!include once #1025810 // JavaParser

static CompilationUnit javaParseCompilationUnit(S java, bool withComments default false) {
  new JavaParser p;
  p.getParserConfiguration().setAttributeComments(withComments);
  ParseResult<CompilationUnit> r = p.parse(java);
  if (!r.isSuccessful())
    fail(str(r));
  ret r.getResult().get();
}