Android SDK - Cannot see "Subject" string in pre-existing ticket

I have a list of pre-existing tickets that I pull down from Zendesk which are of type RequestListItem which is Zendesk's code. I use this to display my pre-existing tickets, but if you look at the .class file for RequestListItem, you'll see that the Subject string is not in there:

class RequestListItem {
    private final RequestInfo requestInfo;

    RequestListItem(@NonNull RequestInfo requestInfo) {
        this.requestInfo = requestInfo;
    }

    boolean isFailed() {
        return CollectionUtils.isNotEmpty(this.requestInfo.getFailedMessageIds());
    }

    boolean isClosed() {
        return this.requestInfo.isClosed();
    }

    boolean isUnread() {
        return this.requestInfo.isUnread();
    }

    @NonNull
    String getFirstMessage() {
        return this.requestInfo.getFirstMessageInfo().getBody();
    }

    @NonNull
    String getLastMessage() {
        return this.requestInfo.getLastMessageInfo().getBody();
    }

    @NonNull
    Date getLastUpdated() {
        return this.requestInfo.getLastUpdated();
    }

    boolean hasAgentReplied() {
        return CollectionUtils.isNotEmpty(this.requestInfo.getAgentInfos());
    }

    @NonNull
    List<String> getLastCommentingAgentNames() {
        return CollectionUtils.map(this.requestInfo.getAgentInfos(), new ZFunc1<AgentInfo, String>() {
            public String apply(AgentInfo agentInfo) {
                return agentInfo.getName();
            }
        });
    }

    @Nullable
    String getAvatar() {
        return this.hasAgentReplied() ? ((AgentInfo)this.requestInfo.getAgentInfos().get(0)).getAvatar() : "";
    }

    long getItemId() {
        String localId = this.requestInfo.getLocalId();
        String remoteId = this.requestInfo.getRemoteId();
        return StringUtils.hasLength(localId) ? (long)localId.hashCode() : (long)remoteId.hashCode();
    }

    Builder configure(Builder configBuilder) {
        return configBuilder.withRequestInfo(this.requestInfo);
    }
}

Is there another way to get at a pre-existing ticket's Subject text?

Thanks!