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No converter found capable of converting from type [io.r2dbc.h2.codecs.ValueLobClob] to type [java.lang.String]

See original GitHub issue

Bug Report

Versions

Driver: 8.4.0.RELEASE
Database: 1.4.200
Java: 11.0.11
OS: Windows 10

Other dependencies, perhaps useful

org.springframework.boot : spring-boot-starter-data-r2dbc : 2.5.2
org.springframework . data:spring-data-r2dbc : 1.3.2
org.springframework : spring-r2dbc : 5.3.8
io.r2dbc : r2dbc-spi : 0.8.5.RELEASE
io.r2dbc : r2dbc-h2 : 0.8.4.RELEASE

Current Behavior

While trying to de-serialize my entity with a CLOB datatype column I’m getting this Exception:

Stack trace

org.springframework.data.mapping.MappingException: Could not read property private java.lang.String com.frager.oreport.entityserver.model.Course.description from column description!
	at org.springframework.data.r2dbc.convert.MappingR2dbcConverter.readFrom(MappingR2dbcConverter.java:185) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
	Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: 
Error has been observed at the following site(s):
	|_ checkpoint ⇢ Handler com.frager.oreport.entityserver.web.rest.CourseResource#getCourse(Long, CourseQueryType) [DispatcherHandler]
	|_ checkpoint ⇢ org.springframework.web.filter.reactive.ServerWebExchangeContextFilter [DefaultWebFilterChain]
	|_ checkpoint ⇢ com.frager.oreport.entityserver.web.filter.ReactiveRequestContextFilter$$EnhancerBySpringCGLIB$$6789d111 [DefaultWebFilterChain]
	|_ checkpoint ⇢ org.springframework.boot.actuate.metrics.web.reactive.server.MetricsWebFilter [DefaultWebFilterChain]
	|_ checkpoint ⇢ HTTP GET "/courses/8?queryType=ID" [ExceptionHandlingWebHandler]
Stack trace:
		at org.springframework.data.r2dbc.convert.MappingR2dbcConverter.readFrom(MappingR2dbcConverter.java:185) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
		at org.springframework.data.r2dbc.convert.MappingR2dbcConverter.read(MappingR2dbcConverter.java:136) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
		at org.springframework.data.r2dbc.convert.MappingR2dbcConverter.read(MappingR2dbcConverter.java:119) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
		at org.springframework.data.r2dbc.convert.EntityRowMapper.apply(EntityRowMapper.java:46) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
		at org.springframework.data.r2dbc.convert.EntityRowMapper.apply(EntityRowMapper.java:29) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
		at io.r2dbc.h2.H2Result.lambda$map$0(H2Result.java:67) ~[r2dbc-h2-0.8.4.RELEASE.jar:0.8.4.RELEASE]
		at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:106) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:127) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:270) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:228) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:169) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2193) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onSubscribe(FluxOnErrorResume.java:74) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:164) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:86) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Flux.subscribe(Flux.java:8235) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxFlatMap$FlatMapMain.onNext(FluxFlatMap.java:426) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:120) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:127) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:270) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:228) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:169) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMap$MapSubscriber.request(FluxMap.java:162) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxFlatMap$FlatMapMain.onSubscribe(FluxFlatMap.java:371) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMap$MapSubscriber.onSubscribe(FluxMap.java:92) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:164) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:86) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Flux.subscribe(Flux.java:8235) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxFlatMap.trySubscribeScalarMap(FluxFlatMap.java:200) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxFlatMap.subscribeOrReturn(FluxFlatMap.java:93) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Flux.subscribe(Flux.java:8221) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxUsingWhen$ResourceSubscriber.onNext(FluxUsingWhen.java:202) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:120) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:127) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1815) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoSupplier.subscribe(MonoSupplier.java:61) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Mono.subscribe(Mono.java:4150) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:103) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoFlatMap$FlatMapMain.onError(MonoFlatMap.java:172) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMap$MapSubscriber.onError(FluxMap.java:132) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators.error(Operators.java:197) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoError.subscribe(MonoError.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Mono.subscribe(Mono.java:4150) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxUsingWhen.subscribe(FluxUsingWhen.java:103) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoUsingWhen.subscribe(MonoUsingWhen.java:87) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:157) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1815) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxPeek$PeekSubscriber.onNext(FluxPeek.java:199) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxPeek$PeekSubscriber.onNext(FluxPeek.java:199) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.complete(MonoIgnoreThen.java:284) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onNext(MonoIgnoreThen.java:187) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1815) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:151) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1815) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoZip$ZipCoordinator.signal(MonoZip.java:251) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoZip$ZipInner.onNext(MonoZip.java:336) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:100) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:73) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2397) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2193) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2067) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxFlatMap.trySubscribeScalarMap(FluxFlatMap.java:192) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoFlatMap.subscribeOrReturn(MonoFlatMap.java:53) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Mono.subscribe(Mono.java:4135) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:128) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:236) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:203) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoFlatMap$FlatMapMain.onComplete(MonoFlatMap.java:181) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators.complete(Operators.java:136) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:120) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Mono.subscribe(Mono.java:4150) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:255) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:157) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:73) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.innerNext(FluxConcatMap.java:281) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:860) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:127) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2397) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.request(MonoPeekTerminal.java:139) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:169) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2193) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2067) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onSubscribe(MonoPeekTerminal.java:152) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Mono.subscribe(Mono.java:4150) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.drain(FluxConcatMap.java:448) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.onSubscribe(FluxConcatMap.java:218) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:164) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:86) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.Mono.subscribe(Mono.java:4150) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:255) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
		at reactor.netty.http.server.HttpServer$HttpServerHandle.onStateChange(HttpServer.java:915) ~[reactor-netty-http-1.0.8.jar:1.0.8]
		at reactor.netty.ReactorNetty$CompositeConnectionObserver.onStateChange(ReactorNetty.java:654) ~[reactor-netty-core-1.0.8.jar:1.0.8]
		at reactor.netty.transport.ServerTransport$ChildObserver.onStateChange(ServerTransport.java:478) ~[reactor-netty-core-1.0.8.jar:1.0.8]
		at reactor.netty.http.server.HttpServerOperations.onInboundNext(HttpServerOperations.java:533) ~[reactor-netty-http-1.0.8.jar:1.0.8]
		at reactor.netty.channel.ChannelOperationsHandler.channelRead(ChannelOperationsHandler.java:94) ~[reactor-netty-core-1.0.8.jar:1.0.8]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at reactor.netty.http.server.HttpTrafficHandler.channelRead(HttpTrafficHandler.java:209) ~[reactor-netty-http-1.0.8.jar:1.0.8]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) ~[netty-codec-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) ~[netty-codec-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[netty-common-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.65.Final.jar:4.1.65.Final]
		at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.65.Final.jar:4.1.65.Final]
		at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_144]
Caused by: org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [io.r2dbc.h2.codecs.ValueLobClob] to type [java.lang.String]
	at org.springframework.core.convert.support.GenericConversionService.handleConverterNotFound(GenericConversionService.java:322) ~[spring-core-5.3.8.jar:5.3.8]
	at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:195) ~[spring-core-5.3.8.jar:5.3.8]
	at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:175) ~[spring-core-5.3.8.jar:5.3.8]
	at org.springframework.data.r2dbc.convert.MappingR2dbcConverter.getPotentiallyConvertedSimpleRead(MappingR2dbcConverter.java:277) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
	at org.springframework.data.r2dbc.convert.MappingR2dbcConverter.readValue(MappingR2dbcConverter.java:201) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
	at org.springframework.data.r2dbc.convert.MappingR2dbcConverter.readFrom(MappingR2dbcConverter.java:182) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
	at org.springframework.data.r2dbc.convert.MappingR2dbcConverter.read(MappingR2dbcConverter.java:136) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
	at org.springframework.data.r2dbc.convert.MappingR2dbcConverter.read(MappingR2dbcConverter.java:119) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
	at org.springframework.data.r2dbc.convert.EntityRowMapper.apply(EntityRowMapper.java:46) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
	at org.springframework.data.r2dbc.convert.EntityRowMapper.apply(EntityRowMapper.java:29) ~[spring-data-r2dbc-1.3.2.jar:1.3.2]
	at io.r2dbc.h2.H2Result.lambda$map$0(H2Result.java:67) ~[r2dbc-h2-0.8.4.RELEASE.jar:0.8.4.RELEASE]
	at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:106) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:127) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:270) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:228) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:169) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2193) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onSubscribe(FluxOnErrorResume.java:74) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:164) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:86) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Flux.subscribe(Flux.java:8235) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxFlatMap$FlatMapMain.onNext(FluxFlatMap.java:426) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxOnAssembly$OnAssemblySubscriber.onNext(FluxOnAssembly.java:387) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:120) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:127) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:270) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:228) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:169) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMap$MapSubscriber.request(FluxMap.java:162) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxOnAssembly$OnAssemblySubscriber.request(FluxOnAssembly.java:497) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxFlatMap$FlatMapMain.onSubscribe(FluxFlatMap.java:371) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxOnAssembly$OnAssemblySubscriber.onSubscribe(FluxOnAssembly.java:481) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMap$MapSubscriber.onSubscribe(FluxMap.java:92) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:164) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:86) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Flux.subscribe(Flux.java:8235) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxFlatMap.trySubscribeScalarMap(FluxFlatMap.java:200) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxFlatMap.subscribeOrReturn(FluxFlatMap.java:93) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Flux.subscribe(Flux.java:8221) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxUsingWhen$ResourceSubscriber.onNext(FluxUsingWhen.java:202) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:120) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:127) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1815) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoSupplier.subscribe(MonoSupplier.java:61) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Mono.subscribe(Mono.java:4150) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:103) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onError(MonoFlatMap.java:172) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMap$MapSubscriber.onError(FluxMap.java:132) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators.error(Operators.java:197) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoError.subscribe(MonoError.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoDeferContextual.subscribe(MonoDeferContextual.java:55) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Mono.subscribe(Mono.java:4150) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxUsingWhen.subscribe(FluxUsingWhen.java:103) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoUsingWhen.subscribe(MonoUsingWhen.java:87) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:157) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1815) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:249) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxPeek$PeekSubscriber.onNext(FluxPeek.java:199) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxPeek$PeekSubscriber.onNext(FluxPeek.java:199) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.complete(MonoIgnoreThen.java:284) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onNext(MonoIgnoreThen.java:187) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1815) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:151) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1815) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoZip$ZipCoordinator.signal(MonoZip.java:251) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoZip$ZipInner.onNext(MonoZip.java:336) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:100) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:73) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2397) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2193) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2067) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxFlatMap.trySubscribeScalarMap(FluxFlatMap.java:192) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoFlatMap.subscribeOrReturn(MonoFlatMap.java:53) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Mono.subscribe(Mono.java:4135) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:128) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:236) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onComplete(MonoIgnoreThen.java:203) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onComplete(MonoFlatMap.java:181) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators.complete(Operators.java:136) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoZip.subscribe(MonoZip.java:120) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Mono.subscribe(Mono.java:4150) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:255) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:157) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:73) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.innerNext(FluxConcatMap.java:281) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:860) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:127) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2397) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.request(MonoPeekTerminal.java:139) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:169) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2193) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.onSubscribe(Operators.java:2067) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onSubscribe(MonoPeekTerminal.java:152) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:54) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Mono.subscribe(Mono.java:4150) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.drain(FluxConcatMap.java:448) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.onSubscribe(FluxConcatMap.java:218) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:164) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:86) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.Mono.subscribe(Mono.java:4150) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:255) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.7.jar:3.4.7]
	at reactor.netty.http.server.HttpServer$HttpServerHandle.onStateChange(HttpServer.java:915) ~[reactor-netty-http-1.0.8.jar:1.0.8]
	at reactor.netty.ReactorNetty$CompositeConnectionObserver.onStateChange(ReactorNetty.java:654) ~[reactor-netty-core-1.0.8.jar:1.0.8]
	at reactor.netty.transport.ServerTransport$ChildObserver.onStateChange(ServerTransport.java:478) ~[reactor-netty-core-1.0.8.jar:1.0.8]
	at reactor.netty.http.server.HttpServerOperations.onInboundNext(HttpServerOperations.java:533) ~[reactor-netty-http-1.0.8.jar:1.0.8]
	at reactor.netty.channel.ChannelOperationsHandler.channelRead(ChannelOperationsHandler.java:94) ~[reactor-netty-core-1.0.8.jar:1.0.8]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at reactor.netty.http.server.HttpTrafficHandler.channelRead(HttpTrafficHandler.java:209) ~[reactor-netty-http-1.0.8.jar:1.0.8]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) ~[netty-codec-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) ~[netty-codec-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[netty-transport-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[netty-common-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.65.Final.jar:4.1.65.Final]
	at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_144]

Table schema

Input Code

CREATE SEQUENCE IF NOT EXISTS "PUBLIC"."SYSTEM_SEQUENCE_MASTER_SEQUENCE" START WITH 1 BELONGS_TO_TABLE;
CREATE CACHED TABLE IF NOT EXISTS  "PUBLIC"."COURSE"(
    "ID" BIGINT DEFAULT NEXT VALUE FOR "PUBLIC"."SYSTEM_SEQUENCE_MASTER_SEQUENCE" NOT NULL NULL_TO_DEFAULT SEQUENCE "PUBLIC"."SYSTEM_SEQUENCE_MASTER_SEQUENCE",
    "TITLE" VARCHAR(255),
    "DESCRIPTION" CLOB
);
INSERT INTO "PUBLIC"."COURSE" VALUES
(8, 'string', 'string'),
(9, 'string', 'string');

Steps to reproduce

Input Code

(If a repo-link is truly needed please mention it and I will open a specific repo for this case)

public class Course {

	@Id
	private Long id;
	private String description;
	private String title;

	public Course() {
		super();
	}

	public Long getId() { return id; }
	public void setId(Long id) { this.id = id; }

	public String getDescription() { return description; }
	public void setDescription(String description) { this.description = description; }

	public String getTitle() { return title; }
	public void setTitle(String title) { this.title = title; }
}


@Repository
public interface CourseRepository extends R2dbcRepository<Course, Long> { 
	// no extra methods
}

@RestController
@RequestMapping("/courses")
public class CourseResource {
	@Autowired CourseRepository courseRepository ;

	@GetMapping(produces = MediaType.APPLICATION_NDJSON_VALUE)
	public Flux<Course> getAllCourseAsStream() {
		return courseRepository.findAll();
	}
}

Then just http get http://localhost:8080/courses

Expected behavior/code

Be able to de-serialize my CLOB column into a String.

Possible Solution

Additional context

While searching I found

spring-projects/spring-data-r2dbc issue#196 Cannot convert Clob to String in MappingR2dbcConverter
- We're trying to address the issue in R2DBC SPI directly, see r2dbc/r2dbc-spi#130. Once that ticket is solved and drivers have caught up, the issue here will be solved.
- [CLOSED] Nov 1, 2019
r2dbc/r2dbc-spi issue#130 Change default mapping of BLOB and CLOB column types to ByteBuffer and String
- [CLOSED] Nov 6, 2019 - Milestone -> 0.8.0.RELEASE
r2dbc/r2dbc-h2 issue#115 Cannot read binary data (blob) into byte[] field. No converter.
- The actual issue with conversion is that a streaming type was handed to the mapping layer of Spring Data R2DBC and the mapping layer was unable to consume it. That's addressed with #119 as LOB types now default to ByteBuffer/String instead of Blob/Clob.
- [CLOSED] Nov 18, 2019
r2dbc/r2dbc-h2 issue#119 Upgrade to latest SPI changes
- [CLOSED] Nov 6, 2019 - Milestone -> 0.8.0.RELEASE

There must be something I’m missing.

Greets, Fradantim

Issue Analytics

State:
Created 2 years ago
Comments:15 (5 by maintainers)

Top GitHub Comments

1reaction

Fradantimcommented, Dec 18, 2021

@Fradantim It’s possible to change the blocking line into this to get around the issue: final List asImperative = (List) ((Flux) source.stream()).collectList().toFuture().get();

Basically instead of blocking we’re converting it into a CompletableFuture and getting the result from it.

@Raveen87 Thank you so much for your contribution, it works like a charm.

@Autowired
private BasicRelationalConverter basicRelationalConverter;

@PostConstruct
void addClobConverter() {
	((ConfigurableConversionService) basicRelationalConverter.getConversionService()).addConverter(new ClobConverter());
}

class ClobConverter implements Converter<Clob, String> {
	public String convert(Clob source) {
		List asImperative = null;
		try {
			asImperative = (List) ((Flux) source.stream()).collectList().toFuture().get();
		} catch (InterruptedException | ExecutionException e) {
			throw new RuntimeException("Error while converting CLOB to String.", e);
		}
		return Objects.isNull(asImperative) ? "" : String.join("", asImperative);
	}
}

1reaction

kSzajocommented, Dec 18, 2021

As this issue occurs only in tests, I found a solution/workaround

in test:

@Autowired
private BasicRelationalConverter basicRelationalConverter;

@PostConstruct
void addClobConverter() {
    ((ConfigurableConversionService) basicRelationalConverter.getConversionService()).addConverter(new ClobConverter));
}

Converter:
public class ClobConverter implements Converter<Clob, String> {
    public String convert(Clob source) {
        final List<CharSequence> asImperative = ((Flux<CharSequence>) source.stream()).collectList().block();
        return Objects.isNull(asImperative) ? "" : String.join("", asImperative);
    }
}

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