如何解决此Hibernate Search错误的原因/影响是什么？
我们最近从Java 8升级到了11，这可能与我们开始看到的这个新错误有关，也可能无关。我们将5.10.6.Final的Hibernate-Search保持在b / c升级看来是一项艰巨的任务，但是Spring现在正在管理许多其他依赖项，包括：
Hibernate-Core 5.4.20.Final，Elasticsearch Client 6.6.2，Apache HTTP client 4.5.12和Apache HTTP core 4.4.13。
偶尔会看到：
java.lang.UnsupportedOperationException: Not implemented! Expected to produce content only over produceContent(),or writeTo(OutputStream) if blocking calls are acceptable for your use case.
at org.hibernate.search.elasticsearch.util.impl.GsonHttpEntity.getContent(GsonHttpEntity.java:164)
at co.elastic.apm.agent.es.restclient.ElasticsearchRestClientInstrumentationHelperImpl.createClientSpan(ElasticsearchRestClientInstrumentationHelperImpl.java:103)
at co.elastic.apm.agent.es.restclient.ElasticsearchRestClientInstrumentationHelperImpl.createClientSpan(ElasticsearchRestClientInstrumentationHelperImpl.java:48)
at org.elasticsearch.client.RestClient.performRequestAsync(RestClient.java:250)
at org.elasticsearch.client.RestClient.performRequestAsync(RestClient.java:445)
at org.hibernate.search.elasticsearch.client.impl.DefaultElasticsearchClient.send(DefaultElasticsearchClient.java:101)
at org.hibernate.search.elasticsearch.client.impl.DefaultElasticsearchClient.lambda$submit$0(DefaultElasticsearchClient.java:79)
at org.hibernate.search.util.impl.Futures.lambda$create$0(Futures.java:40)
at java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:995)
at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2137)
at org.hibernate.search.util.impl.Futures.create(Futures.java:40)
at org.hibernate.search.elasticsearch.client.impl.DefaultElasticsearchClient.submit(DefaultElasticsearchClient.java:79)
at org.hibernate.search.elasticsearch.work.impl.SimpleElasticsearchWork.lambda$execute$1(SimpleElasticsearchWork.java:59)
at java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:995)
at java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2137)
at org.hibernate.search.elasticsearch.work.impl.SimpleElasticsearchWork.execute(SimpleElasticsearchWork.java:59)
at org.hibernate.search.elasticsearch.processor.impl.ElasticsearchWorkProcessor.start(ElasticsearchWorkProcessor.java:227)
at org.hibernate.search.elasticsearch.processor.impl.ElasticsearchWorkProcessor.executeAsyncUnsafe(ElasticsearchWorkProcessor.java:143)
at org.hibernate.search.elasticsearch.processor.impl.ElasticsearchWorkProcessor.executeSyncUnsafe(ElasticsearchWorkProcessor.java:127)
at org.hibernate.search.elasticsearch.query.impl.IndexSearcher.search(IndexSearcher.java:93)
at org.hibernate.search.elasticsearch.query.impl.ElasticsearchHSQueryImpl.execute(ElasticsearchHSQueryImpl.java:264)
at org.hibernate.search.elasticsearch.query.impl.ElasticsearchHSQueryImpl.queryEntityInfos(ElasticsearchHSQueryImpl.java:226)
at org.hibernate.search.query.hibernate.impl.FullTextQueryImpl.doHibernateSearchList(FullTextQueryImpl.java:240)
at org.hibernate.search.query.hibernate.impl.FullTextQueryImpl.list(FullTextQueryImpl.java:225)
at org.hibernate.search.query.hibernate.impl.FullTextQueryImpl.getResultList(FullTextQueryImpl.java:124)
at com.bottomline.dm.core.service.AbstractDmHibernateSearchService.search(AbstractDmHibernateSearchService.java:64)
at com.bottomline.dm.core.service.matching.DefaultDedupingService.findProbableDupeIds(DefaultDedupingService.java:52)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
at com.sun.proxy.$Proxy256.findProbableDupeIds(Unknown Source)
at com.bottomline.dm.batch.job.segmentation.dedupe.DedupeSubStep.findProbableDupes(DedupeSubStep.java:328)
at com.bottomline.dm.batch.job.segmentation.dedupe.DedupeSubStep.doFindDupeSets(DedupeSubStep.java:180)
at com.bottomline.dm.batch.job.segmentation.dedupe.DedupeSubStep.execute(DedupeSubStep.java:110)
at com.bottomline.dm.batch.job.segmentation.dedupe.DedupeSubStep$$FastClassBySpringCGLIB$$ef3c77a2.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:367)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)
at com.bottomline.dm.batch.job.segmentation.dedupe.DedupeSubStep$$EnhancerBySpringCGLIB$$e46d85b9.execute(<generated>)
at com.bottomline.common.core.springframework.batch.step.SubStepsTasklet.executeSubStep(SubStepsTasklet.java:119)
at com.bottomline.common.core.springframework.batch.step.SubStepsTasklet.execute(SubStepsTasklet.java:92)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:136)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:124)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
at com.sun.proxy.$Proxy259.execute(Unknown Source)
at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:407)
at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:331)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140)
at org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:273)
at org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:82)
at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:375)
at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:215)
at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:145)
at org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:258)
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:208)
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148)
at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:68)
at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:68)
at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:169)
at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:144)
at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:137)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:774)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)
at org.springframework.batch.core.job.flow.FlowJob$$EnhancerBySpringCGLIB$$3c6ee530.doExecute(<generated>)
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:319)
at com.bottomline.common.core.springframework.batch.security.SecureJob.execute(SecureJob.java:65)
at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:147)
at co.elastic.apm.agent.impl.async.SpanInScopeRunnableWrapper.run(SpanInScopeRunnableWrapper.java:64)
at java.lang.Thread.run(Thread.java:748)
谁能解释这种异常的发生原因（看似随机）以及如何解决？
解决方法
永远不要调用该方法，实际上，在所有的Hibernate Search集成测试中都永远不要调用该方法。
两种可能的解释：
- 您的有效负载，配置或设置会导致Elasticsearch REST客户端或Apache HTTP客户端尝试以一种不寻常的方式序列化数据（调用此方法，而不是通常的方法）。
- 您使用的Elasticsearch REST客户端或Apache HTTP客户端版本与Hibernate Search期望的版本不同。作为参考，Hibernate Search
5.10.6.Final需要ES Rest客户端5.6.8和Apache HTTP客户端4.5.2。 here列出了所有版本。
我倾向于说你是第一种情况，这是co.elastic.apm.agent.es.restclient.ElasticsearchRestClientInstrumentationHelperImpl类的罪魁祸首，因为在正常的Hibernate Search设置中我看不到任何地方。您可能是自己添加的？
编辑：，因为它的价值，在下一版本的Hibernate Search 6.0中，GsonHttpEntity将实现getContent()，因为它还需要其他功能。不过，您可能知道这笔交易：Hibernate Search 6带来了新的酷功能，但处于Beta（尽管Beta处于后期），并公开了一个不同的API。 More info。
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