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Editorial Team
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Asked: 2026-05-24T04:14:58+00:00

I am trying a simple validation program with JSP and EL (not that I

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I am trying a simple validation program with JSP and EL (not that I need the functionality itself, but just to learn the ropes of JSP). I set the prefix as “mine” and validate is a function which checks if the two String inputs are equal to "admin" and "password" using the String.equals method. However, I get "false" (unexpected) from the first code block and "true" (as expected) from the second.

What’s going on?

The following code is in my jsp file.

<c:set var="a" value="admin"/>
<c:set var="b" value="password"/>
${mine:validate(a, b)}

OR

${mine:validate("admin", "password")}

Here is the full code:

<%@ taglib prefix="mine" uri="Functions"%>
<html>
<body>
<c:set var="a" value="admin"/>
<c:set var="b" value="password"/>
${mine:validate(a, b)}
</body>
</html>
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1 Answer

  1. Editorial Team

    I cannot select a best answer so I will have to quote the comment left by Affe:

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