Shared coding conventions allow teams to collaborate effectively. This rule checks that all file names match a provided regular expression.

As Java properties files are used in a large variety of ways and by many frameworks, it might sometimes be tricky to enforce a strict file naming convention. However, the default regular expression has been designed to match as closely as possible the following guidelines:

• Suffix files with .properties
• Only use letters, digits, '_' and '-' characters
• Refrain from using '_' and '-' characters. Only use them when mandatory such as in i18n Java resource bundles.
• Extensively use Camel Case. For example, prefer:

  myProperties.properties
  

  to

  myproperties.properties
  my_properties.properties