Handles unsupported 'data' media type when processing jingle offer.

src/net/java/sip/communicator/impl/protocol/jabber/CallPeerMediaHandlerJabberImpl.java

@@ -1469,7 +1469,7 @@ private void processContent(
         RtpDescriptionPacketExtension description
             = JingleUtils.getRtpDescription(content);
         MediaType mediaType
-            = MediaType.parseString(description.getMedia());
+            = JingleUtils.getMediaType(content);
 
         //stream target
         TransportManagerJabberImpl transportManager = getTransportManager();
@@ -1666,7 +1666,7 @@ public void processOffer(List<ContentPacketExtension> offer)
             RtpDescriptionPacketExtension description
                 = JingleUtils.getRtpDescription(content);
             MediaType mediaType
-                = MediaType.parseString( description.getMedia() );
+                = JingleUtils.getMediaType(content);
 
             List<MediaFormat> remoteFormats
                 = JingleUtils.extractFormats(

src/net/java/sip/communicator/impl/protocol/jabber/IceUdpTransportManager.java

@@ -890,15 +890,23 @@ protected synchronized boolean startConnectivityEstablishment(
             if (iceAgentStateIsRunning && (candidates.size() == 0))
                 return false;
 
+            String media = e.getKey();
+            IceMediaStream stream = iceAgent.getStream(media);
+
+            if (stream == null)
+            {
+                logger.warn(
+                    "No ICE media stream for media: " + media
+                        + " - ignored candidates.");
+                continue;
+            }
+
             // Sort the remote candidates (host < reflexive < relayed) in order
             // to create first the host, then the reflexive, the relayed
             // candidates and thus be able to set the relative-candidate
             // matching the rel-addr/rel-port attribute.
             Collections.sort(candidates);
 
-            String media = e.getKey();
-            IceMediaStream stream = iceAgent.getStream(media);
-
             // Different stream may have different ufrag/password
             String ufrag = transport.getUfrag();
 

src/net/java/sip/communicator/impl/protocol/jabber/jinglesdp/JingleUtils.java

@@ -15,9 +15,11 @@
 import net.java.sip.communicator.impl.protocol.jabber.extensions.jingle.ContentPacketExtension.SendersEnum;
 import net.java.sip.communicator.service.protocol.media.*;
 import net.java.sip.communicator.util.*;
+import net.java.sip.communicator.util.Logger;
 
 import org.jitsi.service.neomedia.*;
 import org.jitsi.service.neomedia.format.*;
+import org.jitsi.util.*;
 
 /**
  * The class contains a number of utility methods that are meant to facilitate
@@ -77,6 +79,12 @@ public static List<MediaFormat> extractFormats(
                                      DynamicPayloadTypeRegistry    ptRegistry)
     {
         List<MediaFormat> mediaFmts = new ArrayList<MediaFormat>();
+
+        if (description == null)
+        {
+            return mediaFmts;
+        }
+
         List<PayloadTypePacketExtension> payloadTypes
                                             = description.getPayloadTypes();
 
@@ -234,6 +242,11 @@ public static List<RTPExtension> extractRTPExtensions(
     {
         List<RTPExtension> extensionsList = new ArrayList<RTPExtension>();
 
+        if (desc == null)
+        {
+            return extensionsList;
+        }
+
         List<RTPHdrExtPacketExtension> extmapList = desc.getExtmapList();
 
         for (RTPHdrExtPacketExtension extmap : extmapList)
@@ -649,15 +662,31 @@ public static MediaType getMediaType(ContentPacketExtension content)
     {
         if (content == null)
             return null;
+
+        // We will use content name for determining media type
+        // if no RTP description is present(SCTP connection case)
+        String mediaTypeName = content.getName();
+
         RtpDescriptionPacketExtension desc = getRtpDescription(content);
         if (desc != null)
         {
-            String mediaTypeStr = desc.getMedia();
-            if (mediaTypeStr != null)
-                return MediaType.parseString(mediaTypeStr);
+            String rtpMedia = desc.getMedia();
+            if (!StringUtils.isNullOrEmpty(rtpMedia))
+            {
+                mediaTypeName = rtpMedia;
+            }
         }
-
-        return null;
+        // SDP:
+        // 'm=application SCTP/DTLS'
+        // ...
+        // 'a=mid:data'
+        // is used for SCTP connection in Jitsi Meet
+        // which translates to RtpDescriptionPacketExtension#media
+        if ("application".equals(mediaTypeName))
+        {
+            return MediaType.DATA;
+        }
+        return MediaType.parseString(mediaTypeName);
     }
 
 }

src/net/java/sip/communicator/service/protocol/media/CallPeerMediaHandler.java

@@ -611,6 +611,8 @@ protected MediaDirection getDirectionUserPreference(MediaType mediaType)
             return audioDirectionUserPreference;
         case VIDEO:
             return videoDirectionUserPreference;
+        case DATA:
+            return MediaDirection.INACTIVE;
         default:
             throw new IllegalArgumentException("mediaType");
         }
@@ -655,7 +657,10 @@ public SrtpControl getEncryptionMethod(MediaType mediaType)
      */
     protected List<RTPExtension> getExtensionsForType(MediaType type)
     {
-        return getDefaultDevice(type).getSupportedExtensions();
+        MediaDevice device = getDefaultDevice(type);
+        return device != null
+            ? device.getSupportedExtensions()
+            : new ArrayList<RTPExtension>();
     }
 
     /**