Labeled switch rule has redundant code block

Reports labeled rules of switch statements or switch expressions that have a redundant code block.

Example:

  String s = switch (n) {
    case 1 -> { yield Integer.toString(n); }
    default -> "default";
  };

After the quick-fix is applied:

  String s = switch (n) {
    case 1 -> Integer.toString(n);
    default -> "default";
  };

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.

RedundantLabeledSwitchRuleCodeBlock

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.

Settings or Preferences | Editor | Inspections | Java | Code style issues

This inspection depends on the Java feature 'Enhanced 'switch' blocks', which is available since Java 14.

New in 2019.1

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.2, Qodana for JVM 2024.2,
Can be installed with plugin:	Java, 242.22892

Last modified: 11 September 2024