Handling Errors when Topics dont exist

From @tapitoe on December 7, 2018 18:33

Is it possible to handle the error gracefully when topics don’t exist?

Spring Boot: 1.5.14.RELEASE Spring Cloud Stream Dependencies: Ditmars.SR4 Kafka Server: 2.11-1.1.0

Error:

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled. 2018-12-07 10:26:03,921 [restartedMain ] ERROR o.s.b.SpringApplication.reportFailure(ln:771) - Application startup failed org.springframework.context.ApplicationContextException: Failed to start bean 'inputBindingLifecycle'; nested exception is org.springframework.cloud.stream.binder.BinderException: Cannot initialize binder: at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:176) ~[spring-context-4.3.18.RELEASE.jar:4.3.18.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:50) ~[spring-context-4.3.18.RELEASE.jar:4.3.18.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:346) ~[spring-context-4.3.18.RELEASE.jar:4.3.18.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:149) ~[spring-context-4.3.18.RELEASE.jar:4.3.18.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:112) ~[spring-context-4.3.18.RELEASE.jar:4.3.18.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:880) ~[spring-context-4.3.18.RELEASE.jar:4.3.18.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144) ~[spring-boot-1.5.14.RELEASE.jar:1.5.14.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546) ~[spring-context-4.3.18.RELEASE.jar:4.3.18.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.14.RELEASE.jar:1.5.14.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.14.RELEASE.jar:1.5.14.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.14.RELEASE.jar:1.5.14.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.14.RELEASE.jar:1.5.14.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.14.RELEASE.jar:1.5.14.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.14.RELEASE.jar:1.5.14.RELEASE] at abc.xyz.apps.Application.main(Application.java:27) [classes/:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_172] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_172] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_172] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_172] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.5.14.RELEASE.jar:1.5.14.RELEASE] Caused by: org.springframework.cloud.stream.binder.BinderException: Cannot initialize binder: at org.springframework.cloud.stream.binder.kafka.provisioning.KafkaTopicProvisioner.getPartitionsForTopic(KafkaTopicProvisioner.java:271) ~[spring-cloud-stream-binder-kafka-core-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binder.kafka.KafkaMessageChannelBinder.createConsumerEndpoint(KafkaMessageChannelBinder.java:260) ~[spring-cloud-stream-binder-kafka-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binder.kafka.KafkaMessageChannelBinder.createConsumerEndpoint(KafkaMessageChannelBinder.java:101) ~[spring-cloud-stream-binder-kafka-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binder.AbstractMessageChannelBinder.doBindConsumer(AbstractMessageChannelBinder.java:233) ~[spring-cloud-stream-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binder.AbstractMessageChannelBinder.doBindConsumer(AbstractMessageChannelBinder.java:66) ~[spring-cloud-stream-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binder.AbstractBinder.bindConsumer(AbstractBinder.java:137) ~[spring-cloud-stream-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binding.BindingService.bindConsumer(BindingService.java:97) ~[spring-cloud-stream-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binding.BindableProxyFactory.bindInputs(BindableProxyFactory.java:221) ~[spring-cloud-stream-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binding.InputBindingLifecycle.start(InputBindingLifecycle.java:55) ~[spring-cloud-stream-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:173) ~[spring-context-4.3.18.RELEASE.jar:4.3.18.RELEASE] ... 19 more Caused by: java.lang.NullPointerException at org.springframework.cloud.stream.binder.kafka.provisioning.KafkaTopicProvisioner$2.doWithRetry(KafkaTopicProvisioner.java:252) ~[spring-cloud-stream-binder-kafka-core-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binder.kafka.provisioning.KafkaTopicProvisioner$2.doWithRetry(KafkaTopicProvisioner.java:246) ~[spring-cloud-stream-binder-kafka-core-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:287) ~[spring-retry-1.2.2.RELEASE.jar:?] at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:164) ~[spring-retry-1.2.2.RELEASE.jar:?] at org.springframework.cloud.stream.binder.kafka.provisioning.KafkaTopicProvisioner.getPartitionsForTopic(KafkaTopicProvisioner.java:246) ~[spring-cloud-stream-binder-kafka-core-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binder.kafka.KafkaMessageChannelBinder.createConsumerEndpoint(KafkaMessageChannelBinder.java:260) ~[spring-cloud-stream-binder-kafka-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binder.kafka.KafkaMessageChannelBinder.createConsumerEndpoint(KafkaMessageChannelBinder.java:101) ~[spring-cloud-stream-binder-kafka-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binder.AbstractMessageChannelBinder.doBindConsumer(AbstractMessageChannelBinder.java:233) ~[spring-cloud-stream-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binder.AbstractMessageChannelBinder.doBindConsumer(AbstractMessageChannelBinder.java:66) ~[spring-cloud-stream-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binder.AbstractBinder.bindConsumer(AbstractBinder.java:137) ~[spring-cloud-stream-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binding.BindingService.bindConsumer(BindingService.java:97) ~[spring-cloud-stream-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binding.BindableProxyFactory.bindInputs(BindableProxyFactory.java:221) ~[spring-cloud-stream-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.cloud.stream.binding.InputBindingLifecycle.start(InputBindingLifecycle.java:55) ~[spring-cloud-stream-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:173) ~[spring-context-4.3.18.RELEASE.jar:4.3.18.RELEASE] ... 19 more

Copied from original issue: spring-cloud/spring-cloud-stream#1548

[sobychacko]

@tapitoe We are addressing this issue. Thank you for pointing this out.

[garyrussell]

spring.cloud.stream.kafka.binder.auto-create-topics=false

If you don’t allow auto-creation of topics then they must already exist, period.

We should fail more gracefully than an NPE, though.