Lambda parameter hides field

Reports lambda parameters named identically to a field of a surrounding class. As a result of such naming, you may accidentally use the lambda parameter when using the identically named field is intended.

A quick-fix is suggested to rename the lambda parameter.

Example:

public class MyClass {
  public Object foo;

  void sort(List<Integer> list) {
    list.sort((foo, bar) -> foo - bar);
  }
}

Use the option to choose whether to ignore fields that are not visible from the lambda expression. For example, private fields of a superclass.

Inspection options

Option	Type	Default
Ignore fields not actually visible from the lambda	Checkbox	true

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

Last modified: 13 July 2023