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https://issues.apache.org/jira/browse/CAMEL-24585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18110576#comment-18110576
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Claus Ibsen commented on CAMEL-24585:
-------------------------------------
You surely need the jsonpath JARs on the classpath when you do this kind of
stuff
> The catalog validateLanguageExpression returns an invoke error when using
> jsonpath in a simple expression
> ---------------------------------------------------------------------------------------------------------
>
> Key: CAMEL-24585
> URL: https://issues.apache.org/jira/browse/CAMEL-24585
> Project: Camel
> Issue Type: Bug
> Components: camel-catalog
> Affects Versions: 4.22.0
> Reporter: Raymond
> Priority: Minor
>
> I ran the following validation statement:
> {code:java}
> LanguageValidationResult result =
> catalog.validateLanguageExpression(
> ClassLoader.getSystemClassLoader(),
> "simple",
> "${jsonpath($.foo)}"
> ); {code}
> In 4.10.9 this passes, but in 4.22.0 I get:
> {code:java}
> Cannot invoke \"org.apache.camel.TypeConverter.convertTo(java.lang.Class,
> Object)\" because the return value of
> \"org.apache.camel.CamelContext.getTypeConverter()\" is null {code}
> If I use a regular simple expression like:
> {code:java}
> ${header.foo}
> ${bodyAs(String)} {code}
> There are no issues
>
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