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<dependency>
  <groupId>org.apache.camel</groupId>
  <artifactId>camel-scala</artifactId>
  <version>2.9.0</version>
</dependency>
<version>x.x.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>

Starting from version 2.11 Camel Scala DSL is compiled against Scala 2.10. If you plan to use Scala 2.9 with Camel 2.11, add the following to your pom.xml file instead.

<dependency>
  <groupId>org.apache.camel</groupId>
  <artifactId>camel-scala_2.9</artifactId>
  <version>2.11.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>

Support for Scala 2.9 is deprecated and will be removed starting from the Camel 2.12 and 3.0.