openide/java/java-tests/testData/inspection/fieldCanBeLocal/LocalStateVar2InnerClass.java

import java.util.*;
class Outer {
  private Map<String, String> value = new HashMap<String, String>();

  public class Inner {

    public Inner(String s) {
      if (!value.containsKey(s)) value.put(s, "");
    }
  }
}