gets around a possible npe

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@194473 13f79535-47bb-0310-9956-ffa450edef68

src/org/apache/fop/fo/FONode.java

@@ -234,11 +234,14 @@ abstract public class FONode {
 
     public void addMarker(Marker marker) throws FOPException {
         String mcname = marker.getMarkerClassName();
-        if (!markers.containsKey(mcname) && children.isEmpty())
+        if (!markers.containsKey(mcname) && children.isEmpty()) {
             markers.put(mcname, marker);
-        else
+        } else {
+            log.error("fo:marker must be an initial child,"
+                                   + "and 'marker-class-name' must be unique for same parent");
             throw new FOPException("fo:marker must be an initial child,"
                                    + "and 'marker-class-name' must be unique for same parent");
+        }
     }
 
     public boolean hasMarkers() {

src/org/apache/fop/fo/flow/Marker.java

@@ -45,8 +45,9 @@ public class Marker extends FObjMixed {
         try {
             parent.addMarker(this);
         } catch (FOPException fopex) {
-            log.error("marker cannot be added to '" + parent
-                                 + "'");
+            // log is null in constructor
+            //log.error("marker cannot be added to '" + parent
+            //                     + "'");
         }
     }