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The process engine configuration can be extended through process engine plugins. A process engine plugin is an extension to the process engine configuration. A plugin must provide an implementation of the ProcessEnginePlugin interface.

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Configure Process Engine Plugins

Process engine plugins can be configured The following is an example of how to configure a process engine plugin in a bpm-platform.xml file: 
<?xml version="1.0" encoding="UTF-8"?>
<bpm-platform xmlns="http://www.camunda.org/schema/1.0/BpmPlatform"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.camunda.org/schema/1.0/BpmPlatform http://www.camunda.org/schema/1.0/BpmPlatform ">

  <job-executor>
    <job-acquisition name="default" />
  </job-executor>

  <process-engine name="default">
    <job-acquisition>default</job-acquisition>
    <configuration>org.camunda.bpm.engine.impl.cfg.JtaProcessEngineConfiguration</configuration>
    <datasource>jdbc/ProcessEngine</datasource>

    <plugins>
      <plugin>
        <class>org.camunda.bpm.engine.MyCustomProcessEnginePlugin</class>
        <properties>
          <property name="boost">10</property>
          <property name="maxPerformance">true</property>
          <property name="actors">akka</property>
        </properties>
      </plugin>
    </plugins>
  </process-engine>

</bpm-platform>
A process engine plugin class must be visible to the classloader which loads the process engine classes.

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List of Built-In Process Engine Plugins

The following is a list of built-in process engine plugins: