Unnecessary 'final' on local variable or parameter

Reports local variables or parameters unnecessarily declared final.

Some coding standards frown upon variables declared final for reasons of terseness.

Example:

class Foo {
  Foo(Object o) {}

  void bar(final Object o) {
    new Foo(o);
  }
}

After the quick-fix is applied:

class Foo {
  Foo(Object o) {}

  void bar(Object o) {
    new Foo(o);
  }
}

Use the inspection options to toggle the reporting for:

local variables
parameters (including parameters of catch blocks and enhanced for statements)

Also, you can configure the inspection to only report final parameters of abstract or interface methods, which may be considered extra unnecessary as such markings don't affect the implementation of these methods.

Inspection options

Option	Type	Default
Report local variables	Checkbox	true
Report pattern variables	Checkbox	true
Report parameters	Checkbox	true
Only warn on abstract or interface methods	Checkbox	false

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

Last modified: 13 July 2023