}

    void classesDir(TestFile dir) {
        dir.deleteDir()
        dir.createDir()
        dir.file("a.class").bytes = classOne()
    }

    void jar(TestFile file) {
        classpathBuilder.jar(file) {
            it.put("a.class", classOne())
        }
    }

    void modifiedJar(TestFile file) {
        classpathBuilder.jar(file) {
            it.put("b.class", classTwo())

	r0, _, _ := syscall.Syscall9(procRegEnumKeyExW.Addr(), 8, uintptr(key), uintptr(index), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(nameLen)), uintptr(unsafe.Pointer(reserved)), uintptr(unsafe.Pointer(class)), uintptr(unsafe.Pointer(classLen)), uintptr(unsafe.Pointer(lastWriteTime)), 0)
	if r0 != 0 {