v0.2.55..v0.2.56 changeset HighwayClassifier.h

diff --git a/hoot-core/src/main/cpp/hoot/core/conflate/highway/HighwayClassifier.h b/hoot-core/src/main/cpp/hoot/core/conflate/highway/HighwayClassifier.h
index 4e5c1c3..2087d9f 100644
--- a/hoot-core/src/main/cpp/hoot/core/conflate/highway/HighwayClassifier.h
+++ b/hoot-core/src/main/cpp/hoot/core/conflate/highway/HighwayClassifier.h
@@ -22,7 +22,7 @@
  * This will properly maintain the copyright information. DigitalGlobe
  * copyrights will be updated automatically.
  *
- * @copyright Copyright (C) 2015, 2017, 2018 DigitalGlobe (http://www.digitalglobe.com/)
+ * @copyright Copyright (C) 2015, 2017, 2018, 2020 DigitalGlobe (http://www.digitalglobe.com/)
  */
 #ifndef HIGHWAYCLASSIFIER_H
 #define HIGHWAYCLASSIFIER_H
@@ -39,6 +39,9 @@ class HighwayClassifier
 {
 public:
 
+  HighwayClassifier() = default;
+  virtual ~HighwayClassifier() = default;
+
   static std::string className() { return "hoot::HighwayClassifier"; }
 
   /**