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Return of instance of anonymous, local or inner class

Reports return statements that return an instance of an anonymous, local, or inner class. Such instances keep an implicit reference to the outer instance, which can prevent the outer instance from being garbage-collected. Any caller of a method returning such an instance might cause a memory leak by holding on to the instance returned.

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.

ReturnOfInnerClass
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 | Memory

Configure the inspection:

  • Use the Ignore returns from non-public methods option to ignore returns from protected or package-private methods. Returns from private methods are always ignored.

Inspection options

Here you can find the description of settings available for the Return of instance of anonymous, local or inner class inspection, and the reference of their default values.

Ignore returns from non-public methods

Not 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