try {     String response = null ;     URL url = new URL( url );     HttpURLConnection connection = (HttpURLConnection) url.openConnection();     String payload = "{ \" pageSize \" :30, \" pageNumber \" :1, \" currentPriceRanges \" :[], \" filters \" :{ \" newArrivals \" :false, \" onSale \" :false, \" articleType \" :[], \" filterBy \" :{ \" Brand \" :[]}}, \" isFiltersRequired \" :true, \" source \" : \" listing \" , \" collections \" :[ \" FL-Top Nav-ALL-Mens Shirts \" ]}" ;      connection.setDoInput( true );     connection.setDoOutput( true );     connection.setRequestMethod( "POST" );     connection.setRequestProperty( "Accept" , "application/json" );     connection.setRequestProperty( "Content-Type" , "application/json; charset=UTF-8" );     OutputStreamWriter writer = new OutputSt...