0005590: JSTL bug: empty values handled incorrectly in fmt:formatNumber tag

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Category

Severity

Reproducibility

Date Submitted

Last Update

0005590

[Resin]

major

always

11-19-13 03:46

02-13-14 18:54

Reporter

VladV

View Status

public

Assigned To

alex

Priority

normal

Resolution

fixed

Status

closed

Product Version

4.0.37

Summary

0005590: JSTL bug: empty values handled incorrectly in fmt:formatNumber tag

Description

Empty (null) values passed to fmt:formatNumber as "value" attribute are handled incorrectly: instead of being displayed as empty values, they are displayed as values from previously evaluated fmt:formatNumber tags. Please see the example below.

If the value is passed as the tag content, not as an attribute, everything works as expected.

Additional Information

Code to reproduce the bug:
<%@ page pageEncoding="utf-8" trimDirectiveWhitespaces="true" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" [^] %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" [^] %>
<html>
<head>
<title>JSP Test Page</title>
</head>
<body>
<c:set var="x" value="12.345" />
<c:set var="y" value="${null}" />

[<fmt:formatNumber maxFractionDigits="2" value="&0000036;{x}"/>]
[<fmt:formatNumber maxFractionDigits="2" value="&0000036;{y}"/>]
[<fmt:formatNumber maxFractionDigits="2">&0000036;{x}</fmt:formatNumber>]
[<fmt:formatNumber maxFractionDigits="2">&0000036;{y}</fmt:formatNumber>]

</body>
</html>

Output:
[12.34]
[12.34] <-- this should be empty
[12.34]
[]

Attached Files

Relationships

Notes
(0006397) alex 02-13-14 18:51	jsp/1dbd

(0006398) alex 02-13-14 18:53	fixed in 4.0.39

(0006399) alex 02-13-14 18:54	jsp/1dbd

Issue History
Date Modified	Username	Field	Change
11-19-13 03:46	VladV	New Issue
11-19-13 03:47	VladV	Issue Monitored: VladV
02-06-14 11:50	alex	Additional Information Updated
02-06-14 11:51	alex	Additional Information Updated
02-13-14 18:40	alex	Status	new => assigned
02-13-14 18:40	alex	Assigned To	=> alex
02-13-14 18:51	alex	Status	assigned => closed
02-13-14 18:51	alex	Note Added: 0006397
02-13-14 18:51	alex	Resolution	open => fixed
02-13-14 18:51	alex	Fixed in Version	=> 3.1.14
02-13-14 18:53	alex	Status	closed => feedback
02-13-14 18:53	alex	Resolution	fixed => reopened
02-13-14 18:53	alex	Note Added: 0006398
02-13-14 18:54	alex	Status	feedback => closed
02-13-14 18:54	alex	Note Added: 0006399
02-13-14 18:54	alex	Resolution	reopened => fixed
02-13-14 18:54	alex	Fixed in Version	3.1.14 => 4.0.39

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