--- a/flys-client/src/main/java/de/intevation/flys/client/server/auth/plain/Authenticator.java	Fri Jul 13 13:38:32 2012 +0000
+++ b/flys-client/src/main/java/de/intevation/flys/client/server/auth/plain/Authenticator.java	Fri Jul 13 13:51:58 2012 +0000
@@ -12,9 +12,14 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.log4j.Logger;
+
 public class Authenticator
 implements   de.intevation.flys.client.server.auth.Authenticator
 {
+    private static final Logger log =
+        Logger.getLogger(Authenticator.class);
+
     public static class Authentication
     implements          de.intevation.flys.client.server.auth.Authentication
     {
@@ -71,6 +76,7 @@
     {
         File file = credentialsFile();
         if (!file.canRead() || !file.isFile()) {
+            log.error("cannot find user file '" + file + "'");
             return new Authentication(null, null, new ArrayList<String>(0));
         }
 
@@ -89,6 +95,7 @@
                     continue;
                 }
                 if (parts[0].equals(username)) {
+                    log.debug("user '" + username + "' found.");
                     if (parts[1].equals(password)) {
                         List<String> roles =
                             new ArrayList<String>(parts.length - 2);
@@ -97,6 +104,7 @@
                             roles.add(parts[i]);
                         }
 
+                        log.debug("success");
                         return new Authentication(username, password, roles);
                     }
                     // Stop: user found, wrong password
@@ -107,6 +115,7 @@
         finally {
             reader.close();
         }
+        log.debug("failed");
         return new Authentication(null, null, new ArrayList<String>(0));
     }
 }