LinkedHashSet.java

package java.util;
import org.checkerframework.checker.nullness.qual.Nullable;

// This class permits null elements
public class LinkedHashSet<E extends @Nullable Object> extends HashSet<E> implements Set<E>, Cloneable, java.io.Serializable {
  private static final long serialVersionUID = 0;
  public LinkedHashSet(int a1, float a2) { throw new RuntimeException("skeleton method"); }
  public LinkedHashSet(int a1) { throw new RuntimeException("skeleton method"); }
  public LinkedHashSet() { throw new RuntimeException("skeleton method"); }
  public LinkedHashSet(Collection<? extends E> a1) { throw new RuntimeException("skeleton method"); }
}