hibernate-reactive: Update of associated entity fails with UnsupportedOperationException using Quarkus

Hi, we are facing the problem that we’re running into an java.lang.UnsupportedOperationException when trying to update an associated entity. We’re using hibernate-reactive with Quarkus. I know there has been an issue #506 that should have fixed that problem but it doesn’t seem to work for us.

When calling the CampaignDao#update method without having an instance of Schedule associated with a Campaign the Schedule instance gets stored as expected. The Exception occurs after callling that method after a Schedule instance has been associated with a Campaign and persisted.

I’m creating this issue since I couldn’t find an example implementation in your examples folder. Maybe you could also include one on how to update associated entities.

Stacktrace

javax.persistence.PersistenceException: org.hibernate.HibernateException: javax.persistence.PersistenceException: org.hibernate.HibernateException: java.lang.UnsupportedOperationException
	at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:154) ~[hibernate-core-5.4.29.Final.jar:5.4.29.Final]
	at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181) ~[hibernate-core-5.4.29.Final.jar:5.4.29.Final]
	at org.hibernate.reactive.session.impl.ReactiveExceptionConverter.convert(ReactiveExceptionConverter.java:31) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.session.impl.ReactiveSessionImpl.lambda$doFlush$34(ReactiveSessionImpl.java:879) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:930) ~[?:?]
	at java.util.concurrent.CompletableFuture.uniHandleStage(CompletableFuture.java:946) ~[?:?]
	at java.util.concurrent.CompletableFuture.handle(CompletableFuture.java:2266) ~[?:?]
	at java.util.concurrent.CompletableFuture.handle(CompletableFuture.java:143) ~[?:?]
	at org.hibernate.reactive.session.impl.ReactiveSessionImpl.doFlush(ReactiveSessionImpl.java:874) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.session.impl.ReactiveSessionImpl.reactiveFlush(ReactiveSessionImpl.java:856) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.mutiny.impl.MutinySessionImpl.lambda$flush$0(MutinySessionImpl.java:57) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at io.smallrye.context.impl.wrappers.SlowContextualSupplier.get(SlowContextualSupplier.java:21) ~[smallrye-context-propagation-1.1.0.jar:?]
	at io.smallrye.mutiny.operators.uni.builders.UniCreateFromCompletionStage.subscribe(UniCreateFromCompletionStage.java:24) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.AbstractUni.subscribe(AbstractUni.java:36) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.uni.UniRunSubscribeOn.lambda$subscribe$0(UniRunSubscribeOn.java:27) ~[mutiny-0.14.0.jar:?]
	at org.hibernate.reactive.mutiny.impl.MutinySessionFactoryImpl.lambda$new$1(MutinySessionFactoryImpl.java:53) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at io.smallrye.mutiny.operators.uni.UniRunSubscribeOn.subscribe(UniRunSubscribeOn.java:25) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.AbstractUni.subscribe(AbstractUni.java:36) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.uni.UniOnItemTransform.subscribe(UniOnItemTransform.java:22) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.AbstractUni.subscribe(AbstractUni.java:36) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.uni.UniOnItemTransformToUni$UniOnItemTransformToUniProcessor.performInnerSubscription(UniOnItemTransformToUni.java:81) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.uni.UniOnItemTransformToUni$UniOnItemTransformToUniProcessor.onItem(UniOnItemTransformToUni.java:57) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.uni.UniOnItemTransformToUni$UniOnItemTransformToUniProcessor.onItem(UniOnItemTransformToUni.java:60) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.uni.builders.DefaultUniEmitter.complete(DefaultUniEmitter.java:36) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.groups.UniOnNull.lambda$failWith$1(UniOnNull.java:43) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.context.impl.wrappers.SlowContextualBiConsumer.accept(SlowContextualBiConsumer.java:21) ~[smallrye-context-propagation-1.1.0.jar:?]
	at io.smallrye.mutiny.groups.UniOnItem.lambda$transformToUni$5(UniOnItem.java:281) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.context.impl.wrappers.SlowContextualConsumer.accept(SlowContextualConsumer.java:21) ~[smallrye-context-propagation-1.1.0.jar:?]
	at io.smallrye.mutiny.operators.uni.builders.UniCreateWithEmitter.subscribe(UniCreateWithEmitter.java:22) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.AbstractUni.subscribe(AbstractUni.java:36) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.uni.UniOnItemTransformToUni$UniOnItemTransformToUniProcessor.performInnerSubscription(UniOnItemTransformToUni.java:81) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.uni.UniOnItemTransformToUni$UniOnItemTransformToUniProcessor.onItem(UniOnItemTransformToUni.java:57) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.uni.UniOperatorProcessor.onItem(UniOperatorProcessor.java:36) ~[mutiny-0.14.0.jar:?]
	at io.smallrye.mutiny.operators.uni.builders.UniCreateFromCompletionStage$CompletionStageUniSubscription.forwardResult(UniCreateFromCompletionStage.java:63) ~[mutiny-0.14.0.jar:?]
	at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859) ~[?:?]
	at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837) ~[?:?]
	at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) ~[?:?]
	at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073) ~[?:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.unroll(AsyncTrampoline.java:127) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.lambda$unroll$0(AsyncTrampoline.java:123) ~[asyncutil-0.1.0.jar:?]
	at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859) ~[?:?]
	at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837) ~[?:?]
	at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) ~[?:?]
	at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073) ~[?:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.unroll(AsyncTrampoline.java:127) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.lambda$unroll$0(AsyncTrampoline.java:123) ~[asyncutil-0.1.0.jar:?]
	at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859) ~[?:?]
	at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837) ~[?:?]
	at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) ~[?:?]
	at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073) ~[?:?]
	at org.hibernate.reactive.pool.impl.Handlers.lambda$toCompletionStage$0(Handlers.java:26) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at io.vertx.sqlclient.impl.SqlResultHandler.complete(SqlResultHandler.java:98) ~[vertx-sql-client-3.9.5.jar:3.9.5]
	at io.vertx.sqlclient.impl.SqlResultHandler.handle(SqlResultHandler.java:87) ~[vertx-sql-client-3.9.5.jar:3.9.5]
	at io.vertx.sqlclient.impl.SqlResultHandler.handle(SqlResultHandler.java:33) ~[vertx-sql-client-3.9.5.jar:3.9.5]
	at io.vertx.sqlclient.impl.SocketConnectionBase.handleMessage(SocketConnectionBase.java:241) ~[vertx-sql-client-3.9.5.jar:3.9.5]
	at io.vertx.sqlclient.impl.SocketConnectionBase.lambda$init$0(SocketConnectionBase.java:88) ~[vertx-sql-client-3.9.5.jar:3.9.5]
	at io.vertx.core.net.impl.NetSocketImpl.lambda$new$2(NetSocketImpl.java:101) ~[vertx-core-3.9.5.jar:3.9.5]
	at io.vertx.core.streams.impl.InboundBuffer.handleEvent(InboundBuffer.java:237) ~[vertx-core-3.9.5.jar:3.9.5]
	at io.vertx.core.streams.impl.InboundBuffer.write(InboundBuffer.java:127) ~[vertx-core-3.9.5.jar:3.9.5]
	at io.vertx.core.net.impl.NetSocketImpl.handleMessage(NetSocketImpl.java:357) ~[vertx-core-3.9.5.jar:3.9.5]
	at io.vertx.core.impl.ContextImpl.executeTask(ContextImpl.java:366) ~[vertx-core-3.9.5.jar:3.9.5]
	at io.vertx.core.impl.EventLoopContext.execute(EventLoopContext.java:43) ~[vertx-core-3.9.5.jar:3.9.5]
	at io.vertx.core.impl.ContextImpl.executeFromIO(ContextImpl.java:229) ~[vertx-core-3.9.5.jar:3.9.5]
	at io.vertx.core.net.impl.VertxHandler.channelRead(VertxHandler.java:163) ~[vertx-core-3.9.5.jar:3.9.5]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.49.Final.jar:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.49.Final.jar:?]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.49.Final.jar:?]
	at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436) ~[netty-transport-4.1.49.Final.jar:?]
	at io.vertx.pgclient.impl.codec.PgEncoder.lambda$write$0(PgEncoder.java:78) ~[vertx-pg-client-3.9.5.jar:3.9.5]
	at io.vertx.pgclient.impl.codec.PgCommandCodec.handleReadyForQuery(PgCommandCodec.java:138) ~[vertx-pg-client-3.9.5.jar:3.9.5]
	at io.vertx.pgclient.impl.codec.PgDecoder.decodeReadyForQuery(PgDecoder.java:226) ~[vertx-pg-client-3.9.5.jar:3.9.5]
	at io.vertx.pgclient.impl.codec.PgDecoder.channelRead(PgDecoder.java:86) ~[vertx-pg-client-3.9.5.jar:3.9.5]
	at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251) ~[netty-transport-4.1.49.Final.jar:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.49.Final.jar:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.49.Final.jar:?]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.49.Final.jar:?]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.49.Final.jar:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.49.Final.jar:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.49.Final.jar:?]
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.49.Final.jar:?]
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) ~[netty-transport-4.1.49.Final.jar:4.1.49.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:714) ~[netty-transport-4.1.49.Final.jar:4.1.49.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:650) ~[netty-transport-4.1.49.Final.jar:4.1.49.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:576) ~[netty-transport-4.1.49.Final.jar:4.1.49.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[netty-transport-4.1.49.Final.jar:4.1.49.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[netty-common-4.1.49.Final.jar:4.1.49.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.49.Final.jar:4.1.49.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.49.Final.jar:4.1.49.Final]
	at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: org.hibernate.HibernateException: javax.persistence.PersistenceException: org.hibernate.HibernateException: java.lang.UnsupportedOperationException
	... 87 more
Caused by: javax.persistence.PersistenceException: org.hibernate.HibernateException: java.lang.UnsupportedOperationException
	at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:154) ~[hibernate-core-5.4.29.Final.jar:5.4.29.Final]
	at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181) ~[hibernate-core-5.4.29.Final.jar:5.4.29.Final]
	at org.hibernate.reactive.session.impl.ReactiveExceptionConverter.convert(ReactiveExceptionConverter.java:31) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.internal.SessionImpl.fireDelete(SessionImpl.java:914) ~[hibernate-core-5.4.29.Final.jar:5.4.29.Final]
	at org.hibernate.internal.SessionImpl.removeOrphanBeforeUpdates(SessionImpl.java:880) ~[hibernate-core-5.4.29.Final.jar:5.4.29.Final]
	at org.hibernate.reactive.engine.impl.Cascade.cascadeLogicalOneToOneOrphanRemoval(Cascade.java:359) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.engine.impl.Cascade.cascadeProperty(Cascade.java:272) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.engine.impl.Cascade.cascadeInternal(Cascade.java:195) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.engine.impl.Cascade.lambda$cascade$2(Cascade.java:117) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:1106) ~[?:?]
	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2235) ~[?:?]
	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:143) ~[?:?]
	at org.hibernate.reactive.engine.impl.Cascade.cascade(Cascade.java:111) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.AbstractReactiveFlushingEventListener.cascadeOnFlush(AbstractReactiveFlushingEventListener.java:293) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.AbstractReactiveFlushingEventListener.lambda$prepareEntityFlushes$4(AbstractReactiveFlushingEventListener.java:137) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.util.impl.CompletionStages.lambda$loop$5(CompletionStages.java:169) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at com.ibm.asyncutil.iteration.AsyncTrampoline.lambda$asyncWhile$1(AsyncTrampoline.java:209) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.unroll(AsyncTrampoline.java:119) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.trampoline(AsyncTrampoline.java:101) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.access$200(AsyncTrampoline.java:84) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline.asyncWhile(AsyncTrampoline.java:192) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline.asyncWhile(AsyncTrampoline.java:209) ~[asyncutil-0.1.0.jar:?]
	at org.hibernate.reactive.util.impl.CompletionStages.loop(CompletionStages.java:169) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.util.impl.CompletionStages.loop(CompletionStages.java:199) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.AbstractReactiveFlushingEventListener.prepareEntityFlushes(AbstractReactiveFlushingEventListener.java:134) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.AbstractReactiveFlushingEventListener.flushEverythingToExecutions(AbstractReactiveFlushingEventListener.java:96) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.DefaultReactiveFlushEventListener.reactiveOnFlush(DefaultReactiveFlushEventListener.java:41) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.session.impl.ReactiveSessionImpl.lambda$fire$44(ReactiveSessionImpl.java:1066) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:1106) ~[?:?]
	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2235) ~[?:?]
	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:143) ~[?:?]
	at org.hibernate.reactive.session.impl.ReactiveSessionImpl.fire(ReactiveSessionImpl.java:1066) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.session.impl.ReactiveSessionImpl.doFlush(ReactiveSessionImpl.java:872) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	... 80 more
Caused by: org.hibernate.HibernateException: java.lang.UnsupportedOperationException
	at org.hibernate.reactive.session.impl.ReactiveExceptionConverter.convert(ReactiveExceptionConverter.java:31) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.internal.SessionImpl.fireDelete(SessionImpl.java:914) ~[hibernate-core-5.4.29.Final.jar:5.4.29.Final]
	at org.hibernate.internal.SessionImpl.removeOrphanBeforeUpdates(SessionImpl.java:880) ~[hibernate-core-5.4.29.Final.jar:5.4.29.Final]
	at org.hibernate.reactive.engine.impl.Cascade.cascadeLogicalOneToOneOrphanRemoval(Cascade.java:359) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.engine.impl.Cascade.cascadeProperty(Cascade.java:272) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.engine.impl.Cascade.cascadeInternal(Cascade.java:195) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.engine.impl.Cascade.lambda$cascade$2(Cascade.java:117) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:1106) ~[?:?]
	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2235) ~[?:?]
	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:143) ~[?:?]
	at org.hibernate.reactive.engine.impl.Cascade.cascade(Cascade.java:111) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.AbstractReactiveFlushingEventListener.cascadeOnFlush(AbstractReactiveFlushingEventListener.java:293) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.AbstractReactiveFlushingEventListener.lambda$prepareEntityFlushes$4(AbstractReactiveFlushingEventListener.java:137) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.util.impl.CompletionStages.lambda$loop$5(CompletionStages.java:169) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at com.ibm.asyncutil.iteration.AsyncTrampoline.lambda$asyncWhile$1(AsyncTrampoline.java:209) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.unroll(AsyncTrampoline.java:119) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.trampoline(AsyncTrampoline.java:101) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.access$200(AsyncTrampoline.java:84) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline.asyncWhile(AsyncTrampoline.java:192) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline.asyncWhile(AsyncTrampoline.java:209) ~[asyncutil-0.1.0.jar:?]
	at org.hibernate.reactive.util.impl.CompletionStages.loop(CompletionStages.java:169) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.util.impl.CompletionStages.loop(CompletionStages.java:199) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.AbstractReactiveFlushingEventListener.prepareEntityFlushes(AbstractReactiveFlushingEventListener.java:134) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.AbstractReactiveFlushingEventListener.flushEverythingToExecutions(AbstractReactiveFlushingEventListener.java:96) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.DefaultReactiveFlushEventListener.reactiveOnFlush(DefaultReactiveFlushEventListener.java:41) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.session.impl.ReactiveSessionImpl.lambda$fire$44(ReactiveSessionImpl.java:1066) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:1106) ~[?:?]
	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2235) ~[?:?]
	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:143) ~[?:?]
	at org.hibernate.reactive.session.impl.ReactiveSessionImpl.fire(ReactiveSessionImpl.java:1066) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.session.impl.ReactiveSessionImpl.doFlush(ReactiveSessionImpl.java:872) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	... 80 more
Caused by: java.lang.UnsupportedOperationException
	at org.hibernate.reactive.event.impl.DefaultReactiveDeleteEventListener.onDelete(DefaultReactiveDeleteEventListener.java:75) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:93) ~[hibernate-core-5.4.29.Final.jar:5.4.29.Final]
	at org.hibernate.internal.SessionImpl.fireDelete(SessionImpl.java:904) ~[hibernate-core-5.4.29.Final.jar:5.4.29.Final]
	at org.hibernate.internal.SessionImpl.removeOrphanBeforeUpdates(SessionImpl.java:880) ~[hibernate-core-5.4.29.Final.jar:5.4.29.Final]
	at org.hibernate.reactive.engine.impl.Cascade.cascadeLogicalOneToOneOrphanRemoval(Cascade.java:359) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.engine.impl.Cascade.cascadeProperty(Cascade.java:272) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.engine.impl.Cascade.cascadeInternal(Cascade.java:195) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.engine.impl.Cascade.lambda$cascade$2(Cascade.java:117) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:1106) ~[?:?]
	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2235) ~[?:?]
	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:143) ~[?:?]
	at org.hibernate.reactive.engine.impl.Cascade.cascade(Cascade.java:111) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.AbstractReactiveFlushingEventListener.cascadeOnFlush(AbstractReactiveFlushingEventListener.java:293) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.AbstractReactiveFlushingEventListener.lambda$prepareEntityFlushes$4(AbstractReactiveFlushingEventListener.java:137) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.util.impl.CompletionStages.lambda$loop$5(CompletionStages.java:169) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at com.ibm.asyncutil.iteration.AsyncTrampoline.lambda$asyncWhile$1(AsyncTrampoline.java:209) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.unroll(AsyncTrampoline.java:119) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.trampoline(AsyncTrampoline.java:101) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline$TrampolineInternal.access$200(AsyncTrampoline.java:84) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline.asyncWhile(AsyncTrampoline.java:192) ~[asyncutil-0.1.0.jar:?]
	at com.ibm.asyncutil.iteration.AsyncTrampoline.asyncWhile(AsyncTrampoline.java:209) ~[asyncutil-0.1.0.jar:?]
	at org.hibernate.reactive.util.impl.CompletionStages.loop(CompletionStages.java:169) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.util.impl.CompletionStages.loop(CompletionStages.java:199) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.AbstractReactiveFlushingEventListener.prepareEntityFlushes(AbstractReactiveFlushingEventListener.java:134) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.AbstractReactiveFlushingEventListener.flushEverythingToExecutions(AbstractReactiveFlushingEventListener.java:96) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.event.impl.DefaultReactiveFlushEventListener.reactiveOnFlush(DefaultReactiveFlushEventListener.java:41) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.session.impl.ReactiveSessionImpl.lambda$fire$44(ReactiveSessionImpl.java:1066) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:1106) ~[?:?]
	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2235) ~[?:?]
	at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:143) ~[?:?]
	at org.hibernate.reactive.session.impl.ReactiveSessionImpl.fire(ReactiveSessionImpl.java:1066) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	at org.hibernate.reactive.session.impl.ReactiveSessionImpl.doFlush(ReactiveSessionImpl.java:872) ~[hibernate-reactive-core-1.0.0.CR1.jar:1.0.0.CR1]
	... 80 more

Example

Method to update an entity

@ApplicationScoped
public class CampaignDao {

public Uni<Campaign> update(final Campaign update) {
     
        final Function<Campaign, Uni<? extends Campaign>> updateFunc = entity -> {
            entity.setSchedule(new ExecutionDate().setStart(OffsetDateTime.now()));
            return session.flush().onItem().transform(ignore -> entity);
        };

        return session.find(Campaign.class, update.getId())
                .onItem().ifNotNull().transformToUni(updateFunc);
    }
}

Campaign

@Entity
public class Campaign implements Serializable {

    @OneToOne(mappedBy = "campaign", cascade = CascadeType.ALL, fetch = FetchType.LAZY, orphanRemoval = true)
    @JsonIgnore
    private Schedule schedule;

// Getters and setters

}

Abstract class Schedule

@Entity
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name = "schedule_type", discriminatorType = DiscriminatorType.STRING)
public abstract class Schedule implements Serializable {
    @Id
    @Column(name = "id")
    private String id = UUID.randomUUID().toString();

    @OneToOne
    @JoinColumn(name = "campaign_id")
    @JsonIgnore
    private Campaign campaign;

// Getters and setters
}

ExecutionDate

@Entity
@DiscriminatorValue("EXECUTION_DATE")
public class ExecutionDate extends Schedule {

    @Column(name = "start_date")
    private OffsetDateTime start;

// Getters and setters
}

Environment Information

• Version: 1.0.0.CR1
• Quarkus version 1.13.0.Final
• PostgreSQL 12.5