diff --git a/core/src/main/java/org/acegisecurity/userdetails/memory/UserAttribute.java b/core/src/main/java/org/acegisecurity/userdetails/memory/UserAttribute.java
index a6e4fbcbd5..55c3465915 100644
--- a/core/src/main/java/org/acegisecurity/userdetails/memory/UserAttribute.java
+++ b/core/src/main/java/org/acegisecurity/userdetails/memory/UserAttribute.java
@@ -53,6 +53,16 @@ public class UserAttribute {
         return (GrantedAuthority[]) this.authorities.toArray(toReturn);
     }
 
+    /**
+     * Set all authorities for this user.
+     * 
+     * @param authorities {@link List} <{@link GrantedAuthority}>
+     * @since 1.1
+     */
+    public void setAuthorities(List authorities) {
+        this.authorities = authorities;
+    }
+
     public String getPassword() {
         return password;
     }
diff --git a/core/src/main/java/org/acegisecurity/userdetails/memory/UserMap.java b/core/src/main/java/org/acegisecurity/userdetails/memory/UserMap.java
index 1444c15683..6882b40653 100644
--- a/core/src/main/java/org/acegisecurity/userdetails/memory/UserMap.java
+++ b/core/src/main/java/org/acegisecurity/userdetails/memory/UserMap.java
@@ -86,4 +86,14 @@ public class UserMap {
     public int getUserCount() {
         return this.userMap.size();
     }
+
+    /**
+     * Set the users in this {@link UserMap}. Overrides previously added users.
+     * 
+     * @param users {@link Map} <{@link String}, {@link UserDetails}> with pairs (username, userdetails)
+     * @since 1.1
+     */
+    public void setUsers(Map users) {
+        this.userMap = users;
+    }
 }