[jira] [Created] (CAMEL-14853) camel-jacksonxml classpath conflict

["Maarten Tutak (Jira)" <ji...@apache.org>]

Maarten Tutak created CAMEL-14853:
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             Summary: camel-jacksonxml classpath conflict
                 Key: CAMEL-14853
                 URL: https://issues.apache.org/jira/browse/CAMEL-14853
             Project: Camel
          Issue Type: Bug
          Components: camel-jacksonxml
    Affects Versions: 3.1.0
            Reporter: Maarten Tutak


Hi. I'm using Spring Boot (2.2.4.RELEASE) with Camel (3.1.0) and I've come across the following error. I should note that i'm having a hard time reproducing this issue.
{noformat}
***************************
APPLICATION FAILED TO START
***************************

Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

    com.ctc.wstx.evt.CompactStartElement.getAttributes(CompactStartElement.java:94)

The following method did not exist:

    'org.codehaus.stax2.ri.EmptyIterator org.codehaus.stax2.ri.EmptyIterator.getInstance()'

The method's class, org.codehaus.stax2.ri.EmptyIterator, is available from the following locations:

    jar:file:/app/libs/stax2-api-4.2.jar!/org/codehaus/stax2/ri/EmptyIterator.class

It was loaded from the following location:

    file:/app/libs/stax2-api-4.2.jar


Action:

Correct the classpath of your application so that it contains a single, compatible version of org.codehaus.stax2.ri.EmptyIterator
{noformat}
I was wondering if this is related to the fact that [camel-jacksonxml|https://github.com/apache/camel/blob/camel-3.1.0/components/camel-jacksonxml/pom.xml] introduces both _*org.codehaus.woodstox:woodstox-core-asl:jar:4.4.1*_ and _*com.fasterxml.woodstox:woodstox-core:jar:6.0.3*_ on the classpath , as seen below.
{noformat}
INFO] +- org.apache.camel.springboot:camel-jacksonxml-starter:jar:3.1.0:compile
[INFO] |  \- org.apache.camel:camel-jacksonxml:jar:3.1.0:compile
[INFO] |     +- org.apache.camel:camel-support:jar:3.1.0:compile
[INFO] |     +- com.fasterxml.jackson.dataformat:jackson-dataformat-xml:jar:2.10.2:compile
[INFO] |     |  +- org.codehaus.woodstox:stax2-api:jar:4.2:compile
[INFO] |     |  \- com.fasterxml.woodstox:woodstox-core:jar:6.0.3:compile
[INFO] |     +- com.fasterxml.jackson.module:jackson-module-jaxb-annotations:jar:2.10.2:compile
[INFO] |     \- org.codehaus.woodstox:woodstox-core-asl:jar:4.4.1:compile
{noformat}
It's unclear to me why camel-jacksonxml has a dependency on woodstox-core-asl while woodstox-core is already available, albeit transitively.



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