Inspectopedia
 
2024.3

Use of 'Properties' object as a 'Hashtable'

Warning
New
Last modified: 03 December 2024

Reports calls to the following methods on java.util.Properties objects:

  • put()

  • putIfAbsent()

  • putAll()

  • get()

For historical reasons, java.util.Properties inherits from java.util.Hashtable, but using these methods is discouraged to prevent pollution of properties with values of types other than String.

Calls to java.util.Properties.putAll() won't get reported when both the key and the value parameters in the map are of the String type. Such a call is safe and no better alternative exists.

Example:

After the quick-fix is applied: