Maximum 'switch' branches

Last modified: 03 December 2024

Reports switch statements or expressions with too many case labels.

Such a long switch statement may be confusing and should probably be refactored. Sometimes, it is not a problem (for example, a domain is very complicated and has enums with a lot of constants).

Example:

switch (x) {
    case 1 -> {}
    case 2 -> {}
    case 3 -> {}
    case 4 -> {}
    case 5 -> {}
    case 6 -> {}
    case 7 -> {}
    case 8 -> {}
    case 9 -> {}
    case 10 -> {}
    case 11,12,13 -> {}
    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.

SwitchStatementWithTooManyBranches
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

Use the Maximum number of branches field to specify the maximum number of case labels expected.

Inspection options

Here you can find the description of settings available for the Maximum 'switch' branches inspection, and the reference of their default values.

Maximum number of branches

10

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Java, 243.23126