Index: trunk/src/org/openstreetmap/josm/data/projection/CustomProjection.java
===================================================================
--- trunk/src/org/openstreetmap/josm/data/projection/CustomProjection.java	(revision 7182)
+++ trunk/src/org/openstreetmap/josm/data/projection/CustomProjection.java	(revision 7184)
@@ -187,5 +187,5 @@
                 }
                 if (!Param.paramsByKey.containsKey(key))
-                    throw new ProjectionConfigurationException(tr("Unkown parameter: ''{0}''.", key));
+                    throw new ProjectionConfigurationException(tr("Unknown parameter: ''{0}''.", key));
                 if (Param.paramsByKey.get(key).hasValue && value == null)
                     throw new ProjectionConfigurationException(tr("Value expected for parameter ''{0}''.", key));
@@ -279,5 +279,5 @@
         if (datumId != null) {
             Datum datum = Projections.getDatum(datumId);
-            if (datum == null) throw new ProjectionConfigurationException(tr("Unkown datum identifier: ''{0}''", datumId));
+            if (datum == null) throw new ProjectionConfigurationException(tr("Unknown datum identifier: ''{0}''", datumId));
             return datum;
         }
@@ -337,5 +337,5 @@
 
         Proj proj =  Projections.getBaseProjection(id);
-        if (proj == null) throw new ProjectionConfigurationException(tr("Unkown projection identifier: ''{0}''", id));
+        if (proj == null) throw new ProjectionConfigurationException(tr("Unknown projection identifier: ''{0}''", id));
 
         ProjParameters projParams = new ProjParameters();
Index: trunk/src/org/openstreetmap/josm/gui/preferences/projection/AbstractProjectionChoice.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/preferences/projection/AbstractProjectionChoice.java	(revision 7182)
+++ trunk/src/org/openstreetmap/josm/gui/preferences/projection/AbstractProjectionChoice.java	(revision 7184)
@@ -62,5 +62,5 @@
         String pref = Projections.getInit(code);
         if (pref == null)
-            throw new AssertionError("Error: Unkown projection code");
+            throw new AssertionError("Error: Unknown projection code");
         return new CustomProjection(getProjectionName(), code, pref, getCacheDir());
     }