Details
Description
When portlet.xml has resource-bundle defined with a package containing an empty messages.properties file, it appears to use the portlet-info title and short-title from portlet.xml (tested with pluto 1.1.5 in uPortal 3.0.1).
While that doesn't seem that bad, if it is ignoring an empty messages.properties file or ignoring the resource-bundle altogether and this is not compliant with the standard, that might be bad.
Eric Dalquist of uPortal mentioned that this behavior, seemingly introduced somewhere between pluto 1.0.1-rc2 and pluto 1.1.5, could be a bug, since in earlier versions of pluto (tested with 1.0.1.-rc2 in uPortal 2.5.3.1 GA) it would fail to load if the the portlet's resource-bundle was defined with a package containing an empty messages.properties file, even if the title and short-title was defined in portlet-info.
Here is the example portlet.xml that works with pluto 1.1.5 (even though maybe it shouldn't?) but doesn't work with pluto 1.0.1-rc2:
(put an empty messages.properties file in the package that it defines as the resource-bundle, which in this example is jasig.portlet.helloworld.MyPortlet)
<?xml version='1.0' encoding='UTF-8' ?>
<portlet-app xmlns='http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd' version='1.0'>
<portlet>
<description>MyPortlet</description>
<portlet-name>MyPortlet</portlet-name>
<display-name>MyPortlet</display-name>
<portlet-class>jasig.portlet.helloworld.MyPortlet</portlet-class>
<expiration-cache>0</expiration-cache>
<supports>
<mime-type>text/html</mime-type>
<portlet-mode>VIEW</portlet-mode>
<portlet-mode>EDIT</portlet-mode>
<portlet-mode>HELP</portlet-mode>
</supports>
<resource-bundle>jasig.portlet.helloworld.messages</resource-bundle>
<portlet-info>
<title>MyPortlet</title>
<short-title>MyPortlet</short-title>
</portlet-info>
</portlet>
</portlet-app>