Small error in sharing post and also error in emoji post

Hi Please read the details properly. I am not asking for creating iPhone. You DO NOT have to make iPhone apps. So, don't bid if you are not able to do this work. Java applications are deployed on Openshift using Tomcat 7 (JBOSSEWS-2.0) Server. I am using Java application as my backend for my iphone apps. When user share post by using "@" , means when user mention some other username with "@" then its just keep on loading. For example: Suppose I am a user and I wanted to share: "Test @username" and when I click Post then its keep on loading. When I cancel the post sharing, then its going to database and also displaying on my profile. I am just wondering why its not simply posting like other post. Why its keep on loading. Secondly, when I share post with any emoji, then its saying - Sorry Try Again. And its neither inserting to database nor displaying to my profile. See attached file. I need someone who can fix this issues. I guess this is backend side issue which is based on Java. NOTE: When you modify, or create a new line or anything you change in my code please comment the code by your name and also write down in a doc file file that which file you created or modified. Please please please ask any questions if you have any doubt. Milestones will be created but it will be released only after the finishing of my work. No payment before work or without work.