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:
Object f(Properties props) {
props.put("hello", "world");
props.putIfAbsent("hello", "world");
props.putAll(new HashMap<>());
return props.get("Hello");
}
After the quick-fix is applied:
Object f(Properties props) {
props.setProperty("hello", "world");
props.putIfAbsent("hello", "world");
props.putAll(new HashMap<>());
return props.getProperty("hello");
}