) {
        return sourceForLanguageWithSuffixForProject(language, suffix, project, classBodies)
    }