Java
Reference to empty collection field can be replaced with method call
Warning
New
Last modified: 03 December 2024 Reports usages of java.util.Collections
fields: EMPTY_LIST
, EMPTY_MAP
or EMPTY_SET
. These field usages may be replaced with the following method calls: emptyList()
, emptyMap()
, or emptySet()
. Such method calls prevent unchecked warnings by the compiler because the type parameters can be inferred.
Example:
List<Integer> emptyList = Collections.EMPTY_LIST;
After the quick-fix is applied:
List<Integer> emptyList = Collections.emptyList();
- 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.
CollectionsFieldAccessReplaceableByMethodCall
This inspection only reports if the language level of the project or module is 5 or higher.
Inspection Details | |
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By default bundled with: | |
Can be installed with plugin: | Java, 243.23126 |
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