Index: D:/Coding/eclipse/workspace/tomcat 5.5.20/src/share/org/apache/catalina/core/StandardHost.java
===================================================================
--- D:/Coding/eclipse/workspace/tomcat 5.5.20/src/share/org/apache/catalina/core/StandardHost.java	(revision 478306)
+++ D:/Coding/eclipse/workspace/tomcat 5.5.20/src/share/org/apache/catalina/core/StandardHost.java	(working copy)
@@ -706,7 +706,7 @@
             } catch (Throwable t) {
                 log.error(sm.getString
                     ("standardHost.invalidErrorReportValveClass", 
-                     errorReportValveClass));
+                     errorReportValveClass),t);
             }
         }
         if(log.isInfoEnabled()) {