Portal 10.3 - fmt taglib cache

Hi,

I have a site done with WLG Portal 10.3. For the internalization I'm using JSTL 1.1.

For show the pages in different languages I'm using the fmt taglib and the tags bundle and message. For example:

<fmt:bundle basename="labels">
<p><fmt:message key="label1"/></p>
<p><fmt:message key="label2"/></p>
</fmt:bundle>

The texts are in a file.properties and this is working well. But when I do changes in the texts file, the texts in pages doesn't updated.

I suposed the text are saved in a cache, but I have not found it.

Anyone could tell me where are saved the text of fmt?