CT_CONSTRUCTOR_THROW: ignores empty final finalize() on base types

[big-andy-coates]

Issue #2642 confirmed that adding an empty final finailize() method mitigated any CT_CONSTRUCTOR_THROW issue.

  @Override
  @SuppressWarnings({ "deprecation", "Finalize" })
  protected final void finalize() {}

However, spotbugs does not detect the empty final finalize() if it is defined by a base type, e.g.

public class BaseType {
  @Override
  @SuppressWarnings({ "deprecation", "Finalize" })
  protected final void finalize() {}
}

public class SubType extends BaseType {
   public SubType(boolean fail) {
      if (fail) throw new RuntimeException();
   }
}