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Editorial Team
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Asked: 2026-06-05T23:55:26+00:00

I have an f:loadBundle that loads a properties file from my classpath. <f:loadBundle basename=com.xxx.ui.messages

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I have an f:loadBundle that loads a properties file from my classpath.

<f:loadBundle basename="com.xxx.ui.messages" var="msg" />

Later on, I’m attempting to use a message from the resource bundle with the following syntax:

<h:outputText value="test message: #{msg.does_not_exist} --"/>

It used to be that JSF would print out a “NOT FOUND” message, but now it’s throwing an exception. Did the specification change or is this the correct behavior?

I’m using Mojarra 2.1.9 with JUEL 2.2.4 as a EL resolver. Here’s the stack trace:

javax.el.PropertyNotFoundException: /WEB-INF/xxx.xhtml @10,70 value="test message: #{msg.does_not_exist} --": Property 'does_not_exist' not found on type java.util.PropertyResourceBundle
    at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:111)
    at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
    at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
    at javax.faces.component.UIOutput.getValue(UIOutput.java:169)
    at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:205)
    at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:355)
    at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:164)

EDIT:
The correct behavior can be verified here: http://javaserverfaces.java.net/nonav/docs/2.0/vdldocs/facelets/f/loadBundle.html

(Which says the literal string ???KEY??? is returned from the Map, where KEY is the key being looked up in the Map, instead of a MissingResourceException being thrown)

EDIT: Same problem even after removing JUEL

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1 Answer

  1. Editorial Team

    So the answer is actually staring you in the face… props to @millimoose for getting me started down the right path.

    Notice the specification says this:

    the literal string ???KEY??? is returned from the Map, where KEY is
    the key being looked up in the Map, instead of a
    MissingResourceException being thrown.

    But my stack trace says this:

    javax.el.PropertyNotFoundException: /WEB-INF/xxx.xhtml @10,70
    value=”test message: #{msg.does_not_exist} –“: Property
    ‘does_not_exist’ not found on type java.util.PropertyResourceBundle

    Ahah, a possible bug!

    Knowing that this class would be pulled from tomcat/lib, I browsed out to their source and javadoc here. Notice the throws declaration on “getValue()”?

    That’s in pretty stark contrast to the specification here.

    So I removed el-api from tomcat/lib and replaced it with the spec jar (here) and problem solved!

    Why Tomcat is so different from the specification is beyond me… those crazy Apache guys.

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