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Class may extend a commonly used base class

Reports classes or interfaces that can be replaced with an implementation or extension of a more specific commonly used class or interface.

For this inspection to work, a superclass needs to be in project source files and the project needs to use the IntelliJ IDEA build system.


class MyInheritor implements A {} // B suggested on the A reference interface A {} abstract class B implements A {} abstract class C1 extends B {} abstract class C2 extends B {} abstract class C3 extends B {} abstract class C4 extends B {} abstract class C5 extends B {}

By default, this inspection doesn't highlight issues in the editor but only provides a quick-fix.

New in 2017.2

Inspection Details

Available in:

IntelliJ IDEA 2023.3, Qodana for JVM 2023.3


Java, 233.SNAPSHOT

Last modified: 13 July 2023