Redundant local variable

Reports unnecessary local variables that add nothing to the comprehensibility of a method, including:

Local variables that are immediately returned.
Local variables that are immediately assigned to another variable and then not used.
Local variables that always have the same value as another local variable or parameter.

Example:

boolean yes() {
  boolean b = true;
  return b;
}

After the quick-fix is applied:

boolean yes() {
  return true;
}

Configure the inspection:

Use the Ignore immediately returned or thrown variables option to ignore immediately returned or thrown variables. Some coding styles suggest using such variables for clarity and ease of debugging.
Use the Ignore variables which have an annotation option to ignore annotated variables.

Inspection options

Option	Type	Default
Ignore immediately returned or thrown variables	Checkbox	false
Ignore variables which have an annotation	Checkbox	true

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

Last modified: 13 July 2023