RTC 6.0: Connection timed out: connecting to RTC through Plain Java API

I have been trying to connect to RTC through Plain Java API but getting Connection timed out error. I suspect the issue due to proxy so i set the Proxy:
System.setProperty("https.proxyHost", "proxy");
System.setProperty("https.proxyPort", "80");

but still getting same error. If i run the code for local server on same network it is working fine. can any one suggest something to fix this issue? Thanks in advance.

public List<ProjectInformation> getProjectAreas()
    {
        List<ProjectInformation> projectList = new ArrayList<ProjectInformation>();
        RTCRepositoryInformation repoInformation =  new RTCRepositoryInformation();
        //ITeamRepository currentRepository = repoInformation.getCurrentRepository();
        ITeamRepository currentRepository = TeamPlatform.getTeamRepositoryService().getTeamRepository("https://Myserver.com/ccm");
       
        if(currentRepository != null) {
            // If having an ID for the user as string
            //IContributor user = teamRepository.contributorManager().fetchContributorByUserId(user)\
           
            if(!currentRepository.loggedIn() )
            {
                currentRepository.registerLoginHandler(new MyLoginhandler());
                try {
                    currentRepository.login(null);
                } catch (TeamRepositoryException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                System.out.println(" login "+ currentRepository.loggedIn());
            }

Here is the complete error on console:

java.net.ConnectException: Connection timed out: connect
    at sun.nio.ch.Net.connect(Native Method)
    at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:552)
    at com.ibm.team.repository.transport.client.InterruptableSocketFactory.doConnect(InterruptableSocketFactory.java:142)
    at com.ibm.team.repository.transport.client.InterruptableSocketFactory.createSocket(InterruptableSocketFactory.java:69)
    at com.ibm.team.repository.transport.client.SecureInterruptableSocketFactory.createSocket(SecureInterruptableSocketFactory.java:300)
    at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)
    at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1361)
    at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
    at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
    at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
    at com.ibm.team.repository.transport.client.ClientHttpUtil.executePrimitiveRequest(ClientHttpUtil.java:1293)
    at com.ibm.team.repository.transport.client.ClientHttpUtil.executeHttpMethod(ClientHttpUtil.java:372)
    at com.ibm.team.repository.transport.client.ClientHttpUtil.executeHttpMethod(ClientHttpUtil.java:322)
    at com.ibm.team.repository.transport.client.ClientHttpUtil.executeHttpMethod(ClientHttpUtil.java:220)
    at com.ibm.team.repository.transport.client.ClientHttpUtil.executeHttpMethod(ClientHttpUtil.java:229)
    at com.ibm.team.repository.transport.client.RestClientConnectionBase.executeMethod(RestClientConnectionBase.java:324)
    at com.ibm.team.repository.transport.client.RestClientConnectionBase.doMethod(RestClientConnectionBase.java:187)
    at com.ibm.team.repository.transport.client.RestClientConnectionBase.doGet(RestClientConnectionBase.java:122)
    at com.ibm.team.repository.transport.client.TeamRawRestServiceClient$RawRestClientConnection.doGet(TeamRawRestServiceClient.java:96)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:611)
    at com.ibm.team.repository.client.internal.ServiceInterfaceProxy.invokeServiceCall(ServiceInterfaceProxy.java:254)
    at com.ibm.team.repository.client.internal.ServiceInterfaceProxy.invoke(ServiceInterfaceProxy.java:110)
    at com.ibm.team.repository.client.internal.RawRestServiceClientProxy$RestClientConnectionProxy.invoke(RawRestServiceClientProxy.java:121)
    at com.sun.proxy.$Proxy9.doGet(Unknown Source)
    at com.ibm.team.repository.client.internal.TeamRepository.fetchClientVersionJSONObject(TeamRepository.java:1666)
    at com.ibm.team.repository.client.internal.TeamRepository.access$0(TeamRepository.java:1663)
    at com.ibm.team.repository.client.internal.TeamRepository$5.run(TeamRepository.java:1734)
    at com.ibm.team.repository.client.internal.TeamRepository$5.run(TeamRepository.java:1)
    at com.ibm.team.repository.client.internal.TeamRepository$3.run(TeamRepository.java:1325)
    at com.ibm.team.repository.common.transport.CancelableCaller.call(CancelableCaller.java:79)
    at com.ibm.team.repository.client.internal.TeamRepository.callCancelableService(TeamRepository.java:1320)
    at com.ibm.team.repository.client.internal.TeamRepository.checkServerVersionMatches(TeamRepository.java:1737)
    at com.ibm.team.repository.client.internal.TeamRepository.internalLogin(TeamRepository.java:1513)
    at com.ibm.team.repository.client.internal.TeamRepository.login(TeamRepository.java:654)
    at com.ibm.team.repository.client.internal.TeamRepository.login(TeamRepository.java:628)
    at com.fca.systemdesk.plugin.internal.rtc.RTCSourceControlHandler.getProjectAreas(RTCSourceControlHandler.java:66)
    at com.fca.systemdesk.plugin.internal.rtc.RTCSourceControlHandler.main(RTCSourceControlHandler.java:108)