In a JSF Page you might want to display all entries of a collection as a comma-separated list (or of course another separator). To do that you can use the JSF <ui:repeat></ui:repeat> Tag.
If you want to insert a character like & e.g. within a JSF (Java Server Faces) component’s value attribute, you might get an error. To avoid this you must insert a HTML-Entity for the character. Here is a short list Continue reading How to insert special characters like &, < and > into a JSF component