How to connect to JIRA with Java REST-API via a proxy-Server

[name lastname]

Hi, I have problem to connection to JIRA via Java REST-API, if there is a proxy in the way. I have tryed severel solutions but I allways get "connection timeout". I can establish a connection to my JIRA via normal Http-Request and using the proxy.

Here some code that dont work.

Solution 1 - Proxy Class

URL url = new URL("https://jira.example.com/jira/");
       
Proxy myProxy = null;
final ProxySettings proxySettings = new ProxySettings("proxy.example.com", 8080, "ProxyUsername", "ProxyPw");
if (proxySettings != null) {
    myProxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxySettings.getHost(), proxySettings.getPort()));
    if (proxySettings.getUser() != null) {
        Authenticator.setDefault(new Authenticator()
        {
            protected PasswordAuthentication getPasswordAuthentication()
            {
                return new PasswordAuthentication(proxySettings.getUser(), proxySettings.getPassword().toCharArray());
            }
        });
    }
}
URLConnection connection = null;
  
if (myProxy != null)
{
    connection = url.openConnection(myProxy);
    if (proxySettings != null && proxySettings.getUser() != null)
    {
        String proxyAuth = proxySettings.getUser() + ":" + proxySettings.getPassword();
        connection.setRequestProperty("Proxy-Authorization", "Basic " + Base64.encodeBase64String((proxyAuth).getBytes()));
    }
}
       
final JerseyJiraRestClientFactory factory = new JerseyJiraRestClientFactory();
final NullProgressMonitor pm = new NullProgressMonitor();
       
final URI jiraServerUri2 = connection.getURL().toURI();
       
final JiraRestClient restClient = factory.createWithBasicHttpAuthentication(jiraServerUri2, "jiraName", "JiraPW");
       
Issue issue = restClient.getIssueClient().getIssue("Test-4", pm); // here comes the timeout

Errormsg: "org.apache.commons.httpclient.HttpMethodDirector executeWithRetry
INFO: I/O exception (java.net.ConnectException) caught when processing request: Connection timed out: connect"

Solution 2 - System Properties

System.getProperties().put("https.proxyHost", "proxy.example.com");
System.getProperties().put("https.proxyPort", "8080");
System.getProperties().put("https.proxyUser", "ProxyUsername");
System.getProperties().put("https.proxyPassword", "ProxyPw");
System.getProperties().put("https.proxySet", "true");

final JerseyJiraRestClientFactory factory = new JerseyJiraRestClientFactory();
final NullProgressMonitor pm = new NullProgressMonitor();
       
final URI jiraServerUri2 = new URI("https://jira.example.com/jira/");
       
final JiraRestClient restClient = factory.createWithBasicHttpAuthentication(jiraServerUri2, "jiraName", "JiraPW");
       
Issue issue = restClient.getIssueClient().getIssue("Test-4", pm); // here comes the timeout

same Errormsg: "org.apache.commons.httpclient.HttpMethodDirector executeWithRetry
INFO: I/O exception (java.net.ConnectException) caught when processing request: Connection timed out: connect"

Solution 2 - VM Arguments

-Dhttps.proxyHost=proxy.example.com
-Dhttps.proxyPort=8080
-Dhttps.proxyUser=ProxyUsername
-Dhttps.proxyPassword=ProxyPw

rest ist the same like Solution 2



A helpful answer would be very nice. I'm working on this now for over a week and a bit more i'm goning crazy XD

Thanks a lot.

PS: Sorry for my bad english. If there any unterstanding problems, say it please.

[LucasA · Accepted solution]

Hello,

I believe your code is right (I can be wrong, though). However, this error is very clear:

org.apache.commons.httpclient.HttpMethodDirector executeWithRetry
INFO: I/O exception (java.net.ConnectException) caught when processing request: Connection timed out: connect

This is displayed by the local JVM, pointing that java couldn't reach the remote host. I believe the best approach would be checking the log files from your proxy server. It shall have the reason why this specific connection is being dropped.

Best regards,
Lucas Timm