From d27ffc28e4c8e315368236ca66f893440e7201d7 Mon Sep 17 00:00:00 2001
From: Yana Stamcheva <yana@jitsi.org>
Date: Sun, 9 Sep 2012 07:14:28 +0000
Subject: [PATCH] Fixes NullPointerException thrown when a call is received and
 there's no available media device.

---
 .../impl/gui/main/call/PreCallDialog.java            | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/net/java/sip/communicator/impl/gui/main/call/PreCallDialog.java b/src/net/java/sip/communicator/impl/gui/main/call/PreCallDialog.java
index c3cc565d7..8fda98567 100644
--- a/src/net/java/sip/communicator/impl/gui/main/call/PreCallDialog.java
+++ b/src/net/java/sip/communicator/impl/gui/main/call/PreCallDialog.java
@@ -16,11 +16,15 @@
 import net.java.sip.communicator.util.swing.*;
 
 import org.jitsi.service.neomedia.*;
+import org.jitsi.service.neomedia.device.*;
 import org.jitsi.util.*;
 
 import com.explodingpixels.macwidgets.*;
 
 /**
+ * The <tt>PreCallDialog</tt> is a dialog allowing to pick-up or hangup a call.
+ * This is the parent dialog of the <tt>ReceivedCallDialog</tt> and the
+ * <tt>ChooseCallAccountDialog</tt>.
  *
  * @author Yana Stamcheva
  */
@@ -153,9 +157,13 @@ public PreCallDialog(String title, String text, Object[] accounts,
         this.video = video;
         this.mergeCall = existingCall;
 
+        MediaDevice mediaDevice
+            = GuiActivator.getMediaService().getDefaultDevice(
+                    MediaType.VIDEO, MediaUseCase.CALL);
+
         // check whether we have device enabled for capturing(sending)
-        this.video = video && GuiActivator.getMediaService().getDefaultDevice(
-            MediaType.VIDEO, MediaUseCase.CALL).getDirection().allowsSending();
+        if (mediaDevice != null)
+            this.video = video && mediaDevice.getDirection().allowsSending();
 
         this.initComponents();
     }