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Interface method clashes with method in 'Object'

Reports interface methods that clash with the protected methods clone() and finalize() from the java.lang.Object class.

In an interface, it is possible to declare these methods with a return type that is incompatible with the java.lang.Object methods. A class that implements such an interface will not be compilable. When the interface is functional, it remains possible to create a lambda from it, but this is not recommended.


// Warning: this interface cannot be implemented // by any class, only by a lambda or method reference interface MyInterface { double clone(); }

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 | Abstraction issues


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