Keep a cost of -1 for nogos which should never been entered to prevent them from being fed in the priority queue

brouter-core/src/main/java/btools/router/OsmNodeNamed.java

@@ -17,7 +17,11 @@ public class OsmNodeNamed extends OsmNode
   @Override
   public String toString()
   {
-    return ilon + "," + ilat + "," + name + "," + nogoWeight;
+    if ( Double.isNaN(nogoWeight ) ) {
+      return ilon + "," + ilat + "," + name;
+    } else {
+      return ilon + "," + ilat + "," + name + "," + nogoWeight;
+    }
   }
 
   public static OsmNodeNamed decodeNogo( String s )
@@ -30,7 +34,7 @@ public class OsmNodeNamed extends OsmNode
     int idx3 = s.indexOf( ',', idx2+1 );
     if ( idx3 == -1) {
         n.name = s.substring( idx2 + 1 );
-        n.nogoWeight = 100000;
+        n.nogoWeight = Double.NaN;
     } else {
         n.name = s.substring( idx2+1, idx3 );
         n.nogoWeight = Double.parseDouble( s.substring( idx3 + 1 ) );

brouter-core/src/main/java/btools/router/OsmPath.java

@@ -427,7 +427,11 @@ abstract class OsmPath implements OsmLinkHolder
         }
         if ( rc.nogomatch != null )
         {
-          cost += rc.nogomatch.nogoWeight;
+          if ( Double.isNaN(rc.nogomatch.nogoWeight) ) {
+            cost = -1;
+          } else {
+            cost += rc.nogomatch.nogoWeight;
+          }
         }
         return;
       }
@@ -462,7 +466,12 @@ abstract class OsmPath implements OsmLinkHolder
     // check for nogo-matches (after the *actual* start of segment)
     if ( rc.nogomatch != null )
     {
-      cost += rc.nogomatch.nogoWeight;
+      if ( Double.isNaN(rc.nogomatch.nogoWeight) ) {
+        cost = -1;
+        return;
+      } else {
+        cost += rc.nogomatch.nogoWeight;
+      }
     }
 
     // add target-node costs

brouter-core/src/main/java/btools/router/StdPath.java

@@ -180,7 +180,6 @@ final class StdPath extends OsmPath
     return 0.;
   }
 
-
   @Override
   public int elevationCorrection( RoutingContext rc )
   {