JSF

From Foochal

ERROR [org.apache.myfaces.util.LocaleUtils] - Locale name null or empty, ignoring

Add the following to your faces-config.xml

<faces-config>
  <application>
    <locale-config>
      <default-locale>en_US</default-locale>
    </locale-config>

Multiple faces-config files

Edit your web.xml as follows to include more than one faces-config files

<context-param>
    <param-name>javax.faces.CONFIG_FILES</param-name>
    <param-value>/WEB-INF/my-faces-config.xml, /WEB-INF/your-faces-config.xml</param-value>
</context-param>