Local variable used and declared in different 'switch' branches

Reports local variables declared in one branch of a switch statement and used in another branch. Such declarations can be extremely confusing.

Example:

    switch(i) {
      case 2:
          int x = 0;
          break;
      case 3:
          x = 3;
          System.out.println(x);
          break;
    }

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.

SwitchStatementWithConfusingDeclaration

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 | Control flow issues

Availability

By default bundled with: IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,
Can be installed with plugin: Java, 241.18072

Last modified: 18 June 2024