diff --git a/src/java/davmail/exception/DavMailAuthenticationException.java b/src/java/davmail/exception/DavMailAuthenticationException.java
index d2740141..259edc4b 100644
--- a/src/java/davmail/exception/DavMailAuthenticationException.java
+++ b/src/java/davmail/exception/DavMailAuthenticationException.java
@@ -23,7 +23,8 @@ package davmail.exception;
  */
 public class DavMailAuthenticationException extends DavMailException {
     /**
-     * Create a DavMail exception with the given BundleMessage key
+     * Create a DavMail authentication exception with the given BundleMessage key.
+     *
      * @param key message key
      */
     public DavMailAuthenticationException(String key) {
diff --git a/src/java/davmail/exception/DavMailException.java b/src/java/davmail/exception/DavMailException.java
index 61fb2d45..8445b1ff 100644
--- a/src/java/davmail/exception/DavMailException.java
+++ b/src/java/davmail/exception/DavMailException.java
@@ -29,23 +29,50 @@ import java.util.Locale;
 public class DavMailException extends IOException {
     private final BundleMessage message;
 
+    /**
+     * Create a DavMail exception with the given BundleMessage key and arguments.
+     *
+     * @param key message key
+     * @param arguments message values
+     */
     public DavMailException(String key, Object... arguments) {
          this.message = new BundleMessage(key, arguments);
     }
 
+    /**
+     * Get formatted message
+     *
+     * @return formatted message
+     */
     @Override
     public String getMessage() {
         return message.format();
     }
 
+    /**
+     * Get formatted message using locale.
+     *
+     * @param locale locale
+     * @return localized formatted message
+     */
     public String getMessage(Locale locale) {
         return message.format(locale);
     }
 
+    /**
+     * Get formatted message for logging.
+     *
+     * @return english formatted message
+     */
     public String getLogMessage() {
         return message.formatLog();
     }
 
+    /**
+     * Get internal exception BundleMessage.
+     *
+     * @return unformatted message
+     */
     public BundleMessage getBundleMessage() {
         return message;
     }
diff --git a/src/java/davmail/exchange/ExchangeSession.java b/src/java/davmail/exchange/ExchangeSession.java
index bb2e98fd..7451e360 100644
--- a/src/java/davmail/exchange/ExchangeSession.java
+++ b/src/java/davmail/exchange/ExchangeSession.java
@@ -2563,5 +2563,7 @@ public class ExchangeSession {
             }
         }
     }
-
+public HttpClient getHttpClient() {
+    return httpClient;
+}
 }