Field not used in 'toString()' method

Reports any fields that are not used in the toString() method of a class.

This inspection can help discover the fields that were added after the toString() method was created and for which the toString() method was not updated. The quick-fix regenerates the toString() method.

In the Generate | toString() dialog, it is possible to exclude fields from this check. This inspection will also check for problems with getter methods if the Enable getters in code generation option is enabled there.

Example:

public class Relevant {
  private String name; // not used in toString()
  private int index;
  private int length;

  @Override
  public String toString() {
      return "Relevant{" + "index=" + index +
        ", length=" + length + '}';
  }
}

After the quick-fix is applied:

public class Relevant {
  private String name;
  private int index;
  private int length;

  @Override
  public String toString() {
      return "Relevant{" + "name='" + name + '\'' +
        ", index=" + index + ", length=" + length + '}';
  }
}

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

Last modified: 13 July 2023