'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:
After the quick-fix is applied:
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.
Suppressing Inspection
You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:
More detailed instructions as well as other ways and options that you have can be found in the product documentation:
Inspection Details | |
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By default bundled with: |