'Map' can be replaced with 'EnumMap'
Reports instantiations of java.util.Map objects whose key types are enumerated classes. Such java.util.Map objects can be replaced with java.util.EnumMap objects.
java.util.EnumMap implementations can be much more efficient because the underlying data structure is a simple array.
Example:
Map<MyEnum, String> myEnums = new HashMap<>();
After the quick-fix is applied:
Map<MyEnum, String> myEnums = new EnumMap<>(MyEnum.class);
Locating this inspection
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
MapReplaceableByEnumMap- Via Settings dialog
Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.
Availability
- By default bundled with
- Can be installed with plugin
Java, 241.18072
Last modified: 18 June 2024