From e8cfcb57ffef3d68cc23b28f7da3eb0b3f69b18f Mon Sep 17 00:00:00 2001
From: mguessan <mguessan@3d1905a2-6b24-0410-a738-b14d5a86fcbd>
Date: Tue, 13 Sep 2011 07:51:21 +0000
Subject: [PATCH] Do not always log stacktrace in handleNetworkDown

git-svn-id: http://svn.code.sf.net/p/davmail/code/trunk@1786 3d1905a2-6b24-0410-a738-b14d5a86fcbd
---
 src/java/davmail/exchange/ExchangeSessionFactory.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/java/davmail/exchange/ExchangeSessionFactory.java b/src/java/davmail/exchange/ExchangeSessionFactory.java
index cae84481..2a892ef7 100644
--- a/src/java/davmail/exchange/ExchangeSessionFactory.java
+++ b/src/java/davmail/exchange/ExchangeSessionFactory.java
@@ -33,6 +33,7 @@ import org.apache.commons.httpclient.methods.GetMethod;
 import java.io.IOException;
 import java.net.NetworkInterface;
 import java.net.SocketException;
+import java.net.UnknownHostException;
 import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.Map;
@@ -235,7 +236,10 @@ public final class ExchangeSessionFactory {
     private static void handleNetworkDown(Exception exc) throws DavMailException {
         if (!checkNetwork() || configChecked) {
             ExchangeSession.LOGGER.warn(BundleMessage.formatLog("EXCEPTION_NETWORK_DOWN"));
-            ExchangeSession.LOGGER.debug(exc, exc);
+            // log full stack trace for unknown errors
+            if (!(exc instanceof UnknownHostException)) {
+                ExchangeSession.LOGGER.debug(exc, exc);
+            }
             throw new NetworkDownException("EXCEPTION_NETWORK_DOWN");
         } else {
             BundleMessage message = new BundleMessage("EXCEPTION_CONNECT", exc.getClass().getName(), exc.getMessage());