Have a Exception in java After importing the certificate

00uv2dq1dg5YHBFIx5d6 — Wed, 23 Jun 2021 08:27:39 GMT

I imported the certificate to java trusted certificates, it shows the some error.is it due to certificate is Self-signed ?.

And is there any way to overcome this problem other than overriding SSL certificate verification.

Is there any way to add SAN to the certificate

I have searched in some website but it shows it is due to the Hostname or common name mismatch but can you tell me how to rectify it

this is the program used:

package A;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSession;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {

public static void main(String[] args) throws IOException {
System.out.println(System.getProperty("java.home"));
String https_url = "https://10.1.60.60/api/fdm/latest/fdm/token";
String jsonInputString = "{\"grant_type\": \"password\", \"username\": \"admin\", \"password\": \"Ashok@188616\"}";
URL url = new URL(https_url);
HttpsURLConnection con = (HttpsURLConnection)url.openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("Content-Type", "application/json");
con.setRequestProperty("Accept", "application/json");

con.setDoOutput(true);

try(OutputStream os = con.getOutputStream()) {
byte[] input = jsonInputString.getBytes("utf-8");
os.write(input, 0, input.length);
}
print_content(con);

}
private static String print_content(HttpsURLConnection con){
if(con!=null){

try {

// System.out.println("****** Content of the URL ********");

BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream()));

String input;
StringBuffer res=new StringBuffer();

while ((input = br.readLine()) != null){
res.append(input);
}

System.out.println(res.toString());
String auth;
try {/*
JSONObject myres=new JSONObject(res.toString());
if(myres.has("access_token")) {
auth = myres.getString("access_token");
}else{
auth=null;
}*/
Pattern p1=Pattern.compile("\"access_token\":\"(.*?)\"");
Matcher m1=p1.matcher(res.toString());
m1.find();
auth = m1.group(1);
System.out.println(auth);

}
catch(Exception e){
e.printStackTrace();
return null;
}
//System.out.println(myres.getString("access_token"));
br.close();
return auth;

} catch (IOException e) {
e.printStackTrace();
return null;
}
}else{
return null;
}
}
}

the exception is attached below:-

Re: Have a Exception in java After importing the certificate

00uv2dq1dg5YHBFIx5d6 — Wed, 23 Jun 2021 10:24:05 GMT

this error happens when I try to use rest Api in java

topic Have a Exception in java After importing the certificate in Network Security

Have a Exception in java After importing the certificate

Re: Have a Exception in java After importing the certificate