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learning-spring-boot-2nd-edition-code's Issues

Trouble shooting SpringAMQP

I know that I'm using a different setup then the author did when they wrote the book and code for the book. In fact I'm using JDK 9.0.x, Windows 10 Pro and I'm programming this using Kotlin not Java.
I'm currently working with the code from chapter 7, part 1 where you have a Comment package running by itself, a Image package running by itself and a Eureka server running by itself.

I suspect that the SpringAMQP message is not being received, but I do not now how to fix this.
How can I go about debugging the message delivery/receiving parts?
Are you able to verify that the code from Chapter 7, Part 1 works as expected?

The issue that I'm facing right now is that new comments are not sent to the Comment package so that they can be saved in the server. Before I split up the program up comments where being saved.

Here are the image file records as shown in MongoDB

> db.image.find()
{ "_id" : "562bf88f-38e7-4927-a4f9-c04017042cbf", "name" : "image5.png", "_class" : "ca.letkeman.learningspringboot.images.Image" }
{ "_id" : "21879969-46ab-44e9-8e85-6a5f00172fc8", "name" : "image1.png", "_class" : "ca.letkeman.learningspringboot.images.Image" }

I do not get any errors showing up in the images package logs as show below

DEBUG 11492 --- [ctor-http-nio-3] .b.a.e.w.r.WebFluxEndpointHandlerMapping : Looking up handler method for path /comments
DEBUG 11492 --- [ctor-http-nio-3] .b.a.e.w.r.WebFluxEndpointHandlerMapping : Did not find handler method for [/comments]
 INFO 11492 --- [ctor-http-nio-3] addComment-newComment pre map            : | onSubscribe([Fuseable] FluxOnAssembly.OnAssemblySubscriber)
 INFO 11492 --- [ctor-http-nio-3] addComment-newComment pre flatmap        : | onSubscribe([Fuseable] FluxOnAssembly.OnAssemblySubscriber)
 INFO 11492 --- [ctor-http-nio-3] addComment-newComment pre flatmap        : | request(unbounded)
 INFO 11492 --- [ctor-http-nio-3] addComment-newComment pre map            : | request(unbounded)
 INFO 11492 --- [ctor-http-nio-3] addComment-newComment pre map            : | onNext(Comment(id=null, imageId=562bf88f-38e7-4927-a4f9-c04017042cbf, comment=test))
 INFO 11492 --- [ctor-http-nio-3] Constructor                              : onNext(GenericMessage [payload=Comment(id=null, imageId=562bf88f-38e7-4927-a4f9-c04017042cbf, comment=test), headers={contentType=application/json, id=cb535384-5bd2-6df8-81e0-cd6bd294662b, timestamp=1516732480640}])
 INFO 11492 --- [ctor-http-nio-3] o.s.a.r.c.CachingConnectionFactory       : Created new connection: SpringAMQP#6115a27d:0/SimpleConnection@25d44445 [delegate=amqp://[email protected]:5672/, localPort= 65519]
 INFO 11492 --- [ctor-http-nio-3] addComment-newComment pre flatmap        : | onNext(Comment(id=null, imageId=562bf88f-38e7-4927-a4f9-c04017042cbf, comment=test))
 INFO 11492 --- [ctor-http-nio-3] addComment-commentsink-redirect          : onSubscribe([Fuseable] FluxOnAssembly.OnAssemblySubscriber)
 INFO 11492 --- [ctor-http-nio-3] addComment-commentsink-redirect          : request(unbounded)
 INFO 11492 --- [ctor-http-nio-3] addComment-commentsink-redirect          : onNext(redirect:/)
 INFO 11492 --- [ctor-http-nio-3] addComment-commentsink-redirect          : onComplete()
 INFO 11492 --- [ctor-http-nio-3] addComment-newComment pre map            : | onComplete()
 INFO 11492 --- [ctor-http-nio-3] addComment-newComment pre flatmap        : | onComplete()
DEBUG 11492 --- [ctor-http-nio-3] .b.a.e.w.r.WebFluxEndpointHandlerMapping : Looking up handler method for path /
DEBUG 11492 --- [ctor-http-nio-3] .b.a.e.w.r.WebFluxEndpointHandlerMapping : Did not find handler method for [/]
 INFO 11492 --- [ctor-http-nio-3] homecontroller-index                     : onSubscribe([Fuseable] FluxOnAssembly.OnAssemblySubscriber)
 INFO 11492 --- [ctor-http-nio-3] homecontroller-index                     : request(unbounded)
 INFO 11492 --- [ctor-http-nio-3] homecontroller-index                     : onNext(index)
 INFO 11492 --- [ctor-http-nio-3] Findall                                  : | onSubscribe([Fuseable] FluxOnAssembly.OnAssemblySubscriber)
 INFO 11492 --- [ctor-http-nio-3] Findall                                  : | request(unbounded)

The standalone Comment package does not have show any errors, but it does show the following line every five minutes:

INFO 13012 --- [trap-executor-0] c.n.d.s.r.aws.ConfigClusterResolver      : Resolving eureka endpoints via configuration

I should point out that I've tried using Java instead of Kotlin on all three systems and I get the same result. I even copied the application.yml for each system to my local setup and the result remains the same.

This Eureka code on Java 9 also needs

If you are using Java 9 then you will need to add these lines to your build.gradle for the Eureka project so that you do not get any errors

compile 'javax.xml.bind:jaxb-api:2.3.0'
compile 'com.sun.xml.bind:jaxb-impl:2.3.0'
compile 'com.sun.xml.bind:jaxb-core:2.3.0'
compile 'com.sun.activation:javax.activation:1.2.0'

Chapter 1

I only get empty objects in Chapter 1 when running the code?
( Java 8 and only cloning the source and running it)
[{},{},{}]

Chapter 4: ImageRepository bean not found

HomeControllerTests gets me "ImageRepository bean not found".
For me this version of annotation fixed the problem:

@MockBeans({ @MockBean(ImageService.class), @MockBean(ImageRepository.class) })
public class HomeControllerTests {

@Autowired
WebTestClient webClient;

@Autowired
ImageService imageService;

Java 9 : Chapter 7: Comments & Images

If you are using JDK 9.0.x and are working with both the Comments and the Images packages in chapter 7 you will need to add the following Java Environment variable
/env --add-modules java.sql
This is due to Java 9 "Project Jigsaw".
Otherwise you will get a exceptions and Images and Comments will not run.

Chapter 9, part1: Getting issues when securing images microservice

I am getting the errors below when I try to secure images microservice with the following security configuration which in this repo:

@EnableWebFluxSecurity
@EnableReactiveMethodSecurity
public class SecurityConfiguration {

	@Bean
	SecurityWebFilterChain springWebFilterChain(ServerHttpSecurity http) {
		return http.securityContextRepository(new WebSessionServerSecurityContextRepository()).authorizeExchange()
				.anyExchange().authenticated().and().csrf().disable().build();
	}
} 


java.lang.NullPointerException: null
	at org.springframework.session.events.AbstractSessionEvent.<init>(AbstractSessionEvent.java:40) ~[spring-session-core-2.1.8.RELEASE.jar:2.1.8.RELEASE]
	at org.springframework.session.events.SessionDestroyedEvent.<init>(SessionDestroyedEvent.java:36) ~[spring-session-core-2.1.8.RELEASE.jar:2.1.8.RELEASE]
	at org.springframework.session.events.SessionDeletedEvent.<init>(SessionDeletedEvent.java:39) ~[spring-session-core-2.1.8.RELEASE.jar:2.1.8.RELEASE]
	at org.springframework.session.data.mongo.ReactiveMongoOperationsSessionRepository.lambda$deleteById$6(ReactiveMongoOperationsSessionRepository.java:142) ~[spring-session-data-mongodb-2.1.4.RELEASE.jar:na]
	at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onComplete(MonoPeekTerminal.java:311) ~[reactor-core-3.2.12.RELEASE.jar:3.2.12.RELEASE]
	at reactor.core.publisher.FluxOnAssembly$OnAssemblySubscriber.onComplete(FluxOnAssembly.java:355) ~[reactor-core-3.2.12.RELEASE.jar:3.2.12.RELEASE]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onComplete(FluxMapFuseable.java:336) ~[reactor-core-3.2.12.RELEASE.jar:3.2.12.RELEASE]
	at reactor.core.publisher.FluxOnAssembly$OnAssemblySubscriber.onComplete(FluxOnAssembly.java:355) ~[reactor-core-3.2.12.RELEASE.jar:3.2.12.RELEASE]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onComplete(MonoFlatMap.java:174) ~[reactor-core-3.2.12.RELEASE.jar:3.2.12.RELEASE]
	at reactor.core.publisher.FluxOnAssembly$OnAssemblySubscriber.onComplete(FluxOnAssembly.java:355) ~[reactor-core-3.2.12.RELEASE.jar:3.2.12.RELEASE]
	at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onComplete(Operators.java:1743) ~[reactor-core-3.2.12.RELEASE.jar:3.2.12.RELEASE]
	at reactor.core.publisher.FluxOnAssembly$OnAssemblySubscriber.onComplete(FluxOnAssembly.java:355) ~[reactor-core-3.2.12.RELEASE.jar:3.2.12.RELEASE]
	at reactor.core.publisher.FluxOnAssembly$OnAssemblySubscriber.onComplete(FluxOnAssembly.java:355) ~[reactor-core-3.2.12.RELEASE.jar:3.2.12.RELEASE]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onComplete(FluxMapFuseable.java:144) ~[reactor-core-3.2.12.RELEASE.jar:3.2.12.RELEASE]
	at reactor.core.publisher.FluxOnAssembly$OnAssemblySubscriber.onComplete(FluxOnAssembly.java:355) ~[reactor-core-3.2.12.RELEASE.jar:3.2.12.RELEASE]
	at reactor.core.publisher.MonoNext$NextSubscriber.onComplete(MonoNext.java:96) ~[reactor-core-3.2.12.RELEASE.jar:3.2.12.RELEASE]
	at com.mongodb.reactivestreams.client.internal.ObservableToPublisher$1.onComplete(ObservableToPublisher.java:78) ~[mongodb-driver-reactivestreams-1.9.2.jar:na]
	at com.mongodb.async.client.AbstractSubscription.onComplete(AbstractSubscription.java:145) ~[mongodb-driver-async-3.8.2.jar:na]
	at com.mongodb.async.client.AbstractSubscription.processResultsQueue(AbstractSubscription.java:211) ~[mongodb-driver-async-3.8.2.jar:na]
	at com.mongodb.async.client.AbstractSubscription.tryProcessResultsQueue(AbstractSubscription.java:159) ~[mongodb-driver-async-3.8.2.jar:na]
	at com.mongodb.async.client.SingleResultCallbackSubscription$1.onResult(SingleResultCallbackSubscription.java:48) ~[mongodb-driver-async-3.8.2.jar:na]
	at com.mongodb.async.client.FindIterableImpl$1$1.onResult(FindIterableImpl.java:211) ~[mongodb-driver-async-3.8.2.jar:na]
	at com.mongodb.async.client.FindIterableImpl$1$1.onResult(FindIterableImpl.java:204) ~[mongodb-driver-async-3.8.2.jar:na]
	at com.mongodb.operation.AsyncQueryBatchCursor.next(AsyncQueryBatchCursor.java:141) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.operation.AsyncQueryBatchCursor.next(AsyncQueryBatchCursor.java:100) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.async.client.FindIterableImpl$1.onResult(FindIterableImpl.java:204) ~[mongodb-driver-async-3.8.2.jar:na]
	at com.mongodb.async.client.FindIterableImpl$1.onResult(FindIterableImpl.java:198) ~[mongodb-driver-async-3.8.2.jar:na]
	at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:49) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.async.client.OperationExecutorImpl$1$1.onResult(OperationExecutorImpl.java:82) ~[mongodb-driver-async-3.8.2.jar:na]
	at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:49) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.operation.FindOperation$3.onResult(FindOperation.java:806) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.operation.OperationHelper$ReferenceCountedReleasingWrappedCallback.onResult(OperationHelper.java:364) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.operation.CommandOperationHelper$2.onResult(CommandOperationHelper.java:405) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:49) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.DefaultServer$DefaultServerProtocolExecutor$2.onResult(DefaultServer.java:227) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:49) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.CommandProtocolImpl$1.onResult(CommandProtocolImpl.java:85) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.DefaultConnectionPool$PooledConnection$1.onResult(DefaultConnectionPool.java:461) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.UsageTrackingInternalConnection$2.onResult(UsageTrackingInternalConnection.java:111) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:49) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.InternalStreamConnection$2$1.onResult(InternalStreamConnection.java:379) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.InternalStreamConnection$2$1.onResult(InternalStreamConnection.java:356) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.InternalStreamConnection$MessageHeaderCallback$MessageCallback.onResult(InternalStreamConnection.java:651) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.InternalStreamConnection$MessageHeaderCallback$MessageCallback.onResult(InternalStreamConnection.java:618) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.InternalStreamConnection$5.completed(InternalStreamConnection.java:494) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.InternalStreamConnection$5.completed(InternalStreamConnection.java:491) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.connection.netty.NettyStream.readAsync(NettyStream.java:236) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.InternalStreamConnection.readAsync(InternalStreamConnection.java:491) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.InternalStreamConnection.access$1000(InternalStreamConnection.java:74) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.InternalStreamConnection$MessageHeaderCallback.onResult(InternalStreamConnection.java:608) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.InternalStreamConnection$MessageHeaderCallback.onResult(InternalStreamConnection.java:593) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.InternalStreamConnection$5.completed(InternalStreamConnection.java:494) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.internal.connection.InternalStreamConnection$5.completed(InternalStreamConnection.java:491) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.connection.netty.NettyStream.readAsync(NettyStream.java:236) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.connection.netty.NettyStream.handleReadResponse(NettyStream.java:266) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.connection.netty.NettyStream.access$600(NettyStream.java:66) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.connection.netty.NettyStream$InboundBufferHandler.channelRead0(NettyStream.java:325) ~[mongodb-driver-core-3.8.2.jar:na]
	at com.mongodb.connection.netty.NettyStream$InboundBufferHandler.channelRead0(NettyStream.java:322) ~[mongodb-driver-core-3.8.2.jar:na]
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1421) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:697) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) ~[netty-transport-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) ~[netty-common-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.39.Final.jar:4.1.39.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.39.Final.jar:4.1.39.Final]
	at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_191]
	Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: 
Assembly trace from producer [reactor.core.publisher.MonoPeekTerminal] :
	reactor.core.publisher.Mono.doOnSuccess(Mono.java:2128)
	org.springframework.session.data.mongo.ReactiveMongoOperationsSessionRepository.deleteById(ReactiveMongoOperationsSessionRepository.java:142)
Error has been observed by the following operator(s):
	|_	Mono.doOnSuccess ⇢ org.springframework.session.data.mongo.ReactiveMongoOperationsSessionRepository.deleteById(ReactiveMongoOperationsSessionRepository.java:142)
	|_	Mono.then ⇢ org.springframework.session.data.mongo.ReactiveMongoOperationsSessionRepository.deleteById(ReactiveMongoOperationsSessionRepository.java:143)
	|_	Mono.then ⇢ org.springframework.session.data.mongo.ReactiveMongoOperationsSessionRepository.lambda$findById$3(ReactiveMongoOperationsSessionRepository.java:127)
	|_	Mono.defer ⇢ org.springframework.session.data.mongo.ReactiveMongoOperationsSessionRepository.findById(ReactiveMongoOperationsSessionRepository.java:127)
	|_	Mono.switchIfEmpty ⇢ org.springframework.session.data.mongo.ReactiveMongoOperationsSessionRepository.findById(ReactiveMongoOperationsSessionRepository.java:127)
	|_	Mono.doOnNext ⇢ org.springframework.session.web.server.session.SpringSessionWebSessionStore.retrieveSession(SpringSessionWebSessionStore.java:93)
	|_	Mono.map ⇢ org.springframework.session.web.server.session.SpringSessionWebSessionStore.retrieveSession(SpringSessionWebSessionStore.java:94)
	|_	Flux.concatMap ⇢ org.springframework.web.server.session.DefaultWebSessionManager.retrieveSession(DefaultWebSessionManager.java:88)
	|_	Flux.next ⇢ org.springframework.web.server.session.DefaultWebSessionManager.retrieveSession(DefaultWebSessionManager.java:89)
	|_	Mono.switchIfEmpty ⇢ org.springframework.web.server.session.DefaultWebSessionManager.lambda$getSession$2(DefaultWebSessionManager.java:82)
	|_	Mono.doOnNext ⇢ org.springframework.web.server.session.DefaultWebSessionManager.lambda$getSession$2(DefaultWebSessionManager.java:83)
	|_	Mono.defer ⇢ org.springframework.web.server.session.DefaultWebSessionManager.getSession(DefaultWebSessionManager.java:81)
	|_	Mono.cache ⇢ org.springframework.web.server.adapter.DefaultServerWebExchange.<init>(DefaultServerWebExchange.java:129)
	|_	Mono.map ⇢ org.springframework.security.web.server.savedrequest.WebSessionServerRequestCache.removeMatchingRequest(WebSessionServerRequestCache.java:87)
	|_	Mono.filter ⇢ org.springframework.security.web.server.savedrequest.WebSessionServerRequestCache.removeMatchingRequest(WebSessionServerRequestCache.java:88)
	|_	Mono.map ⇢ org.springframework.security.web.server.savedrequest.WebSessionServerRequestCache.removeMatchingRequest(WebSessionServerRequestCache.java:89)
	|_	Mono.map ⇢ org.springframework.security.web.server.savedrequest.ServerRequestCacheWebFilter.filter(ServerRequestCacheWebFilter.java:37)
	|_	Mono.defaultIfEmpty ⇢ org.springframework.security.web.server.savedrequest.ServerRequestCacheWebFilter.filter(ServerRequestCacheWebFilter.java:38)
	|_	Mono.flatMap ⇢ org.springframework.security.web.server.savedrequest.ServerRequestCacheWebFilter.filter(ServerRequestCacheWebFilter.java:39)
	|_	Mono.defer ⇢ org.springframework.web.server.handler.DefaultWebFilterChain.filter(DefaultWebFilterChain.java:119)
	|_	Mono.defer ⇢ org.springframework.web.server.handler.DefaultWebFilterChain.filter(DefaultWebFilterChain.java:119)
	|_	Mono.defer ⇢ org.springframework.web.server.handler.DefaultWebFilterChain.filter(DefaultWebFilterChain.java:119)
	|_	Mono.defer ⇢ org.springframework.web.server.handler.DefaultWebFilterChain.filter(DefaultWebFilterChain.java:119)
	|_	Mono.defer ⇢ org.springframework.web.server.handler.DefaultWebFilterChain.filter(DefaultWebFilterChain.java:119)
	|_	Mono.defer ⇢ org.springframework.web.server.handler.DefaultWebFilterChain.filter(DefaultWebFilterChain.java:119)
	|_	Mono.flatMap ⇢ org.springframework.security.web.server.WebFilterChainProxy.filter(WebFilterChainProxy.java:58)
	|_	Mono.defer ⇢ org.springframework.web.server.handler.DefaultWebFilterChain.filter(DefaultWebFilterChain.java:119)
	|_	Mono.defer ⇢ org.springframework.web.server.handler.DefaultWebFilterChain.filter(DefaultWebFilterChain.java:119)
	|_	Mono.doOnSuccess ⇢ org.springframework.boot.actuate.metrics.web.reactive.server.MetricsWebFilter.filter(MetricsWebFilter.java:83)
	|_	Mono.doOnError ⇢ org.springframework.boot.actuate.metrics.web.reactive.server.MetricsWebFilter.filter(MetricsWebFilter.java:83)
	|_	Mono.compose ⇢ org.springframework.boot.actuate.metrics.web.reactive.server.MetricsWebFilter.filter(MetricsWebFilter.java:75)
	|_	Mono.defer ⇢ org.springframework.web.server.handler.DefaultWebFilterChain.filter(DefaultWebFilterChain.java:119)

I tried upgrading the version of spring-session-data-mongodb to 2.2.1.RELEASE and got the following errors when running starting images microservice:

2019-10-23 16:14:19.343 ERROR 76851 --- [  restartedMain] o.s.boot.SpringApplication               : Application run failed

java.lang.IllegalStateException: Error processing condition on org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration.propertySourcesPlaceholderConfigurer
   at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:60) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:108) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForBeanMethod(ConfigurationClassBeanDefinitionReader.java:181) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:141) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:117) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:327) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:705) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.refresh(ReactiveWebServerApplicationContext.java:66) ~[spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at com.wait.mypic.MyPicImagesApplication.main(MyPicImagesApplication.java:14) [classes/:na]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_191]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_191]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_191]
   at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_191]
   at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.1.8.RELEASE.jar:2.1.8.RELEASE]
Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.session.data.mongo.config.annotation.web.reactive.ReactiveMongoWebSessionConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@764c12b6]
   at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:507) ~[spring-core-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:404) ~[spring-core-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:389) ~[spring-core-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:447) ~[spring-core-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_191]
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:738) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:679) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:647) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1518) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1023) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanTypeForNonAliasDefinition(BeanTypeRegistry.java:189) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanTypeForNonAliasDefinition(BeanTypeRegistry.java:156) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanType(BeanTypeRegistry.java:149) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.updateTypesIfNecessary(BeanTypeRegistry.java:137) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[na:1.8.0_191]
   at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.updateTypesIfNecessary(BeanTypeRegistry.java:132) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.getNamesForType(BeanTypeRegistry.java:96) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.autoconfigure.condition.OnBeanCondition.collectBeanNamesForType(OnBeanCondition.java:269) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:262) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:251) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchingBeans(OnBeanCondition.java:171) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:145) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ~[spring-boot-autoconfigure-2.1.8.RELEASE.jar:2.1.8.RELEASE]
   ... 22 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/session/IndexResolver
   at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_191]
   at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_191]
   at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_191]
   at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:489) ~[spring-core-5.1.9.RELEASE.jar:5.1.9.RELEASE]
   ... 44 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.session.IndexResolver
   at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_191]
   at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_191]
   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[na:1.8.0_191]
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_191]
   ... 48 common frames omitted

When I tried downgrading the version of spring-boot-starter-parent to 2.1.4, the UI provided a second login form when accessing images microservice endpoints

Am I doing something wrong?
Any help is appreciated @gregturn.

Chapter 7 & Chapter 8 with JDK 9 comment posting failure

Cleared/reset RabbitQM queues and data.
Zero errors even with debug logging turned on.
I can see the new data going out from the Image service, but the new data does not get saved into the database.
The pull/REST request for the comments from the Comments service works fine.
I see lines like this in both the Comments service and the Image service

INFO [ctor-http-nio-2] o.s.a.r.c.CachingConnectionFactory : Created new connection: SpringAMQP#2633e64d:0/SimpleConnection@57006d57 [delegate=amqp://[email protected]:5672/, localPort= 58919]

I suspect that this code does not work as expected with only JDK 9.
I'm choosing not to try this with JDK 8, but I do suspect that this code works fine with JDK 8.
Also running this code on Windows 10 Pro system with 16 GB of RAM

Proxy problems with mongodb

I am behind a proxy server and problems running the app regarding mongodb

2018-01-04 09:33:36.314  INFO 11524 --- [           main] o.s.b.a.mongo.embedded.EmbeddedMongo     : Download 3.2.2:Windows:B32 : starting...
2018-01-04 09:33:46.490 ERROR 11524 --- [           main] d.f.embed.process.runtime.Starter        : prepare executable

java.io.IOException: Could not open inputStream for https://downloads.mongodb.org/win32/mongodb-win32-i386-3.2.2.zip
	at de.flapdoodle.embed.process.store.Downloader.downloadInputStream(Downloader.java:131) ~[de.flapdoodle.embed.process-2.0.1.jar:na]
	at de.flapdoodle.embed.process.store.Downloader.download(Downloader.java:69) ~[de.flapdoodle.embed.process-2.0.1.jar:na]
	at de.flapdoodle.embed.process.store.ArtifactStore.checkDistribution(ArtifactStore.java:66) ~[de.flapdoodle.embed.process-2.0.1.jar:na]
	at de.flapdoodle.embed.process.store.ExtractedArtifactStore.checkDistribution(ExtractedArtifactStore.java:60) ~[de.flapdoodle.embed.process-2.0.1.jar:na]
	at de.flapdoodle.embed.process.runtime.Starter.prepare(Starter.java:56) [de.flapdoodle.embed.process-2.0.1.jar:na]
	at de.flapdoodle.embed.process.runtime.Starter.prepare(Starter.java:49) [de.flapdoodle.embed.process-2.0.1.jar:na]
	at org.springframework.boot.autoconfigure.mongo.embedded.EmbeddedMongoAutoConfiguration.embeddedMongoServer(EmbeddedMongoAutoConfiguration.java:117) [spring-boot-autoconfigure-2.0.0.M7.jar:2.0.0.M7]

Is there a workaround?

Chapter 7, Part 2 : hystrix.stream not found

The following URL gives me a 404
http://localhost:8080/hystrix.stream

I've enabled DEBUG and this shows up in the log

DEBUG 9152 --- [ctor-http-nio-2] .b.a.e.w.r.WebFluxEndpointHandlerMapping : Looking up handler method for path /hystrix.stream
DEBUG 9152 --- [ctor-http-nio-2] .b.a.e.w.r.WebFluxEndpointHandlerMapping : Did not find handler method for [/hystrix.stream]

I will continue to see what I can find out and try to fix this. However it does appear that many people have problems trying to enable/find hystrix.stream.

ImageService createImage() throws NoSuchFileException

learning-spring-boot-2nd-edition-code/2/part2/src/main/java/com/greglturnquist/learningspringboot/ImageService.java

Line 76 in e937067

return files

For some reason createImage() throws this exception:

java.nio.file.NoSuchFileException: upload-dir/sarah-crutchfield-549.jpg
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86) ~[na:1.8.0_152]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) ~[na:1.8.0_152]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107) ~[na:1.8.0_152]
at sun.nio.fs.UnixFileSystemProvider.newFileChannel(UnixFileSystemProvider.java:177) ~[na:1.8.0_152]
at java.nio.channels.FileChannel.open(FileChannel.java:287) ~[na:1.8.0_152]
at java.nio.channels.FileChannel.open(FileChannel.java:335) ~[na:1.8.0_152]
at org.springframework.http.codec.multipart.SynchronossPartHttpMessageReader$SynchronossFilePart.transferTo(SynchronossPartHttpMessageReader.java:303) ~[spring-web-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at com.greglturnquist.learningspringboot.learningspringboot.ImageService.lambda$createImage$2(ImageService.java:47) ~[main/:na]
at reactor.core.publisher.FluxFlatMap$FlatMapMain.onNext(FluxFlatMap.java:347) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:67) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.drainAsync(FluxFlattenIterable.java:391) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.drain(FluxFlattenIterable.java:633) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.onNext(FluxFlattenIterable.java:238) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxFilter$FilterSubscriber.onNext(FluxFilter.java:97) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxReplay$SizeBoundReplayBuffer.replayNormal(FluxReplay.java:808) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxReplay$SizeBoundReplayBuffer.replay(FluxReplay.java:892) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.ReplayProcessor$ReplayInner.request(ReplayProcessor.java:561) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxFilter$FilterSubscriber.request(FluxFilter.java:161) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxFlattenIterable$FlattenIterableSubscriber.onSubscribe(FluxFlattenIterable.java:225) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxFilter$FilterSubscriber.onSubscribe(FluxFilter.java:76) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.ReplayProcessor.subscribe(ReplayProcessor.java:315) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Flux.subscribe(Flux.java:6571) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoProcessor.subscribe(MonoProcessor.java:434) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFilter.subscribe(MonoFilter.java:46) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFlattenIterable.subscribe(MonoFlattenIterable.java:101) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxSwitchIfEmpty.subscribe(FluxSwitchIfEmpty.java:45) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxFlatMap.subscribe(FluxFlatMap.java:97) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoIgnoreElements.subscribe(MonoIgnoreElements.java:37) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Mono.subscribe(Mono.java:3008) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.drain(MonoIgnoreThen.java:167) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:56) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoSwitchIfEmpty.subscribe(MonoSwitchIfEmpty.java:44) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFlatMap.subscribe(MonoFlatMap.java:60) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoOnErrorResume.subscribe(MonoOnErrorResume.java:44) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1092) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:241) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:73) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onNext(FluxPeekFuseable.java:198) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onNext(FluxPeekFuseable.java:198) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1092) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoIgnoreThen$ThenAcceptInner.onNext(MonoIgnoreThen.java:290) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1092) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:144) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1092) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoZip$ZipCoordinator.signal(MonoZip.java:258) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoZip$ZipInner.onNext(MonoZip.java:329) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onNext(FluxPeekFuseable.java:198) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:1649) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.request(FluxPeekFuseable.java:138) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoZip$ZipInner.onSubscribe(MonoZip.java:318) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onSubscribe(FluxPeekFuseable.java:172) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoPeekFuseable.subscribe(MonoPeekFuseable.java:74) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Mono.subscribe(Mono.java:3008) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoZip$ZipCoordinator.subscribe(MonoZip.java:180) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:126) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFlatMap.subscribe(MonoFlatMap.java:60) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.drain(MonoIgnoreThen.java:148) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:56) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoPeekFuseable.subscribe(MonoPeekFuseable.java:74) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoPeekFuseable.subscribe(MonoPeekFuseable.java:74) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoOnErrorResume.subscribe(MonoOnErrorResume.java:44) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:67) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:76) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.innerNext(FluxConcatMap.java:271) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:803) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:115) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:1649) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:156) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:1463) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:1337) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:90) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoMapFuseable.subscribe(MonoMapFuseable.java:59) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Mono.subscribe(Mono.java:3008) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.drain(FluxConcatMap.java:418) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.onSubscribe(FluxConcatMap.java:210) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:128) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:61) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxConcatMap.subscribe(FluxConcatMap.java:121) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoNext.subscribe(MonoNext.java:40) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoSwitchIfEmpty.subscribe(MonoSwitchIfEmpty.java:44) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFlatMap.subscribe(MonoFlatMap.java:60) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFlatMap.subscribe(MonoFlatMap.java:60) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:108) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxReplay$SizeBoundReplayBuffer.replayNormal(FluxReplay.java:808) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxReplay$SizeBoundReplayBuffer.replay(FluxReplay.java:892) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.ReplayProcessor$ReplayInner.request(ReplayProcessor.java:561) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxMap$MapSubscriber.request(FluxMap.java:149) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFlatMap$FlatMapMain.onSubscribe(MonoFlatMap.java:103) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.FluxMap$MapSubscriber.onSubscribe(FluxMap.java:86) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.ReplayProcessor.subscribe(ReplayProcessor.java:315) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Flux.subscribe(Flux.java:6571) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoProcessor.subscribe(MonoProcessor.java:434) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoMap.subscribe(MonoMap.java:55) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoFlatMap.subscribe(MonoFlatMap.java:60) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoOnErrorResume.subscribe(MonoOnErrorResume.java:44) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoOnErrorResume.subscribe(MonoOnErrorResume.java:44) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoOnErrorResume.subscribe(MonoOnErrorResume.java:44) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Mono.subscribe(Mono.java:3008) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.drain(MonoIgnoreThen.java:167) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:56) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at reactor.core.publisher.Mono.subscribe(Mono.java:3008) ~[reactor-core-3.1.2.RELEASE.jar:3.1.2.RELEASE]
at org.springframework.http.server.reactive.ServletHttpHandlerAdapter.service(ServletHttpHandlerAdapter.java:169) ~[spring-web-5.0.2.RELEASE.jar:5.0.2.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.23.jar:8.5.23]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_152]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_152]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_152]

Any idea what that would happen?

Spring Boot Devtools Remote cause error at Pivotal Cloud Foundry

Here is my settings: Spring Boot: 2.3.0.RELEASE

secret

build.gradle

Intellij Idea IDE Run/Debug Configuration

I have app working at Pivotal Cloud Foundry. I have runing Remote App localy and after build through IDE or using

./gradlew clean assemble

I get Exception in thread "File Watcher" java.lang.IllegalStateException: Unexpected 404 NOT_FOUND response uploading class files

Files become corrupted after a run of the application

Images are getting corrupted after the initial run of my application. On the 1st run the 3 sample images display on the screen and if I click an individual image it will load on the full browser. Any new images that are uploaded do the same. If I then stop my application and run it again the images are corrupted. They don't displa. Instead I see this:

image

If I click on one of the broken image icons I get this:

image

I'm also unable to open the images in any other application such as Photoshop.

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