diff --git a/brouter-core/src/main/java/btools/router/RoutingEngine.java b/brouter-core/src/main/java/btools/router/RoutingEngine.java
index ad276bc..36fd442 100644
--- a/brouter-core/src/main/java/btools/router/RoutingEngine.java
+++ b/brouter-core/src/main/java/btools/router/RoutingEngine.java
@@ -166,6 +166,11 @@ public class RoutingEngine extends Thread
       long endTime = System.currentTimeMillis();
       logInfo( "execution time = " + (endTime-startTime)/1000. + " seconds" );
     }
+    catch( IllegalArgumentException e)
+    {
+      errorMessage = e.getMessage();
+      logInfo( "Exception (linksProcessed=" + linksProcessed + ": " + errorMessage );
+    }
     catch( Exception e)
     {
       errorMessage = e instanceof IllegalArgumentException ? e.getMessage() : e.toString();
diff --git a/brouter-mapaccess/src/main/java/btools/mapaccess/OsmFile.java b/brouter-mapaccess/src/main/java/btools/mapaccess/OsmFile.java
index 0df7ece..9868119 100644
--- a/brouter-mapaccess/src/main/java/btools/mapaccess/OsmFile.java
+++ b/brouter-mapaccess/src/main/java/btools/mapaccess/OsmFile.java
@@ -83,7 +83,8 @@ final class OsmFile
   {
     long sum = 0;
     ghost = true;
-    for( int i=0; i< microCaches.length; i++ )
+    int nc = microCaches == null ? 0 : microCaches.length;
+    for( int i=0; i< nc; i++ )
     {
       MicroCache mc = microCaches[i];
       if ( mc == null ) continue;
@@ -102,7 +103,8 @@ final class OsmFile
 
   void cleanAll()
   {
-    for( int i=0; i< microCaches.length; i++ )
+    int nc = microCaches == null ? 0 : microCaches.length;
+    for( int i=0; i< nc; i++ )
     {
       MicroCache mc = microCaches[i];
       if ( mc == null ) continue;
diff --git a/brouter-server/src/test/java/btools/server/RouterTest.java b/brouter-server/src/test/java/btools/server/RouterTest.java
index 12f4ad9..6933536 100644
--- a/brouter-server/src/test/java/btools/server/RouterTest.java
+++ b/brouter-server/src/test/java/btools/server/RouterTest.java
@@ -12,28 +12,52 @@ import btools.mapaccess.*;
 
 public class RouterTest
 {
+  private File workingDir;
+
   @Test
   public void routerTest() throws Exception
   {
     URL resulturl = this.getClass().getResource( "/testtrack0.gpx" );
     Assert.assertTrue( "reference result not found: ", resulturl != null );
     File resultfile = new File(resulturl.getFile());
-    File workingDir = resultfile.getParentFile();
+    workingDir = resultfile.getParentFile();
 
+    String msg;
+
+    // first test: route within dreiech test-map crossing tile border
+    
+    msg = calcRoute( 8.720897, 50.002515, 8.723658, 49.997510, "testtrack" );
+
+    // error message from router?
+    Assert.assertTrue( "routing failed: " + msg, msg == null  );
+
+    // if the track didn't change, we expect the first alternative also
+    File a1 = new File( workingDir, "testtrack1.gpx" );
+    Assert.assertTrue( "result content missmatch", a1.exists() );
+
+    // second test: to-point far off
+
+    msg = calcRoute( 8.720897, 50.002515, 16.723658, 49.997510, "notrack" );
+
+    Assert.assertTrue( msg, msg != null && msg.indexOf( "not mapped" ) >= 0 );
+  }
+
+  private String calcRoute( double flon, double flat, double tlon, double tlat, String trackname ) throws Exception
+  {
     String wd = workingDir.getAbsolutePath();
 
     List<OsmNodeNamed> wplist = new ArrayList<OsmNodeNamed>();
     OsmNodeNamed n;
     n = new OsmNodeNamed();
     n.name = "from";
-    n.ilon = 180000000 +  8720897;
-    n.ilat =  90000000 + 50002515;
+    n.ilon = 180000000 +  (int)(flon*1000000 + 0.5);
+    n.ilat =  90000000 + (int)(flat*1000000 + 0.5);
     wplist.add( n );
 
     n = new OsmNodeNamed();
     n.name = "to";
-    n.ilon = 180000000 +  8723658;
-    n.ilat =  90000000 + 49997510;
+    n.ilon = 180000000 +  (int)(tlon*1000000 + 0.5);
+    n.ilat =  90000000 + (int)(tlat*1000000 + 0.5);
     wplist.add( n );
 
     RoutingContext rctx = new RoutingContext();
@@ -41,16 +65,12 @@ public class RouterTest
     //   c.setAlternativeIdx( 1 );
 
     RoutingEngine re = new RoutingEngine(
-        wd + "/testtrack",
-        wd + "/testlog",
+        wd + "/" + trackname,
+        wd + "/" + trackname,
         wd + "/../../../brouter-map-creator/target/test-classes/tmp/segments", wplist, rctx );
     re.doRun( 0 );
-
-    // error message from router?
-    Assert.assertTrue( "routing failed: " + re.getErrorMessage(), re.getErrorMessage() == null  );
-
-    // if the track didn't change, we expect the first alternative also
-    File a1 = new File( workingDir, "testtrack1.gpx" );
-    Assert.assertTrue( "result content missmatch", a1.exists() );
+    
+    return re.getErrorMessage();
   }
+
 }