undo the previous commit.

joram/a3/common/src/main/java/fr/dyade/aaa/common/Debug.java

 /*
- * Copyright (C) 2002 - 2010 ScalAgent Distributed Technologies
+ * Copyright (C) 2002 - 2008 ScalAgent Distributed Technologies
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -121,28 +121,30 @@ public class Debug {
   private static void initialize() throws Exception {
     String ldebugDir = debugDir;
     if (ldebugDir == null)
-      ldebugDir = System.getProperty(DEBUG_DIR_PROPERTY, DEFAULT_DEBUG_DIR);
-
+      ldebugDir = System.getProperty(DEBUG_DIR_PROPERTY);
     String ldebugFileName = debugFileName;
     if (ldebugFileName == null)
-      ldebugFileName = System.getProperty(DEBUG_FILE_PROPERTY, DEFAULT_DEBUG_FILE);
-
-    try {
+      ldebugFileName = System.getProperty(DEBUG_FILE_PROPERTY,
+                                          DEFAULT_DEBUG_FILE);
+    if (ldebugDir != null) {
       File debugFile = new File(ldebugDir, ldebugFileName);
-      if (debugFile.exists() && debugFile.isFile() && (debugFile.length() != 0)) {
-        ldebugFileName = debugFile.getPath();
-      } else {
-        throw new IOException();
+      try {
+        if (debugFile.exists() && debugFile.isFile() && (debugFile.length() != 0)) {
+          ldebugFileName = debugFile.getPath();
+        } else {
+          throw new IOException();
+        }
+      } catch (IOException exc) {
+        // debug configuration file seems not exist, search it from the
+        // search path used to load classes.
+        System.err.println("Unable to find \"" + debugFile.getPath() + "\".");
+        ldebugDir = null;
       }
-    } catch (IOException exc) {
-      // debug configuration file seems not exist, search it from the
-      // search path used to load classes.
-      System.err.println("Unable to find \"" + ldebugFileName + "\" in " + "\"" + ldebugDir + "\" directory.");
-      throw exc;
     }
 
     try {
-      System.setProperty(org.objectweb.util.monolog.Monolog.MONOLOG_FILE_NAME, ldebugFileName);
+      System.setProperty(org.objectweb.util.monolog.Monolog.MONOLOG_FILE_NAME,
+                         ldebugFileName);
       factory = org.objectweb.util.monolog.Monolog.initialize();
       if (factory == null) {
         System.err.println("Error in Monolog initialization: null factory");