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Posted to issues@camel.apache.org by "Jostein Gogstad (JIRA)" <ji...@apache.org> on 2016/03/08 15:12:40 UTC

[jira] [Updated] (CAMEL-9680) Stream caching is broken under Spring Boot

     [ https://issues.apache.org/jira/browse/CAMEL-9680?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jostein Gogstad updated CAMEL-9680:
-----------------------------------
    Description: 
As documented in the [camel-spring-boot documentation|https://camel.apache.org/spring-boot.html], camel-spring-boot will delegate type conversion to Spring by default (see {{org.apache.camel.spring.boot.TypeConversionConfiguration}}). Whenever the body of a route changes to a List, Spring believes it can convert it and fails. See the supplied test.

The runs correctly if the {{SpringTypeConverter}} is removed.

{code:java|title=StreamCachingTest.java}
package com.example.bugs;

import org.apache.camel.CamelContext;
import org.apache.camel.EndpointInject;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.spring.boot.SpringTypeConverter;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.junit.Test;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.support.DefaultConversionService;

import java.io.File;
import java.io.FileInputStream;
import java.util.List;

import static java.util.Arrays.asList;

public class StreamCachingTest extends CamelTestSupport {

    public static final String URI_END_OF_ROUTE = "mock:end_of_route";

    @EndpointInject(uri = URI_END_OF_ROUTE)
    private MockEndpoint endOfRoute;

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                context.getTypeConverterRegistry().addFallbackTypeConverter(springTypeConverter(context, new ConversionService[]{new DefaultConversionService()}), true);

                from("direct:foo")
                    .streamCaching()
                    .bean(MyBean.class)
                    .to(URI_END_OF_ROUTE);
            }
        };
    }

    @Test
    public void stream_caching_with_spring() throws Exception {
        endOfRoute.expectedMessageCount(1);

        template.sendBody("direct:foo", new FileInputStream(new File("src/main/resources/banner.txt")));

        endOfRoute.assertIsSatisfied();

    }

    public static class MyBean {
        public List<Integer> someNumbers() {
            return asList(1, 2, 3);
        }
    }

    /**
     * Copied from org.apache.camel.spring.boot.TypeConversionConfiguration (they are package protected)
     **/
    @Bean
    SpringTypeConverter springTypeConverter(CamelContext camelContext, ConversionService[] conversionServices) {
        SpringTypeConverter springTypeConverter = new SpringTypeConverter(asList(conversionServices));
        camelContext.getTypeConverterRegistry().addFallbackTypeConverter(springTypeConverter, true);
        return springTypeConverter;
    }

    @ConditionalOnMissingBean
    @Bean
    ConversionService defaultCamelConversionService(ApplicationContext applicationContext) {
        DefaultConversionService service = new DefaultConversionService();
        for (Converter converter : applicationContext.getBeansOfType(Converter.class).values()) {
            service.addConverter(converter);
        }
        return service;
    }
}
{code}

Result:
{code:none}
org.apache.camel.CamelExecutionException: Exception occurred during execution on the exchange: Exchange[ID-CAW811-53239-1457446127171-0-2][Message: 1,2,3]
	at org.apache.camel.util.ObjectHelper.wrapCamelExecutionException(ObjectHelper.java:1658)
	at org.apache.camel.util.ExchangeHelper.extractResultBody(ExchangeHelper.java:646)
	at org.apache.camel.impl.DefaultProducerTemplate.extractResultBody(DefaultProducerTemplate.java:471)
	at org.apache.camel.impl.DefaultProducerTemplate.extractResultBody(DefaultProducerTemplate.java:467)
	at org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:139)
	at org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:144)
	at no.avinor.agressointegration.StreamCachingTest.stream_caching_with_spring(StreamCachingTest.java:50)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
Caused by: org.apache.camel.TypeConversionException: Error during type conversion from type: java.lang.String to the required type: org.apache.camel.StreamCache with value 1,2,3 due Failed to convert from type [java.util.Arrays$ArrayList<?>] to type [org.apache.camel.StreamCache] for value '[1, 2, 3]'; nested exception is org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.util.Arrays$ArrayList<?>] to type [org.apache.camel.StreamCache]
	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.createTypeConversionException(BaseTypeConverterRegistry.java:610)
	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.convertTo(BaseTypeConverterRegistry.java:137)
	at org.apache.camel.impl.MessageSupport.getBody(MessageSupport.java:72)
	at org.apache.camel.impl.MessageSupport.getBody(MessageSupport.java:47)
	at org.apache.camel.impl.DefaultStreamCachingStrategy.cache(DefaultStreamCachingStrategy.java:189)
	at org.apache.camel.processor.CamelInternalProcessor$StreamCachingAdvice.before(CamelInternalProcessor.java:765)
	at org.apache.camel.processor.CamelInternalProcessor$StreamCachingAdvice.before(CamelInternalProcessor.java:744)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:138)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190)
	at org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:62)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
	at org.apache.camel.processor.UnitOfWorkProducer.process(UnitOfWorkProducer.java:68)
	at org.apache.camel.impl.ProducerCache$2.doInProducer(ProducerCache.java:412)
	at org.apache.camel.impl.ProducerCache$2.doInProducer(ProducerCache.java:380)
	at org.apache.camel.impl.ProducerCache.doInProducer(ProducerCache.java:270)
	at org.apache.camel.impl.ProducerCache.sendExchange(ProducerCache.java:380)
	at org.apache.camel.impl.ProducerCache.send(ProducerCache.java:221)
	at org.apache.camel.impl.DefaultProducerTemplate.send(DefaultProducerTemplate.java:124)
	at org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:137)
	... 34 more
Caused by: org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.util.Arrays$ArrayList<?>] to type [org.apache.camel.StreamCache] for value '[1, 2, 3]'; nested exception is org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.util.Arrays$ArrayList<?>] to type [org.apache.camel.StreamCache]
	at org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:41)
	at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:192)
	at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:176)
	at org.apache.camel.spring.boot.SpringTypeConverter.convertTo(SpringTypeConverter.java:40)
	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.doConvertTo(BaseTypeConverterRegistry.java:333)
	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.convertTo(BaseTypeConverterRegistry.java:120)
	... 54 more
Caused by: org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.util.Arrays$ArrayList<?>] to type [org.apache.camel.StreamCache]
	at org.springframework.core.convert.support.GenericConversionService.handleConverterNotFound(GenericConversionService.java:313)
	at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:195)
	at org.springframework.core.convert.support.CollectionToObjectConverter.convert(CollectionToObjectConverter.java:64)
	at org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:35)
	... 59 more
{code}

  was:
As documented in the [camel-spring-boot documentation|https://camel.apache.org/spring-boot.html], camel-spring-boot will delegate type conversion to Spring by default (see {{org.apache.camel.spring.boot.TypeConversionConfiguration}}). Whenever the body of a route changes to a List, Spring believes it can convert it and fails. See the supplied test.

The runs correctly if the {{SpringTypeConverter}} is removed.

{code:java|title=StreamCachingTest.java}
package com.example.bugs;

import org.apache.camel.CamelContext;
import org.apache.camel.EndpointInject;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.spring.boot.SpringTypeConverter;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.junit.Test;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.support.DefaultConversionService;

import java.io.File;
import java.io.FileInputStream;
import java.util.List;

import static java.util.Arrays.asList;

public class StreamCachingTest extends CamelTestSupport {

    public static final String URI_END_OF_ROUTE = "mock:end_of_route";

    @EndpointInject(uri = URI_END_OF_ROUTE)
    private MockEndpoint endOfRoute;

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                context.getTypeConverterRegistry().addFallbackTypeConverter(springTypeConverter(context, new ConversionService[]{new DefaultConversionService()}), true);

                from("direct:foo")
                    .streamCaching()
                    .bean(MyBean.class)
                    .to(URI_END_OF_ROUTE);
            }
        };
    }

    @Test
    public void stream_caching_with_spring() throws Exception {
        endOfRoute.expectedMessageCount(1);

        template.sendBody("direct:foo", new FileInputStream(new File("src/main/resources/banner.txt")));

        endOfRoute.assertIsSatisfied();

    }

    public static class MyBean {
        public List<Integer> someNumbers() {
            return asList(1, 2, 3);
        }
    }

    /**
     * Copied from org.apache.camel.spring.boot.TypeConversionConfiguration (they are package protected)
     **/
    @Bean
    SpringTypeConverter springTypeConverter(CamelContext camelContext, ConversionService[] conversionServices) {
        SpringTypeConverter springTypeConverter = new SpringTypeConverter(asList(conversionServices));
        camelContext.getTypeConverterRegistry().addFallbackTypeConverter(springTypeConverter, true);
        return springTypeConverter;
    }

    @ConditionalOnMissingBean
    @Bean
    ConversionService defaultCamelConversionService(ApplicationContext applicationContext) {
        DefaultConversionService service = new DefaultConversionService();
        for (Converter converter : applicationContext.getBeansOfType(Converter.class).values()) {
            service.addConverter(converter);
        }
        return service;
    }
}
{code}


> Stream caching is broken under Spring Boot
> ------------------------------------------
>
>                 Key: CAMEL-9680
>                 URL: https://issues.apache.org/jira/browse/CAMEL-9680
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-spring-boot
>    Affects Versions: 2.16.2
>            Reporter: Jostein Gogstad
>
> As documented in the [camel-spring-boot documentation|https://camel.apache.org/spring-boot.html], camel-spring-boot will delegate type conversion to Spring by default (see {{org.apache.camel.spring.boot.TypeConversionConfiguration}}). Whenever the body of a route changes to a List, Spring believes it can convert it and fails. See the supplied test.
> The runs correctly if the {{SpringTypeConverter}} is removed.
> {code:java|title=StreamCachingTest.java}
> package com.example.bugs;
> import org.apache.camel.CamelContext;
> import org.apache.camel.EndpointInject;
> import org.apache.camel.builder.RouteBuilder;
> import org.apache.camel.component.mock.MockEndpoint;
> import org.apache.camel.spring.boot.SpringTypeConverter;
> import org.apache.camel.test.junit4.CamelTestSupport;
> import org.junit.Test;
> import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
> import org.springframework.context.ApplicationContext;
> import org.springframework.context.annotation.Bean;
> import org.springframework.core.convert.ConversionService;
> import org.springframework.core.convert.converter.Converter;
> import org.springframework.core.convert.support.DefaultConversionService;
> import java.io.File;
> import java.io.FileInputStream;
> import java.util.List;
> import static java.util.Arrays.asList;
> public class StreamCachingTest extends CamelTestSupport {
>     public static final String URI_END_OF_ROUTE = "mock:end_of_route";
>     @EndpointInject(uri = URI_END_OF_ROUTE)
>     private MockEndpoint endOfRoute;
>     @Override
>     protected RouteBuilder createRouteBuilder() throws Exception {
>         return new RouteBuilder() {
>             @Override
>             public void configure() throws Exception {
>                 context.getTypeConverterRegistry().addFallbackTypeConverter(springTypeConverter(context, new ConversionService[]{new DefaultConversionService()}), true);
>                 from("direct:foo")
>                     .streamCaching()
>                     .bean(MyBean.class)
>                     .to(URI_END_OF_ROUTE);
>             }
>         };
>     }
>     @Test
>     public void stream_caching_with_spring() throws Exception {
>         endOfRoute.expectedMessageCount(1);
>         template.sendBody("direct:foo", new FileInputStream(new File("src/main/resources/banner.txt")));
>         endOfRoute.assertIsSatisfied();
>     }
>     public static class MyBean {
>         public List<Integer> someNumbers() {
>             return asList(1, 2, 3);
>         }
>     }
>     /**
>      * Copied from org.apache.camel.spring.boot.TypeConversionConfiguration (they are package protected)
>      **/
>     @Bean
>     SpringTypeConverter springTypeConverter(CamelContext camelContext, ConversionService[] conversionServices) {
>         SpringTypeConverter springTypeConverter = new SpringTypeConverter(asList(conversionServices));
>         camelContext.getTypeConverterRegistry().addFallbackTypeConverter(springTypeConverter, true);
>         return springTypeConverter;
>     }
>     @ConditionalOnMissingBean
>     @Bean
>     ConversionService defaultCamelConversionService(ApplicationContext applicationContext) {
>         DefaultConversionService service = new DefaultConversionService();
>         for (Converter converter : applicationContext.getBeansOfType(Converter.class).values()) {
>             service.addConverter(converter);
>         }
>         return service;
>     }
> }
> {code}
> Result:
> {code:none}
> org.apache.camel.CamelExecutionException: Exception occurred during execution on the exchange: Exchange[ID-CAW811-53239-1457446127171-0-2][Message: 1,2,3]
> 	at org.apache.camel.util.ObjectHelper.wrapCamelExecutionException(ObjectHelper.java:1658)
> 	at org.apache.camel.util.ExchangeHelper.extractResultBody(ExchangeHelper.java:646)
> 	at org.apache.camel.impl.DefaultProducerTemplate.extractResultBody(DefaultProducerTemplate.java:471)
> 	at org.apache.camel.impl.DefaultProducerTemplate.extractResultBody(DefaultProducerTemplate.java:467)
> 	at org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:139)
> 	at org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:144)
> 	at no.avinor.agressointegration.StreamCachingTest.stream_caching_with_spring(StreamCachingTest.java:50)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> 	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> 	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> 	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
> 	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
> 	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> 	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> 	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> 	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
> 	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78)
> 	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212)
> 	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> 	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
> Caused by: org.apache.camel.TypeConversionException: Error during type conversion from type: java.lang.String to the required type: org.apache.camel.StreamCache with value 1,2,3 due Failed to convert from type [java.util.Arrays$ArrayList<?>] to type [org.apache.camel.StreamCache] for value '[1, 2, 3]'; nested exception is org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.util.Arrays$ArrayList<?>] to type [org.apache.camel.StreamCache]
> 	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.createTypeConversionException(BaseTypeConverterRegistry.java:610)
> 	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.convertTo(BaseTypeConverterRegistry.java:137)
> 	at org.apache.camel.impl.MessageSupport.getBody(MessageSupport.java:72)
> 	at org.apache.camel.impl.MessageSupport.getBody(MessageSupport.java:47)
> 	at org.apache.camel.impl.DefaultStreamCachingStrategy.cache(DefaultStreamCachingStrategy.java:189)
> 	at org.apache.camel.processor.CamelInternalProcessor$StreamCachingAdvice.before(CamelInternalProcessor.java:765)
> 	at org.apache.camel.processor.CamelInternalProcessor$StreamCachingAdvice.before(CamelInternalProcessor.java:744)
> 	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:138)
> 	at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)
> 	at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
> 	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190)
> 	at org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:62)
> 	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190)
> 	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
> 	at org.apache.camel.processor.UnitOfWorkProducer.process(UnitOfWorkProducer.java:68)
> 	at org.apache.camel.impl.ProducerCache$2.doInProducer(ProducerCache.java:412)
> 	at org.apache.camel.impl.ProducerCache$2.doInProducer(ProducerCache.java:380)
> 	at org.apache.camel.impl.ProducerCache.doInProducer(ProducerCache.java:270)
> 	at org.apache.camel.impl.ProducerCache.sendExchange(ProducerCache.java:380)
> 	at org.apache.camel.impl.ProducerCache.send(ProducerCache.java:221)
> 	at org.apache.camel.impl.DefaultProducerTemplate.send(DefaultProducerTemplate.java:124)
> 	at org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:137)
> 	... 34 more
> Caused by: org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.util.Arrays$ArrayList<?>] to type [org.apache.camel.StreamCache] for value '[1, 2, 3]'; nested exception is org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.util.Arrays$ArrayList<?>] to type [org.apache.camel.StreamCache]
> 	at org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:41)
> 	at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:192)
> 	at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:176)
> 	at org.apache.camel.spring.boot.SpringTypeConverter.convertTo(SpringTypeConverter.java:40)
> 	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.doConvertTo(BaseTypeConverterRegistry.java:333)
> 	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.convertTo(BaseTypeConverterRegistry.java:120)
> 	... 54 more
> Caused by: org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.util.Arrays$ArrayList<?>] to type [org.apache.camel.StreamCache]
> 	at org.springframework.core.convert.support.GenericConversionService.handleConverterNotFound(GenericConversionService.java:313)
> 	at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:195)
> 	at org.springframework.core.convert.support.CollectionToObjectConverter.convert(CollectionToObjectConverter.java:64)
> 	at org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:35)
> 	... 59 more
> {code}



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