logger changed to transient property

model/src/main/java/lcsb/mapviewer/model/map/species/Gene.java

@@ -30,7 +30,8 @@ import lcsb.mapviewer.model.map.species.field.TranscriptionSite;
 @DiscriminatorValue("GENE")
 public class Gene extends Species {
   
-  Logger logger = Logger.getLogger(Gene.class);
+  @SuppressWarnings("unused")
+  private static Logger logger = Logger.getLogger(Gene.class);
 
   /**
    *