时间工具：
报错信息：
java.lang.IllegalArgumentException: toolInput cannot be null or empty
at org.springframework.util.Assert.hasText(Assert.java:253)
at org.springframework.ai.tool.method.MethodToolCallback.call(MethodToolCallback.java:99)
at org.springframework.ai.model.tool.DefaultToolCallingManager.lambda$executeToolCall$5(DefaultToolCallingManager.java:220)
at io.micrometer.observation.Observation.observe(Observation.java:564)
at org.springframework.ai.model.tool.DefaultToolCallingManager.executeToolCall(DefaultToolCallingManager.java:217)
at org.springframework.ai.model.tool.DefaultToolCallingManager.executeToolCalls(DefaultToolCallingManager.java:137)
at org.springframework.ai.openai.OpenAiChatModel.lambda$internalStream$9(OpenAiChatModel.java:369)
at reactor.core.publisher.FluxDefer.subscribe(FluxDefer.java:46)
at reactor.core.publisher.FluxSubscribeOn$SubscribeOnSubscriber.run(FluxSubscribeOn.java:194)
at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:84)
at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:37)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1583)
Comment From: sunyuhan1998
This issue has already been fixed by PR: https://github.com/spring-projects/spring-ai/pull/4027. Maybe you could verify it using the latest snapshot version.
Comment From: Caoyaya
4027解决的事MCPCallback，我这个问题是MethodToolCallback