Connecting inside container at docker environment using JSCH -

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i developing java application connect (using ssh) linux machine attach docker container , send commands on that.

now, able connect linux machine, send commands , read responses, when try attach container , send commands inside it, nothing received , not able send commands.

i usinf code below. please me issue?

try{   jsch jsch=new jsch();      string host=null;   if(arg.length>0){     host=arg[0];   }   else{     host=joptionpane.showinputdialog("enter username@hostname",                                      "root@10.46.68.147");    }   string user=host.substring(0, host.indexof('@'));   host=host.substring(host.indexof('@')+1);    session session=jsch.getsession(user, host, 22);   //session session=jsch.getsession("root", "10.46.68.147", 4184);    // username , password given via userinfo interface.   userinfo ui=new myuserinfo();   session.setuserinfo(ui);   session.connect();   string temp = "";  string all_content = "docker ps -a;docker attach 9071d6cda4d8;client"     //open session , send commands   channel channel=session.openchannel("exec");   ((channelexec) channel).setpty(true); //command running groove containers   channel.setxforwarding(true);   ((channelexec)channel).setcommand(all_content);      channel.setinputstream(null);    ((channelexec)channel).seterrstream(system.err);    inputstream in=channel.getinputstream();    channel.connect();


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