### Eclipse Workspace Patch 1.0
#P mailbox-trunk-temp
Index: api/src/main/java/org/apache/james/mailbox/model/MailboxQuery.java
===================================================================
--- api/src/main/java/org/apache/james/mailbox/model/MailboxQuery.java	(revision 1651383)
+++ api/src/main/java/org/apache/james/mailbox/model/MailboxQuery.java	(working copy)
@@ -68,8 +68,11 @@
         }
         this.pathDelimiter = pathDelimiter;
 
+        //escape the whole string and replace the wildcard characters
+        String escapedRegex = ("\\Q" + this.expression + "\\E").replace(""+getFreeWildcard(), "\\E.*\\Q").replace(""+getLocalWildcard(), "\\E[^\\Q" + pathDelimiter + "\\E]*\\Q" );
+    	
         // Compile some pattern which is used later
-        pattern = Pattern.compile(this.expression.replaceAll("\\" + pathDelimiter ,"\\\\" + pathDelimiter).replaceAll("\\*", "\\.\\*").replaceAll("\\%", "[^\\" + pathDelimiter  + "]*"));
+        pattern = Pattern.compile(escapedRegex);
     }
 
     /**