OllamaChatModel bug

java.lang.NullPointerException: Cannot invoke "java.time.Duration.plus(java.time.Duration)" because "evalDuration" is null
at org.springframework.ai.ollama.OllamaChatModel.from(OllamaChatModel.java:174) ~[spring-ai-ollama-1.0.0.jar:1.0.0]
Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException:
Assembly trace from producer [reactor.core.publisher.FluxMapFuseable] :
reactor.core.publisher.Flux.map(Flux.java:6631)
org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$10(OllamaChatModel.java:309)
Error has been observed at the following site(s):
*______Flux.map ⇢ at org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$10(OllamaChatModel.java:309)
| Flux.flatMap ⇢ at org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$10(OllamaChatModel.java:336)
| Flux.doOnError ⇢ at org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$10(OllamaChatModel.java:359)
| Flux.doFinally ⇢ at org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$10(OllamaChatModel.java:360)
| Flux.contextWrite ⇢ at org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$10(OllamaChatModel.java:363)
| Flux.doOnSubscribe ⇢ at org.springframework.ai.chat.model.MessageAggregator.aggregate(MessageAggregator.java:73)
| Flux.doOnNext ⇢ at org.springframework.ai.chat.model.MessageAggregator.aggregate(MessageAggregator.java:84)
| Flux.doOnComplete ⇢ at org.springframework.ai.chat.model.MessageAggregator.aggregate(MessageAggregator.java:123)
| Flux.doOnError ⇢ at org.springframework.ai.chat.model.MessageAggregator.aggregate(MessageAggregator.java:150)
*__Flux.deferContextual ⇢ at org.springframework.ai.ollama.OllamaChatModel.internalStream(OllamaChatModel.java:293)
*___________Flux.defer ⇢ at org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$7(OllamaChatModel.java:340)
| Flux.subscribeOn ⇢ at org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$7(OllamaChatModel.java:353)
*Flux.flatMap ⇢ at org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$10(OllamaChatModel.java:336)
| Flux.doOnError ⇢ at org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$10(OllamaChatModel.java:359)
| Flux.doFinally ⇢ at org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$10(OllamaChatModel.java:360)
| Flux.contextWrite ⇢ at org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$10(OllamaChatModel.java:363)
| Flux.doOnSubscribe ⇢ at org.springframework.ai.chat.model.MessageAggregator.aggregate(MessageAggregator.java:73)
| Flux.doOnNext ⇢ at org.springframework.ai.chat.model.MessageAggregator.aggregate(MessageAggregator.java:84)
| Flux.doOnComplete ⇢ at org.springframework.ai.chat.model.MessageAggregator.aggregate(MessageAggregator.java:123)
| Flux.doOnError ⇢ at org.springframework.ai.chat.model.MessageAggregator.aggregate(MessageAggregator.java:150)
*Flux.deferContextual ⇢ at org.springframework.ai.ollama.OllamaChatModel.internalStream(OllamaChatModel.java:293)
| Flux.map ⇢ at org.springframework.ai.chat.client.advisor.ChatModelStreamAdvisor.adviseStream(ChatModelStreamAdvisor.java:53)
| Flux.publishOn ⇢ at org.springframework.ai.chat.client.advisor.ChatModelStreamAdvisor.adviseStream(ChatModelStreamAdvisor.java:57)
| Flux.doOnError ⇢ at org.springframework.ai.chat.client.advisor.DefaultAroundAdvisorChain.lambda$nextStream$5(DefaultAroundAdvisorChain.java:137)
| Flux.doFinally ⇢ at org.springframework.ai.chat.client.advisor.DefaultAroundAdvisorChain.lambda$nextStream$5(DefaultAroundAdvisorChain.java:138)
| Flux.contextWrite ⇢ at org.springframework.ai.chat.client.advisor.DefaultAroundAdvisorChain.lambda$nextStream$5(DefaultAroundAdvisorChain.java:139)
*____________Flux.defer ⇢ at org.springframework.ai.chat.client.advisor.DefaultAroundAdvisorChain.lambda$nextStream$6(DefaultAroundAdvisorChain.java:136)
*__Flux.deferContextual ⇢ at org.springframework.ai.chat.client.advisor.DefaultAroundAdvisorChain.nextStream(DefaultAroundAdvisorChain.java:117)
*__Mono.flatMapMany ⇢ at org.springframework.ai.chat.client.advisor.MessageChatMemoryAdvisor.adviseStream(MessageChatMemoryAdvisor.java:126)
| Flux.mapNotNull ⇢ at org.springframework.ai.chat.client.ChatClientMessageAggregator.aggregateChatClientResponse(ChatClientMessageAggregator.java:48)
| Flux.doOnSubscribe ⇢ at org.springframework.ai.chat.model.MessageAggregator.aggregate(MessageAggregator.java:73)
| Flux.doOnNext ⇢ at org.springframework.ai.chat.model.MessageAggregator.aggregate(MessageAggregator.java:84)
| Flux.doOnComplete ⇢ at org.springframework.ai.chat.model.MessageAggregator.aggregate(MessageAggregator.java:123)
Original Stack Trace:
at org.springframework.ai.ollama.OllamaChatModel.from(OllamaChatModel.java:174) ~[spring-ai-ollama-1.0.0.jar:1.0.0]
at org.springframework.ai.ollama.OllamaChatModel.lambda$internalStream$5(OllamaChatModel.java:332) ~[spring-ai-ollama-1.0.0.jar:1.0.0]
at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:113) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxHandleFuseable$HandleFuseableSubscriber.onNext(FluxHandleFuseable.java:194) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxFlatMap$FlatMapMain.tryEmit(FluxFlatMap.java:547) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxFlatMap$FlatMapInner.onNext(FluxFlatMap.java:988) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.Operators$BaseFluxToMonoOperator.completePossiblyEmpty(Operators.java:2097) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.MonoReduceSeed$ReduceSeedSubscriber.onComplete(MonoReduceSeed.java:163) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxWindowPredicate$WindowFlux.checkTerminated(FluxWindowPredicate.java:768) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxWindowPredicate$WindowFlux.drainRegular(FluxWindowPredicate.java:662) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxWindowPredicate$WindowFlux.drain(FluxWindowPredicate.java:748) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxWindowPredicate$WindowFlux.onComplete(FluxWindowPredicate.java:814) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxWindowPredicate$WindowPredicateMain.onNext(FluxWindowPredicate.java:243) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.MonoFlatMapMany$FlatMapManyInner.onNext(MonoFlatMapMany.java:251) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:107) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxHandleFuseable$HandleFuseableConditionalSubscriber.onNext(FluxHandleFuseable.java:505) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxConcatArray$ConcatArraySubscriber.onNext(FluxConcatArray.java:180) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.drainAsync(FluxFlattenIterable.java:453) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.drain(FluxFlattenIterable.java:724) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.onNext(FluxFlattenIterable.java:256) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxPublish$PublishSubscriber.drain(FluxPublish.java:571) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxPublish$PublishSubscriber.onNext(FluxPublish.java:310) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:107) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onNext(FluxMapFuseable.java:299) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.drainAsync(FluxFlattenIterable.java:453) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.drain(FluxFlattenIterable.java:724) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.onNext(FluxFlattenIterable.java:256) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.adapter.JdkFlowAdapter$SubscriberToRS.onNext(JdkFlowAdapter.java:150) ~[reactor-core-3.7.2.jar:3.7.2]
at java.net.http/jdk.internal.net.http.ResponseSubscribers$PublishingBodySubscriber.onNext(ResponseSubscribers.java:1003) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.ResponseSubscribers$PublishingBodySubscriber.onNext(ResponseSubscribers.java:843) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.Http1Response$Http1BodySubscriber.onNext(Http1Response.java:382) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.Http1Response$Http1BodySubscriber.onNext(Http1Response.java:297) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.ResponseContent$ChunkedBodyParser.accept(ResponseContent.java:229) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.ResponseContent$ChunkedBodyParser.accept(ResponseContent.java:129) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.Http1Response$BodyReader.handle(Http1Response.java:790) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.Http1Response$BodyReader.handle(Http1Response.java:720) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.Http1Response$Receiver.accept(Http1Response.java:612) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.Http1Response$BodyReader.tryAsyncReceive(Http1Response.java:750) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.Http1AsyncReceiver.flush(Http1AsyncReceiver.java:233) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.common.SequentialScheduler$LockingRestartableTask.run(SequentialScheduler.java:205) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.common.SequentialScheduler$CompleteRestartableTask.run(SequentialScheduler.java:149) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.common.SequentialScheduler$SchedulableTask.run(SequentialScheduler.java:230) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.common.SequentialScheduler.runOrSchedule(SequentialScheduler.java:303) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.common.SequentialScheduler.runOrSchedule(SequentialScheduler.java:256) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.Http1AsyncReceiver$Http1AsyncDelegateSubscription.request(Http1AsyncReceiver.java:153) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.ResponseSubscribers$PublishingBodySubscriber$SubscriptionRef.request(ResponseSubscribers.java:896) ~[java.net.http:na]
at reactor.adapter.JdkFlowAdapter$SubscriberToRS.request(JdkFlowAdapter.java:165) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.onSubscribe(FluxFlattenIterable.java:241) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.adapter.JdkFlowAdapter$SubscriberToRS.onSubscribe(JdkFlowAdapter.java:145) ~[reactor-core-3.7.2.jar:3.7.2]
at java.net.http/jdk.internal.net.http.ResponseSubscribers$PublishingBodySubscriber$SubscriptionRef.subscribe(ResponseSubscribers.java:908) ~[java.net.http:na]
at java.net.http/jdk.internal.net.http.ResponseSubscribers$PublishingBodySubscriber.lambda$subscribe$3(ResponseSubscribers.java:957) ~[java.net.http:na]
at java.base/java.util.concurrent.CompletableFuture.uniAcceptNow(CompletableFuture.java:757) ~[na:na]
at java.base/java.util.concurrent.CompletableFuture.uniAcceptStage(CompletableFuture.java:735) ~[na:na]
at java.base/java.util.concurrent.CompletableFuture.thenAccept(CompletableFuture.java:2182) ~[na:na]
at java.net.http/jdk.internal.net.http.ResponseSubscribers$PublishingBodySubscriber.subscribe(ResponseSubscribers.java:954) ~[java.net.http:na]
at reactor.adapter.JdkFlowAdapter$FlowPublisherAsFlux.subscribe(JdkFlowAdapter.java:68) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.InternalFluxOperator.subscribe(InternalFluxOperator.java:68) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxPublish.connect(FluxPublish.java:106) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxAutoConnectFuseable.subscribe(FluxAutoConnectFuseable.java:63) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.Flux.subscribe(Flux.java:8891) ~[reactor-core-3.7.2.jar:3.7.2]
at org.springframework.http.client.reactive.AbstractClientHttpResponse$SingleSubscriberPublisher.subscribe(AbstractClientHttpResponse.java:112) ~[spring-web-6.2.2.jar:6.2.2]
at reactor.core.publisher.FluxSource.subscribe(FluxSource.java:71) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.Flux.subscribe(Flux.java:8891) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxConcatArray$ConcatArraySubscriber.onComplete(FluxConcatArray.java:238) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxConcatArray.subscribe(FluxConcatArray.java:79) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.InternalFluxOperator.subscribe(InternalFluxOperator.java:68) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxDeferContextual.subscribe(FluxDeferContextual.java:57) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.Flux.subscribe(Flux.java:8891) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.MonoFlatMapMany$FlatMapManyMain.onNext(MonoFlatMapMany.java:196) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:107) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxDoFinally$DoFinallySubscriber.onNext(FluxDoFinally.java:113) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableConditionalSubscriber.onNext(FluxPeekFuseable.java:503) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onNext(FluxPeekFuseable.java:210) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onNext(FluxPeekFuseable.java:210) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onNext(FluxPeekFuseable.java:210) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.complete(MonoIgnoreThen.java:294) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onNext(MonoIgnoreThen.java:188) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.MonoCompletionStage$MonoCompletionStageSubscription.apply(MonoCompletionStage.java:121) ~[reactor-core-3.7.2.jar:3.7.2]
at reactor.core.publisher.MonoCompletionStage$MonoCompletionStageSubscription.apply(MonoCompletionStage.java:67) ~[reactor-core-3.7.2.jar:3.7.2]
at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:934) ~[na:na]
at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:911) ~[na:na]
at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510) ~[na:na]
at java.base/java.util.concurrent.CompletableFuture.postFire(CompletableFuture.java:614) ~[na:na]
at java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:844) ~[na:na]
at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483) ~[na:na]
at java.base/java.util.concurrent.ForkJoinTask.doExec$$$capture(ForkJoinTask.java:373) ~[na:na]
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java) ~[na:na]
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182) ~[na:na]
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) ~[na:na]
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622) ~[na:na]
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165) ~[na:na]

Start with OllamaChatModel.java at line 174, then trace the streaming entry points around lines 293-363 shown in the stack trace. Reproduce the reported streaming request and inspect how evalDuration reaches from(); done means the OllamaChatModel streaming path no longer throws the reported NullPointerException.