This is a built-in template used for filling the body of a catch block when it is generated, e.g. when using the Code | Surround with... function. The template is editable. Along with Java expressions and comments, you can also use predefined variables that will be then expanded into the corresponding values.

Predefined variables will take the following values:
${EXCEPTION} |  | name of the Exception variable specified as a catch parameter
${EXCEPTION_TYPE} |  | type of the catch parameter