@svenr If you are using Java 9 or above, you additionally need a JAXB implementation. We recommend to use version 2.2.3 of com.sun.xml.bind:jaxb-impl .
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.2.3</version>
</dependency>
The following Maven coordinate needs to be added to the projects pom.xml:
<dependency>
<groupId>org.camunda.bpm</groupId>
<artifactId>camunda-external-task-client</artifactId>
<version>${version}</version>
</dependency>
If you want to use a JDK higher than 1.8, please add the following dependency to the projects pom.xml :
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.2.4</version>
</dependency>
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