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Update a Wildfly / JBoss EAP 7 Installation from 7.19 to 7.20

The following steps describe how to update the Camunda artifacts on a Wildfly/JBoss EAP 7 in a shared process engine scenario. Throughout the procedure, refer to the update guide.

Reading this Guide

This guide uses a number of variables to denote common path names and constants:

  • $WILDFLY_HOME points to the JBoss EAP/WildFly application server main directory.
  • $WILDFLY_DISTRIBUTION represents the downloaded pre-packaged Camunda 7 distribution for WildFly, e.g. camunda-bpm-wildfly-$PLATFORM_VERSION.zip or camunda-bpm-wildfly-$PLATFORM_VERSION.tar.gz.
  • $PLATFORM_VERSION denotes the version of Camunda 7 you want to install or already have installed, e.g. 7.0.0.

If not already done, download the Camunda 7.20 WildFly distribution or Camunda 7.20 WildFly ≤26 Modules.

The update procedure takes the following steps:

  1. Update the Camunda 7 modules.
  2. Update optional Camunda 7 modules.
  3. Update Camunda web applications.

Whenever the instructions are to replace a module, delete the previous version of the module first to avoid orphan jars.

1. Update the Camunda 7 modules

Replace the following modules from the folder $WILDFLY_HOME/modules/ with the new versions from the folder $WILDFLY_DISTRIBUTION/modules/:

  • org/camunda/bpm/camunda-engine
  • org/camunda/bpm/wildfly/camunda-wildfly-subsystem
  • org/camunda/bpm/model/camunda-bpmn-model
  • org/camunda/bpm/model/camunda-cmmn-model
  • org/camunda/bpm/model/camunda-dmn-model
  • org/camunda/bpm/model/camunda-xml-model
  • org/camunda/bpm/dmn/camunda-engine-dmn
  • org/camunda/bpm/dmn/camunda-engine-feel-api
  • org/camunda/bpm/dmn/camunda-engine-feel-juel
  • org/camunda/bpm/dmn/camunda-engine-feel-scala
  • org/camunda/bpm/juel/camunda-juel
  • org/camunda/template-engines/camunda-template-engines-freemarker
  • org/camunda/commons/camunda-commons-logging
  • org/camunda/commons/camunda-commons-typed-values
  • org/camunda/commons/camunda-commons-utils
  • org/camunda/connect/camunda-connect-core
  • org/camunda/connect/camunda-connect-http-client
  • org/camunda/connect/camunda-connect-soap-http-client
  • org/camunda/feel/feel-engine
  • org/apache/httpcomponents/httpclient
  • org/apache/httpcomponents/httpcore
  • org/freemarker/freemarker
  • org/mybatis/mybatis
  • commons-codec/commons-codec
  • org/graalvm/js/js
  • org/graalvm/js/js-scriptengine
  • org/graalvm/regex/regex
  • org/graalvm/sdk/graal-sdk
  • org/graalvm/truffle/truffle-api
  • com/ibm/icu/icu4j

2. Update optional Camunda 7 modules

In addition to the core modules, there may be optional artifacts in $WILDFLY_HOME/modules/ for LDAP integration, Camunda Connect, Camunda Spin, and Groovy scripting. If you use any of these extensions, the following update steps apply:

LDAP integration

Replace the following module from the folder $WILDFLY_HOME/modules/ with its new version from the folder $WILDFLY_DISTRIBUTION/modules/, if present:

  • org/camunda/bpm/identity/camunda-identity-ldap

Camunda Connect plugin

Replace the following modules from the folder $WILDFLY_HOME/modules/ with the new versions from the folder $WILDFLY_DISTRIBUTION/modules/, if present:

  • org/camunda/bpm/camunda-engine-plugin-connect

Camunda Spin

Replace the following modules from the folder $WILDFLY_HOME/modules/ with the new versions from the folder $WILDFLY_DISTRIBUTION/modules/, if present:

  • org/camunda/spin/camunda-spin-core
  • org/camunda/spin/camunda-spin-dataformat-json-jackson
  • org/camunda/spin/camunda-spin-dataformat-xml-dom-jakarta
    • Heads-up: add this module only for WildFly 27+.
  • org/camunda/spin/camunda-spin-dataformat-xml-dom
    • Heads-up: add this module only for WildFly ≤26 / JBoss EAP 7.
  • org/camunda/bpm/camunda-engine-plugin-spin

Additionally, replace the following dependent modules:

  • com/fasterxml/jackson/core/jackson-annotations
  • com/fasterxml/jackson/core/jackson-core
  • com/fasterxml/jackson/core/jackson-databind
  • com/jayway/jsonpath/json-path
  • net/minidev/accessors-smart
  • net/minidev/json-smart

Groovy

Replace the ‘org/codehaus/groovy/groovy-all’ module from the folder $WILDFLY_HOME/modules/ with the following modules from the folder $WILDFLY_DISTRIBUTION/modules/, if present:

  • org/codehaus/groovy/groovy-all
  • org/codehaus/groovy/groovy
  • org/codehaus/groovy/groovy-jsr223
  • org/codehaus/groovy/groovy-json
  • org/codehaus/groovy/groovy-xml
  • org/codehaus/groovy/groovy-templates

3. Update Camunda web applications

Update REST API

The following steps are required to update the Camunda REST API on a JBoss/Wildfly instance:

  1. Undeploy an existing web application with a name like camunda-engine-rest.
  2. Download the REST API web application archive from our Maven Artifactory. Alternatively, switch to the private repository for the enterprise version (credentials from license required).
    • For WildFly 27+, the name of the artifact is $PLATFORM_VERSION/camunda-engine-rest-jakarta-$PLATFORM_VERSION-wildfly.war.
    • For WildFly ≤26 / JBoss EAP 7, the name of the artifact is $PLATFORM_VERSION/camunda-engine-rest-$PLATFORM_VERSION-wildfly.war.
  3. Deploy the web application archive to your JBoss/WildFly instance.

Update Cockpit, Tasklist, and Admin

The following steps are required to update the Camunda web applications Cockpit, Tasklist, and Admin on a JBoss/WildFly instance:

  1. Un-deploy an existing web application with a name like camunda-webapp.
  2. Download the Camunda web application that contains the web applications from our Maven Artifactory. Alternatively, switch to the private repository for the enterprise version (credentials from license required).
    • For WildFly 27+, the name of the artifact is $PLATFORM_VERSION/camunda-webapp-wildfly-$PLATFORM_VERSION.war.
    • For WildFly ≤26 / JBoss EAP 7, the name of the artifact is $PLATFORM_VERSION/camunda-webapp-jboss-$PLATFORM_VERSION.war.
  3. Deploy the web application archive to your JBoss/WildFly instance.

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