Скачать или смотреть Resolving java.lang.NoSuchMethodError in Kafka Streams: A Guide to Version Compatibility

Facing a `java.lang.NoSuchMethodError` in your Kafka Streams application? This article breaks down the issue and provides practical solutions to ensure your Kafka Streams instances run smoothly.
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Resolving java.lang.NoSuchMethodError in Kafka Streams: A Guide to Version Compatibility

When working with Kafka Streams, developers may encounter various exceptions that can thwart progress. One particularly frustrating error is the java.lang.NoSuchMethodError. This error typically signifies a version mismatch between different Kafka components, making it crucial to understand how to troubleshoot and resolve it effectively.

The Problem: The NoSuchMethodError

While trying to create a Kafka Streams instance, you might see an error message similar to this:

[[See Video to Reveal this Text or Code Snippet]]

This error suggests that the Java code is attempting to call a method that does not exist in the current version of the class it is trying to access. In this instance, the root cause lies in the version mismatch between Kafka Streams and Kafka clients.

Understanding the Cause

The error message stems from the org.apache.kafka.common.metrics.Sensor class. Specifically, it indicates that the add method being called is missing, which implies that:

The Kafka Streams library you are using may not be compatible with the version of the Kafka clients declared as a dependency.

For example, you might have included the following dependencies in your project:

org.apache.kafka:kafka-streams-scala_2.11:2.1.0

org.apache.kafka:kafka-clients:1.0.2

Here, the Kafka Streams version 2.1.0 requires a compatible version of the Kafka clients, which in this case would likely be 2.1.0 as well.

The Solution: Aligning Versions

To resolve this error, you need to ensure that both your Kafka Streams and Kafka Clients are using matching versions. As confirmed by community member @ Matthias, the correct approach is:

Update the Kafka Clients Dependency:

Change the Kafka clients version in your project to match that of Kafka Streams. Modify your dependencies like so:

[[See Video to Reveal this Text or Code Snippet]]

Verify Dependencies:

Check that all the necessary jars are successfully imported into your project. You can do this in your build tool like Maven or Gradle, or by inspecting your IDE’s project structure to ensure there are no discrepancies.

Rebuild Your Project:

After updating the dependencies, perform a clean build of your project to ensure that all changes take effect.

Conclusion

Version alignment is crucial when dealing with libraries in Java, especially with complex frameworks like Kafka. If you encounter the java.lang.NoSuchMethodError while working with Kafka Streams, it is likely due to an incompatibility between the versions of the Kafka Streams and Kafka Clients libraries.

By following the steps outlined above—specifically, ensuring you are using the same version for both libraries—you can resolve the issue and get back to building your Kafka Streams application without further interruptions. Happy coding!