Index: trunk/src/org/openstreetmap/josm/data/osm/OsmPrimitive.java
===================================================================
--- trunk/src/org/openstreetmap/josm/data/osm/OsmPrimitive.java	(revision 7083)
+++ trunk/src/org/openstreetmap/josm/data/osm/OsmPrimitive.java	(revision 7084)
@@ -767,5 +767,5 @@
                 reversedDirectionKeys = SearchCompiler.compile(reversedDirectionDefault, false, false);
             } catch (ParseError e2) {
-                throw new AssertionError("Unable to compile default pattern for direction keys: " + e2.getMessage());
+                throw new AssertionError("Unable to compile default pattern for direction keys: " + e2.getMessage(), e2);
             }
         }
@@ -778,5 +778,5 @@
                 directionKeys = SearchCompiler.compile(directionDefault, false, false);
             } catch (ParseError e2) {
-                throw new AssertionError("Unable to compile default pattern for direction keys: " + e2.getMessage());
+                throw new AssertionError("Unable to compile default pattern for direction keys: " + e2.getMessage(), e2);
             }
         }
Index: trunk/src/org/openstreetmap/josm/gui/mappaint/ElemStyles.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/mappaint/ElemStyles.java	(revision 7083)
+++ trunk/src/org/openstreetmap/josm/gui/mappaint/ElemStyles.java	(revision 7084)
@@ -118,8 +118,6 @@
             osm.mappaintStyle = style.put(p.a, p.b);
         } catch (StyleCache.RangeViolatedError e) {
-            AssertionError error = new AssertionError("Range violated. object: " + osm.getPrimitiveId() + ", current style: "+osm.mappaintStyle
-                    + ", scale: " + scale + ", new stylelist: " + p.a + ", new range: " + p.b);
-            error.initCause(e);
-            throw error;
+            throw new AssertionError("Range violated. object: " + osm.getPrimitiveId() + ", current style: "+osm.mappaintStyle
+                    + ", scale: " + scale + ", new stylelist: " + p.a + ", new range: " + p.b, e);
         }
         osm.mappaintCacheIdx = cacheIdx;