syndesis: Returning an empty collection from API Provider causes an error

This is a…


[ ] Feature request
[ ] Regression (a behavior that used to work and stopped working in a new release)
[x] Bug report  
[ ] Documentation issue or request

Description

When the return value of an API Provider operation is an empty colleciton, a 500 error is returned instead, along with the following stack trace:

io.atlasmap.api.AtlasException: Errors: [It's not yet supported to have a collection field as a part of multiple source fields in a same mapping: docId='-LbMg_X2En_TXeIobD32', path='/<>/completed'], 
	at org.apache.camel.component.atlasmap.AtlasEndpoint.onExchange(AtlasEndpoint.java:266)
	at org.apache.camel.impl.ProcessorEndpoint$1.process(ProcessorEndpoint.java:71)
	at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
	at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:148)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:110)
	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:138)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:101)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:110)
	at io.syndesis.integration.runtime.logging.ActivityTrackingInterceptStrategy$EventProcessor.process(ActivityTrackingInterceptStrategy.java:79)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:110)
	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:138)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:101)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:138)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:101)
	at org.apache.camel.component.direct.DirectBlockingProducer.process(DirectBlockingProducer.java:53)
	at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:148)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:110)
	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:97)
	at org.apache.camel.http.common.CamelServlet.doService(CamelServlet.java:214)
	at org.apache.camel.http.common.CamelServlet.service(CamelServlet.java:80)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
	at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:111)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:103)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
	at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
	at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:64)
	at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
	at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132)
	at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
	at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
	at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
	at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
	at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
	at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
	at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
	at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
	at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
	at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
	at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
	at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
	at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
	at io.undertow.server.Connectors.executeRootHandler(Connectors.java:336)
	at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

About this issue

Original URL
State: closed
Created 5 years ago
Comments: 23 (18 by maintainers)

Commits related to this issue

#5096 Prevent stream already closed errors by replacing HttpMessage with DefaultMessage on Http based connectors — committed to christophd/syndesis by christophd 5 years ago
#5096 Prevent stream already closed errors by replacing HttpMessage with DefaultMessage on Http based connectors — committed to christophd/syndesis by christophd 5 years ago
#5096 Prevent stream already closed errors by replacing HttpMessage with DefaultMessage on Http based connectors — committed to syndesisio/syndesis by christophd 5 years ago
Merge pull request #5111 from syndesisio/backport-5106-to-1.6.x [Backport 1.6.x] fix: #5096 Prevent stream already closed errors on Http based connectors — committed to syndesisio/syndesis by zregvart 5 years ago

Most upvoted comments

@gaughan @heiko-braun @igarashitm FYI I have a partly fix for that on side of Syndesis in pipe. That partly fix prevents Syndesis from getting the error UT010029: Stream is closed.

With that in place the integration would succeed even without the fix in Atlasmap but the result would be an empty response instead of the correct empty array [] returned.

We get the correct empty array response only with Tomo’s fix on Atlasmap side in place. But maybe this last missing part is something we could also consider as non blocking.

christophd on Apr 2, 2019