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README.md
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README.md

Using the shaded JAR

The default driver JAR depends on Netty, which is used internally for networking.

This explicit dependency can be a problem if your application already uses another Netty version. To avoid conflicts, we provide a "shaded" version of the JAR, which bundles the Netty classes under a different package name:

<dependency>
  <groupId>com.datastax.cassandra</groupId>
  <artifactId>cassandra-driver-core</artifactId>
  <version>2.1.7</version>
  <classifier>shaded</classifier>
  <!-- Because the shaded JAR uses the original POM, you still need
       to exclude this dependency explicitly: -->
  <exclusions>
    <exclusion>
      <groupId>io.netty</groupId>
      <artifactId>*</artifactId>
    </exclusion>
  </exclusions>
</dependency>

If you also use the mapper, you need to remove its dependency to the non-shaded JAR:

<dependency>
  <groupId>com.datastax.cassandra</groupId>
  <artifactId>cassandra-driver-core</artifactId>
  <version>2.1.7</version>
  <classifier>shaded</classifier>
  <exclusions>
    <exclusion>
      <groupId>io.netty</groupId>
      <artifactId>*</artifactId>
    </exclusion>
  </exclusions>
</dependency>
<dependency>
  <groupId>com.datastax.cassandra</groupId>
  <artifactId>cassandra-driver-mapping</artifactId>
  <version>2.1.7</version>
  <exclusions>
    <exclusion>
      <groupId>com.datastax.cassandra</groupId>
      <artifactId>cassandra-driver-core</artifactId>
    </exclusion>
  </exclusions>
</dependency>