ByteArrayInputStream bais = new ByteArrayInputStream(decoded); final Avatar toCreate = AvatarImpl.createCustomAvatar(AVATAR_DEFAULT_BASE_FILENAME, contentType, project); Avatar createdAvatar = avatarManager.create(toCreate, bais, AvatarManager.ImageSize.LARGE.getOriginSelection()); IOUtil.shutdownStream(bais); final Long avatarId = createdAvatar.getId();