Subclass field hides superclass field

Reports fields in a derived class that are named identically a field of a superclass. Java fields cannot be overridden in derived classes, so the field in the derived class will hide the field from the superclass.

As a result of such naming, you may accidentally use the field of the derived class where the identically named field of a base class is intended.

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

Example:

class Parent {
  Parent parent;
}
class Child extends Parent {
  Child parent;
}

You can configure the following options for this inspection:

Ignore non-accessible fields - indicates whether this inspection should report all name clashes, or only clashes with fields which are visible from the subclass.
Ignore static fields hiding static fields - ignore static fields which hide static fields in base classes.

Inspection options

Option	Type	Default
Ignore non-accessible fields	Checkbox	true
Ignore static fields hiding static fields	Checkbox	true

Inspection Details
Available in:	IntelliJ IDEA 2023.3, Qodana for JVM 2023.3
Plugin:	Java, 233.SNAPSHOT

Last modified: 13 July 2023