CODEWITHSUNDEEP
javajspjstlends-with
LancerX
LancerX

Reputation: 1231

JSTL Bug in function endsWith?

<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>

<c:set var="some" value="abcdef"/>
${fn:endsWith(some, 'ef')}

returns true

<c:set var="some" value="abcdefef"/>
${fn:endsWith(some, 'ef')}

returns false

It looks like the function endsWith checks the string from its begining instead of from its end. If the string from second argument appers in the first argument not only at the its end, then the function returns false.

Upvotes: 4

Views: 2056

Answers (2)

Montri M
Montri M

Reputation: 1776

Try replacing the JSTL JAR files with the Apache version instead, http://tomcat.apache.org/taglibs/standard/. It fixes the same problem for me.

Upvotes: 0

Radha Mohan Maheshwari
Radha Mohan Maheshwari

Reputation: 768

yes, their is a bug in jstl 

public static boolean endsWith(String input, String substring)
    {
        if (input == null)
            input = "";
        if (substring == null)
            substring = "";
        int index = input.indexOf(substring);
        if (index == -1)
            return false;
        if (index == 0 && substring.length() == 0)
            return true;
        return (index == input.length() - substring.length());
}

it is using indexof instead of endsWith of String

Upvotes: 3

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