Camunda JSON marshalling and @JsonIgnore

Camunda 7 Topics Discussion & Questions
19

Hi @nvanbelle,

This is the minimal jboss-deployment-structure.xml that works for me with your example:

Now, if you want to use resteasy-jackson2-provider nonetheless, I think one of these should work (haven’t tried them, though):

Variant 1

Declares a custom module deployment.jackson2-provider that mirrors jackson but does not re-export jackson. I think this provider would ignore any custom Jackson annotations in your classes since the deployment.jackson2-provider module still uses its own Jackson dependencies.

<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure>
    <deployment>
        <exclusions>
          <module name="org.jboss.resteasy.resteasy-jackson2-provider" />
        </exclusions>
        <dependencies>
          <module name="com.fasterxml.jackson.core.jackson-databind" slot="2.5.3" />
          <module name="deployment.jackson2-provider" />
        </dependencies>
    </deployment>
    <module name="deployment.jackson2-provider" >
      <dependencies>
        <module name="org.jboss.resteasy.resteasy-jackson2-provider" />
      </dependencies>
    </module>
</jboss-deployment-structure>

Variant 2

Declares a custom module deployment.jackson2-provider that excludes the Jackson classes from the
org.jboss.resteasy.resteasy-jackson2-provider dependency and imports the 2.5.3 version instead.
I’m a skeptical that this works, i.e. if the 2.5.3 Jackson classes become visible to the imported Resteasy Jackson classes. If this does not work,
an alternative approach would be creating a full copy of the org.jboss.resteasy.resteasy-jackson2-provider module in a custom slot, use a different
Jackson version there and import that in your application.

<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure>
    <deployment>
        <exclusions>
            <module name="org.jboss.resteasy.resteasy-jackson2-provider" />
        </exclusions>
        <dependencies>
          <module name="com.fasterxml.jackson.core.jackson-databind" slot="2.5.3" />
          <module name="deployment.jackson2-provider" />
        </dependencies>
    </deployment>
    <module name="deployment.jackson2-provider" >
      <dependencies>
        <module name="org.jboss.resteasy.resteasy-jackson2-provider">
          <imports>
            <exclude path="com/fasterxml/jackson/**" />
          </imports>
        </module>
        <module name="com.fasterxml.jackson.core.jackson-databind" slot="2.5.3" />
        <module name="com.fasterxml.jackson.core.jackson-annotations" slot="2.5.3"/>
        <module name="com.fasterxml.jackson.core.jackson-core" slot="2.5.3"/>
      </dependencies>
    </module>
</jboss-deployment-structure>

I hope that helps.

Cheers,
Thorben

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