Java Httpurlconnection

[David Holmes]

Hi,

Under the assumption that this question might actually involve a 
behavioural difference across different platform implementations of the 
JDK, I'd suggest asking it on the net-dev at openjdk.java.net mailing list.

But be sure the ARM system and Intel system are being compared under the 
same conditions, they have to be on the same network with the same (or 
near enough same) OS and with the same network configuration. A 10s 
delay is very often a DNS timeout.

Cheers,
David

On 21/08/2019 4:58 pm, Somshekar C Kadam wrote:
> Hi All,
> Even if I try this simple httpsurlconnection java program to print content
> it takes more than 10 seconds on ARM not in intel. Not sure why please help
> 
> HttpsClient.java
> ========================
> import java.net.MalformedURLException;
> import java.net.URL;
> import java.security.cert.Certificate;
> import java.io.*;
> 
> import javax.net.ssl.HttpsURLConnection;
> import javax.net.ssl.SSLPeerUnverifiedException;
> 
> public class HttpsClient {
> 
>     public static void main(String[] args)
>     {
>          new HttpsClient().testIt();
>     }
> 
>     private void testIt(){
> 
>        //String https_url = "https://www.google.com/";
>        String https_url = "
> https://transparencyreport.google.com/https/overview?hl=en";
>        URL url;
>        try {
> 
>      url = new URL(https_url);
>      HttpsURLConnection con = (HttpsURLConnection)url.openConnection();
> 
>      //dumpl all cert info
>      print_https_cert(con);
> 
>      //dump all the content
>      print_content(con);
> 
>        } catch (MalformedURLException e) {
>      e.printStackTrace();
>        } catch (IOException e) {
>      e.printStackTrace();
>        }
> 
>     }
> 
>     private void print_https_cert(HttpsURLConnection con){
> 
>      if(con!=null){
> 
>        try {
> 
> System.out.println("Response Code : " + con.getResponseCode());
> System.out.println("Cipher Suite : " + con.getCipherSuite());
> System.out.println("\n");
> 
> Certificate[] certs = con.getServerCertificates();
> for(Certificate cert : certs){
>    System.out.println("Cert Type : " + cert.getType());
>    System.out.println("Cert Hash Code : " + cert.hashCode());
>    System.out.println("Cert Public Key Algorithm : "
>                                      + cert.getPublicKey().getAlgorithm());
>    System.out.println("Cert Public Key Format : "
>                                      + cert.getPublicKey().getFormat());
>    System.out.println("\n");
> }
> 
> } catch (SSLPeerUnverifiedException e) {
> e.printStackTrace();
> } catch (IOException e){
> e.printStackTrace();
> }
> 
>       }
> 
>     }
> 
>     private void 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;
> 
>    while ((input = br.readLine()) != null){
>       System.out.println(input);
>    }
>    br.close();
> 
> } catch (IOException e) {
>    e.printStackTrace();
> }
> 
>         }
> 
>     }
> 
> }
> 
> 
> 
> ======================
> Regards
> Somshekar C Kadam
> 9036660538
> 
> 
> On Tue, Aug 20, 2019 at 8:32 PM Somshekar C Kadam <somkadam76 at gmail.com>
> wrote:
> 
>> SOrry forgot to mention
>>
>> This is being tested on Armv7 board, we see the delay.
>> But when I run this in intel machine its just takes max 1 to 2 seconds
>> using sam java program.
>> So stuck on this.
>>
>> Regards
>> Somshekar C Kadam
>> 9036660538
>>
>>
>> On Tue, Aug 20, 2019 at 8:30 PM Somshekar C Kadam <somkadam76 at gmail.com>
>> wrote:
>>
>>> Hi Team,
>>>
>>> I am newbie to Java.
>>> we have on our environment
>>> Linux kernel 4.9, java 1.8 version using tls 1.2 default
>>>
>>>
>>>     1. using curl when we give any https link , it returns within 2
>>>     seconds
>>>     2. using java program using httpurlconnection class we get 10 seconds
>>>     or more delay.
>>>     3. Even removed some ciphers thought it may take sometime but that is
>>>     not the case.
>>>     4. Trying an alternative to httpurlconnection class apache
>>>     httpclient, having issues compiling and running it, any pointers will help.
>>>     5. Also any pointers or suggestion why we have 10 seconds delay on
>>>     https connection ?
>>>     6. I have tested using oracle java 8 also, same result, also tried
>>>     zulu11 version of java same delay.
>>>     7. Any suggestions would help here thanks in advance
>>>
>>> regards
>>> Somshekar
>>> Regards
>>> Somshekar C Kadam
>>> 9036660538
>>>
>>