@@ -0,0 +1,715 @@
+package ui.twitter;%0A%0Aimport org.auraframework.system.Annotations.Controller;%0A%0Aimport java.sql.Connection;%0Aimport java.sql.DriverManager;%0A%0Aimport org.auraframework.system.Annotations.AuraEnabled;%0Aimport org.auraframework.system.Annotations.Key;%0A%0A@Controller%0Apublic class HomepageController %7B%0A%0A%09%0A    @AuraEnabled%0A    public static String getAppName(@Key(%22appKey%22) String importantInfo) %7B%0A    %09%0A    %09try %7B%0A%09%09%09Class.forName(%22org.h2.Driver%22);%0A%09%09%09Connection conn = DriverManager.getConnection(%22jdbc:h2:~/test%22);%0A%09%09%09System.out.println(conn.getSchema());%0A%09%09%09conn.close();%0A    %09%7D catch (Exception e) %7B%0A    %09%09%0A    %09%7D%0A    %09 throw new NullPointerException();%0A    %09%0A        // return %22A twitter clone %22 + importantInfo;%0A    %7D%0A%7D%0A

Add java controller