Unnecessary code block

Reports code blocks that are redundant to the semantics of the program and can be replaced with their contents.

The code blocks that are the bodies of if, do, while, or for statements will not be reported by this inspection.

Example:

  void foo() {
    { // unnecessary
      int result = call();
      analyze(result);
    } // unnecessary
  }

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.

UnnecessaryCodeBlock

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

Configure the inspection:

Use the Ignore branches of 'switch' statements option to ignore the code blocks that are used as branches of switch statements.

Inspection options

Here you can find the description of settings available for the Unnecessary code block inspection, and the reference of their default values.

Ignore branches of 'switch' statements: Default value:
Not selected

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:

//noinspection UnnecessaryCodeBlock

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

IntelliJ IDEA 2025.2

Inspection Details
By default bundled with:	IntelliJ IDEA 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025