This is a built-in template used for replacing 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 a JSP context, you can also use 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.