yahocen
commented
1 week ago Complete Java classes for debugging purposes 🙏
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.Attribute;
import javax.naming.directory.Attributes;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
import java.util.Hashtable;
public class Test {
public static String getDnsTxtValue(String domain) throws NamingException {
Hashtable<String, String> env = new Hashtable<>();
env.put("java.naming.factory.initial", "com.sun.jndi.dns.DnsContextFactory");
DirContext dirContext = new InitialDirContext(env);
//There is an exception here
Attributes attrs = dirContext.getAttributes(domain, new String[] { "TXT" });
Attribute txt = attrs.get("TXT");
NamingEnumeration<?> e = txt.getAll();
String value = null;
while (e.hasMore()) {
value = e.next().toString();
}
return value;
}
public static void main(String[] args) throws NamingException {
//The record type here is TXT
System.out.println(getDnsTxtValue("_acme-challenge.example.com"));
}
}
oubidar-Abderrahim
Describe the issue I am making a small tool to apply for a free SSL certificate through the ACME protocol. I am trying to package it locally using Graalvm. The version I am currently using is Graalvm-community-openjdk-17.0.9+9.1, which includes a feature to obtain Txt resolution record values in DNS through domain names. My code works normally without executing through Native, but the following error occurs after Native. I think this is a bug
Steps to reproduce the issue My code is as follows, please reproduce the error through the following code
Describe GraalVM and your environment:
More details
Add any other information about the problem here. Especially important are stack traces or log output. Feel free to link to gists or to screenshots if necessary.