[ https://issues.apache.org/jira/browse/CAMEL-12510?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Claus Ibsen resolved CAMEL-12510. --------------------------------- Resolution: Not A Bug Assignee: Claus Ibsen > Camel servlet component throw "IOException: Stream closed" during route > processing for HTTP get request with custom processor > ----------------------------------------------------------------------------------------------------------------------------- > > Key: CAMEL-12510 > URL: https://issues.apache.org/jira/browse/CAMEL-12510 > Project: Camel > Issue Type: Bug > Components: camel-servlet > Affects Versions: 2.21.0 > Reporter: Thomas Papke > Assignee: Claus Ibsen > Priority: Major > > If i just build a simple Route like this to proxy a incoming Get request to > external host: > {code:java} > @Override > public void configure() throws Exception { > from(format("servlet://%s?httpMethodRestrict=GET&servletName=%s", > RETRIEVE_PATH, servletName)) > .process((exchange) -> { > exchange.getOut().setHeader(Exchange.HTTP_URI, > "https://some.external.system/"); > }).to("https4:something"); > } > {code} > The following exception is thrown: > {code:java} > org.apache.camel.RuntimeCamelException: java.io.IOException: Stream closed > at > org.apache.camel.http.common.HttpMessage.createBody(HttpMessage.java:80) > at org.apache.camel.impl.MessageSupport.getBody(MessageSupport.java:54) > at > org.apache.camel.processor.DefaultExchangeFormatter.getBodyTypeAsString(DefaultExchangeFormatter.java:468) > at > org.apache.camel.processor.DefaultExchangeFormatter.format(DefaultExchangeFormatter.java:126) > at > org.apache.camel.processor.CamelLogProcessor.process(CamelLogProcessor.java:88) > at > org.apache.camel.component.log.LogProducer.process(LogProducer.java:40) > at > org.apache.camel.processor.SendProcessor.process(SendProcessor.java:148) > 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.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:97) > at > org.apache.camel.http.common.CamelServlet.doService(CamelServlet.java:208) > at > org.apache.camel.http.common.CamelServlet.service(CamelServlet.java:78) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > at > org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > at > org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:110) > at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > at > org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) > at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > at > org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108) > at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > at > org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) > at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > at > org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) > at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > at > org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106) > at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) > at > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) > at > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) > at > org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) > at > org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) > at > org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) > at > org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) > at > org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) > at > org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) > at java.lang.Thread.run(Thread.java:748) > Caused by: java.io.IOException: Stream closed > at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:346) > at > org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:152) > at org.apache.camel.util.IOHelper.copy(IOHelper.java:202) > at org.apache.camel.util.IOHelper.copy(IOHelper.java:174) > at org.apache.camel.util.IOHelper.copyAndCloseInput(IOHelper.java:234) > at org.apache.camel.util.IOHelper.copyAndCloseInput(IOHelper.java:230) > at > org.apache.camel.http.common.HttpHelper.readResponseBodyFromInputStream(HttpHelper.java:245) > at > org.apache.camel.http.common.HttpHelper.readRequestBodyFromServletRequest(HttpHelper.java:196) > at > org.apache.camel.http.common.DefaultHttpBinding.parseBody(DefaultHttpBinding.java:577) > at > org.apache.camel.http.common.HttpMessage.createBody(HttpMessage.java:78) > ... 60 more > {code} > *Workaround / Additional notice:* > * If I rewrite my example route to work without a processor, > {{.setHeader(Exchange.HTTP_URI, constant("https://some.external.system/"))}} > everything works, so it seems to be an issue with the processor handling. > Nevertheless, processor logic should also work. > * even if i use a simple > {{to("log:com.mycompany.order?showAll=true&multiline=true")}} the issue > occurs as well. So it has nothing to with the camel-http4 producer. > * Adding "mapHttpMessageBody=false" to the servlet definition seems to be a > proper workaround for my example, since I only proxy GET requests which never > have a body in the request. > * I already debug into the camel code, but i am not 100% sure if this is the > correct place to fix: > {{org.apache.camel.http.common.DefaultHttpBinding.parseBody(HttpMessage)}} - > here it might make sense to skip body parsing for certain HTTP methods (e.g. > GET) > * I found two quiet similar issues on the mailing list: > ** > [http://camel.465427.n5.nabble.com/Stream-closed-exception-when-using-camel-as-http-proxy-with-tomcat-servlet-tt5809653.html#none] > ** > [http://camel.465427.n5.nabble.com/IOException-Stream-closed-when-forwarding-HTTP-request-td5796802.html] -- This message was sent by Atlassian JIRA (v7.6.3#76005)