--- LoggerContext.java.orig	2008-08-16 18:03:26.000000000 +0200
+++ LoggerContext.java	2008-11-05 08:32:22.575104100 +0100
@@ -134,12 +134,15 @@
       }
       // move i left of the last point
       i = h + 1;
-      synchronized (logger) {
-        childLogger = logger.getChildByName(childName);
-        if (childLogger == null) {
-          childLogger = logger.createChildByName(childName);
-          loggerCache.put(childName, childLogger);
-          incSize();
+      synchronized (this)
+      {
+        synchronized (logger) {
+          childLogger = logger.getChildByName(childName);
+          if (childLogger == null) {
+            childLogger = logger.createChildByName(childName);
+            loggerCache.put(childName, childLogger);
+            incSize();
+          }
         }
       }
       logger = childLogger;