Index: topia-security/src/java/org/codelutin/topia/security/util/TopiaSecurityCaching.java
diff -u topia-security/src/java/org/codelutin/topia/security/util/TopiaSecurityCaching.java:1.3 topia-security/src/java/org/codelutin/topia/security/util/TopiaSecurityCaching.java:1.4
--- topia-security/src/java/org/codelutin/topia/security/util/TopiaSecurityCaching.java:1.3	Thu Oct  5 14:21:27 2006
+++ topia-security/src/java/org/codelutin/topia/security/util/TopiaSecurityCaching.java	Wed Oct 25 09:13:29 2006
@@ -22,6 +22,9 @@
 
 import static org.apache.commons.collections.map.AbstractReferenceMap.SOFT;
 
+import java.util.Collections;
+import java.util.Map;
+
 import org.apache.commons.collections.map.ReferenceMap;
 
 /**
@@ -38,7 +41,7 @@
     /**
      * Map pour le stockage du première niveau
      */
-    protected ReferenceMap map;
+    protected Map map;
     
     /**
      * Contruit un TopiaSecurityCaching en précisant le nombre d'élément de la clé
@@ -46,7 +49,7 @@
      */
     public TopiaSecurityCaching(int level) {
         this.level = level;
-        map = new ReferenceMap(SOFT, SOFT);
+        map = Collections.synchronizedMap(new ReferenceMap(SOFT, SOFT));
     }
 
     /**
@@ -67,12 +70,12 @@
             throw new ArrayIndexOutOfBoundsException();
         }
         
-        ReferenceMap current = map;
+        Map current = map;
         for (int i = 0; i < keys.length -1 ; i++) {
             Object key = keys[i];
-            ReferenceMap next = (ReferenceMap) current.get(key);
+            Map next = (Map) current.get(key);
             if (next == null) {
-                next = new ReferenceMap(SOFT, SOFT);
+                next = Collections.synchronizedMap(new ReferenceMap(SOFT, SOFT));
                 current.put(key, next);
             }
             current = next;
@@ -85,12 +88,12 @@
      * @param keys clé de la valeur
      */
     public void clear(Object ... keys) {
-        ReferenceMap current = map;
+        Map current = map;
         for (int i = 0; i < keys.length -1 ; i++) {
             Object key = keys[i];
-            ReferenceMap next = (ReferenceMap) current.get(key);
+            Map next = (Map) current.get(key);
             if (next == null) {
-                next = new ReferenceMap(SOFT, SOFT);
+                next = Collections.synchronizedMap(new ReferenceMap(SOFT, SOFT));
                 current.put(key, next);
             }
             current = next;
@@ -109,10 +112,10 @@
             throw new ArrayIndexOutOfBoundsException();
         }
         
-        ReferenceMap current = map;
+        Map current = map;
         for (int i = 0; i < keys.length -1 ; i++) {
             Object key = keys[i];
-            ReferenceMap next = (ReferenceMap) current.get(key);
+            Map next = (Map) current.get(key);
             if (next == null) {
                 return null;
             } else {