HLS CMCD is causing exception for encrypted content #2312

boolean isMediaObjectType = isMediaObjectType(objectType);
      if (isMediaObjectType) {
        checkState(bufferedDurationUs != C.TIME_UNSET, "Buffered duration must be set");
        checkState(chunkDurationUs != C.TIME_UNSET, "Chunk duration must be set");
      }

@Nullable
  private Chunk maybeCreateEncryptionChunkFor(
      @Nullable Uri keyUri,
      int selectedTrackIndex,
      boolean isInitSegment,
      @Nullable CmcdData.Factory cmcdDataFactory) {
    if (keyUri == null) {
      return null;
    }

    @Nullable byte[] encryptionKey = keyCache.remove(keyUri);
    if (encryptionKey != null) {
      // The key was present in the key cache. We re-insert it to prevent it from being evicted by
      // the following key addition. Note that removal of the key is necessary to affect the
      // eviction order.
      keyCache.put(keyUri, encryptionKey);
      return null;
    }

    DataSpec dataSpec =
        new DataSpec.Builder().setUri(keyUri).setFlags(DataSpec.FLAG_ALLOW_GZIP).build();
    if (cmcdDataFactory != null) {
      if (isInitSegment) {
        cmcdDataFactory.setObjectType(CmcdData.OBJECT_TYPE_INIT_SEGMENT);
      }
      CmcdData cmcdData = cmcdDataFactory.createCmcdData();
      dataSpec = cmcdData.addToDataSpec(dataSpec);
    }

if (cmcdDataFactory != null) {
      CmcdData cmcdData =
          cmcdDataFactory.setChunkDurationUs(mediaSegment.durationUs).createCmcdData();
      dataSpec = cmcdData.addToDataSpec(dataSpec);
    }