Index: java/org/apache/catalina/security/SecurityClassLoad.java
===================================================================
--- java/org/apache/catalina/security/SecurityClassLoad.java	(revision 1486869)
+++ java/org/apache/catalina/security/SecurityClassLoad.java	(working copy)
@@ -121,6 +121,7 @@
         String basePackage = "org.apache.coyote.http11.";
         loader.loadClass(basePackage + "InternalOutputBuffer$1");
         loader.loadClass(basePackage + "InternalOutputBuffer$2");
+        loader.loadClass(basePackage + "Constants");
     }