Describe the bug
Error occured during streaming for getting response.

Log and Stack trace
2024-02-24T01:17:40.732+08:00 ERROR 27155 --- [alhost:1337/...] c.m.m.l.CustomStreamingResponseHandler : error processing stream to save question answer pairs

java.lang.IllegalArgumentException: byteCount < 0: -1
at okio.RealBufferedSource.request(RealBufferedSource.kt:204)
at okio.RealBufferedSource.require(RealBufferedSource.kt:202)
at okio.RealBufferedSource.readFully(RealBufferedSource.kt:276)
at okhttp3.internal.sse.ServerSentEventReader$Companion.readData(ServerSentEventReader.kt:148)
at okhttp3.internal.sse.ServerSentEventReader$Companion.access$readData(ServerSentEventReader.kt:112)
at okhttp3.internal.sse.ServerSentEventReader.processNextEvent(ServerSentEventReader.kt:57)
at okhttp3.internal.sse.RealEventSource.processResponse(RealEventSource.kt:75)
at okhttp3.internal.sse.RealEventSource.onResponse(RealEventSource.kt:46)
at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.kt:519)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1583)

To Reproduce
LocalAiStreamingChatModel model = LocalAiStreamingChatModel
.builder()
.baseUrl("http://localhost:1337/v1")
.modelName("openhermes-2.5-mistral-7b")
.maxTokens(2048)
.timeout(Duration.ofMinutes(2))
.temperature(0.7)
.topP(0.95)
.build();

List messages = Arrays.asList(
systemMessage(
"""

"""
),
userMessage()
);
chatLanguageModel.generate(
messages,
new CustomStreamingResponseHandler());

public class CustomStreamingResponseHandler implements StreamingResponseHandler<AiMessage> {

    private final Logger log = LoggerFactory.getLogger(CustomStreamingResponseHandler.class);

    @Override
    public void onNext(String token) {}

    @Override
    public void onComplete(Response<AiMessage> response) {
        log.debug("response from AI : {}", response.content().text());
    }

    @Override
    public void onError(Throwable error) {
        log.error("error processing stream to save question answer pairs", error);
    }
}

Expected behavior
I should be able to get my responses normally, but it hit onError instead.

Please complete the following information:

• LangChain4j version: e.g. 0.27.1
• Java version: e.g. 11
• Spring Boot version (if applicable): e.g. 3.2

Additional context
I believe the problem occurs at the okhttp level during streaming.