This debug code:
// WrappingParameterizedRunner.java L313
/* ** DEBUG export class to /tmp/x.class ** */
try {
FileOutputStream fos = new FileOutputStream("/tmp/x.class");
fos.write(clazzBytes);
fos.close();
} catch (Exception e1) {
e1.printStackTrace();
}
/* ** /DEBUG ** */
throws on Windows immediately, /tmp doesn't exist. Could be replaced with the Files.createTempFile() or similar.