How to call variable parameter method in JSP EL?

Question

I have a bean with a method like below:

public String merge(Object... l) {
    return StringUtils.join(l);
}

now I want to call it in JSP EL like:

${bean.merge('1','2','3')}

but the page cause an IndexOutOfBoundsException.

Is it because JSP EL doesn't support variable-parameters feature, or just a bug in the JSP EL implementation in Apache Tomcat 7.0.19?

Answer 1

You need to create EL function though which you can pass parameter. Have a look EL tutorial and SO thread.