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ASF GitHub Bot commented on CAMEL-10385: ---------------------------------------- Github user dmitriyC300 closed the pull request at: https://github.com/apache/camel/pull/1209 > 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 -- This message was sent by Atlassian JIRA (v6.3.4#6332)