I am developing an AI-assisted interface using LangChain4j and injecting OllamaChatModel, but I am encountering an issue where the application fails to start due to a NullPointerException related to @AiService.
2025-02-16T21:47:29.387-07:00 WARN 25236 --- [ main] o.s.w.c.s.GenericWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: java.lang.NullPointerException: Cannot invoke "dev.langchain4j.service.spring.AiService.chatModel()" because "aiServiceAnnotation" is null
@Service public class LlamaService implements Assistant { private final OllamaChatModel model; public LlamaService() { this.model = OllamaChatModel.builder() .temperature(0.4) .responseFormat(JSON) // Ensure JSON is correctly imported .modelName("llama2") .baseUrl("http://127.0.0.1:11434") .build(); } public String chat(String userMessage) { return model.chat(userMessage); }} --- @AiService(wiringMode = EXPLICIT, chatModel = "ollamaChatModel") interface Assistant { @SystemMessage("You are a polite assistant") String chat(String userMessage); } How should I properly configure @AiService so that the chatModel is correctly injected? <dependency> <groupId>dev.langchain4j</groupId> <artifactId>langchain4j-ollama</artifactId> <version>1.0.0-beta1</version> </dependency> <dependency> <groupId>dev.langchain4j</groupId> <artifactId>langchain4j-spring-boot-starter</artifactId> <version>1.0.0-beta1</version> </dependency> 
