There is a string formatting bug in the Portuguese translation for the installer title (installer_frame.title). This bug causes the version number to be combined with the product name without a space.

The current translation string is: 

installer_frame.title=Instalador do %sJBoss EAP 

When the version variable (%s) is passed (e.g., "8.1"), it produces an incorrect title: Instalador do 8.1JBoss EAP

To fix this, the version variable (%s) should be moved to the end of the string:

installer_frame.title=Instalador do JBoss EAP %s 

This will produce a correct output: Instalador do JBoss EAP 8.1