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https://issues.apache.org/jira/browse/CAMEL-10385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen resolved CAMEL-10385.
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Resolution: Fixed
Assignee: Claus Ibsen
Fix Version/s: 2.19.0
2.18.1
Thanks for the PR
> simple ognl expression issue w/ list & spring boot
> --------------------------------------------------
>
> Key: CAMEL-10385
> URL: https://issues.apache.org/jira/browse/CAMEL-10385
> Project: Camel
> Issue Type: Bug
> Components: camel-spring-boot
> Affects Versions: 2.17.0, 2.17.3, 2.18.0
> Reporter: Dmitriy Frolov
> Assignee: Claus Ibsen
> Priority: Minor
> Fix For: 2.18.1, 2.19.0
>
>
> conflict running simple expression w/ list under spring boot.
> SpringTypeConverter is registered as a fallback converter which gets picked
> up during ognl while attempting to convert list -> map causing an exception
> instead of a null response that is expected. It is happening under 2.17 &
> 2.18.
> sample expression: ${body.list[0].field}
> 10:20:32.499 [main] TRACE o.a.c.i.c.DefaultTypeConverter | Converting
> java.util.ArrayList -> java.util.Map
> 10:20:32.500 [main] TRACE o.a.c.i.c.DefaultTypeConverter | Using converter:
> org.apache.camel.impl.converter.ArrayTypeConverter@79d7035 to convert [class
> java.util.ArrayList=>interface java.util.Map]
> Caused by: org.apache.camel.TypeConversionException: Error during type
> conversion from type: java.util.ArrayList to the required type: java.util.Map
> with due Failed to convert from type [java.util.ArrayList<?>] to type
> [java.util.Map<?, ?>]
> at
> org.apache.camel.impl.converter.BaseTypeConverterRegistry.createTypeConversionException(BaseTypeConverterRegistry.java:629)
>
> at
> org.apache.camel.impl.converter.BaseTypeConverterRegistry.convertTo(BaseTypeConverterRegistry.java:150)
>
> at
> org.apache.camel.impl.converter.BaseTypeConverterRegistry.convertTo(BaseTypeConverterRegistry.java:121)
>
> at
> org.apache.camel.language.bean.BeanExpression$OgnlInvokeProcessor.lookupResult(BeanExpression.java:358)
>
> at
> org.apache.camel.language.bean.BeanExpression$OgnlInvokeProcessor.process(BeanExpression.java:334)
>
> at
> org.apache.camel.language.bean.BeanExpression.evaluate(BeanExpression.java:114)
>
> ... 55 common frames omitted
> Caused by: org.springframework.core.convert.ConversionFailedException: Failed
> to convert from type [java.util.ArrayList<?>] to type [java.util.Map<?, ?>]
> at
> org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:42)
>
> 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:46)
>
> at
> org.apache.camel.impl.converter.BaseTypeConverterRegistry.doConvertTo(BaseTypeConverterRegistry.java:346)
>
> at
> org.apache.camel.impl.converter.BaseTypeConverterRegistry.convertTo(BaseTypeConverterRegistry.java:133)
>
> ... 59 common frames omitted
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