This is a built-in template used for replace text in JSP, e.g.
     <html> <body> Hello! </body> </html>
with internationalized JSP custom tag usage, e.g.
     <html> <body> <bean:message key="HelloKey"/> </body> </html> .

The template is editable. Along with expressions allowed in JSP context, you can also use the predefined variables that will be then expanded into the corresponding values.

Predefined variables will take the following values:
${PROPERTY_KEY}   Property key name which is specified in the corresponding properties file.
${PROPERTY_VALUE}   Property value which is specified in the corresponding properties file. This is an original JSP text selection value.