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Class extends utility class

Reports classes that extend a utility class.

A utility class is a non-empty class in which all fields and methods are static. Extending a utility class also allows for inadvertent object instantiation of the utility class, because the constructor cannot be made private in order to allow extension.

Locating this inspection


Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

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 | Inheritance issues

Configure the inspection:

  • Use the Ignore if overriding class is a utility class option to ignore any classes that override a utility class but are also utility classes themselves.

Inspection options

Here you can find the description of settings available for the Class extends utility class inspection, and the reference of their default values.

Ignore if overriding class is a utility class

Not selected


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