// Test case for issue #660: https://github.com/typetools/checker-framework/issues/660

import java.util.Set;
import java.util.TreeSet;
import org.checkerframework.checker.tainting.qual.Untainted;

public class TaintingDiamondInference {

  private @Untainted Set<@Untainted String> s;

  public TaintingDiamondInference() {
    // :: warning: (cast.unsafe.constructor.invocation)
    s = new @Untainted TreeSet<>();
    // :: warning: (cast.unsafe.constructor.invocation)
    s = new @Untainted TreeSet<@Untainted String>();
  }
}