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Reports expressions that are affected by autoboxing conversion (automatic wrapping of primitive values as objects). Try not to use objects instead of primitives. It might significantly affect performance.


Integer x = 42;

The quick-fix makes the conversion explicit:

Integer x = Integer.valueOf(42);

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 | Performance

AutoBoxing appeared in Java 5. This inspection can help to downgrade for backward compatibility with earlier Java versions.

Inspection options

Here you can find the description of settings available for the Auto-boxing inspection, and the reference of their default values.

Ignore expressions added to a collection

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