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.oss</groupId> <artifactId>java-driver-core-shaded</artifactId> <version>${driver.version}</version> </dependency>
If you also use the query-builder or some other library that depends on java-driver-core, you need to remove its dependency to the non-shaded JAR:
<dependency> <groupId>com.datastax.oss</groupId> <artifactId>java-driver-core-shaded</artifactId> <version>${driver.version}</version> </dependency> <dependency> <groupId>com.datastax.oss</groupId> <artifactId>java-driver-query-builder</artifactId> <version>${driver.version}</version> <exclusions> <exclusion> <groupId>com.datastax.oss</groupId> <artifactId>java-driver-core</artifactId> </exclusion> </exclusions> </dependency>