Inner class field hides outer class field

Reports inner class fields named identically to a field of a surrounding class. As a result of such naming, you may accidentally use the field from the inner class when using the identically named field of a surrounding class is intended.

A quick-fix is suggested to rename the inner class field.

Example:

  class Outer {
    private String name;

    class Inner {
      private String name;
    }
  }

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.

InnerClassVariableHidesOuterClassVariable

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 | Visibility

Use the option to choose whether this inspection should report all name clashes, or only clashes with fields that are visible from the inner class.

Inspection options

Here you can find the description of settings available for the Inner class field hides outer class field inspection, and the reference of their default values.

Ignore outer fields not visible from inner class: Default: Selected

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