Caused by: java.lang.ClassNotFoundException: org.apache.kafka.common.KafkaException

This error message indicates that the class org.apache.kafka.common.KafkaException is not found in the classpath. This can happen if the required Kafka library is not included in the project or if there is a version mismatch between the Kafka library and the project. To resolve this issue, make sure that the correct version of the Kafka library is included in the project's classpath and that there are no conflicts with other dependencies.

相关问题

Caused by: java.lang.ClassNotFoundException: org.apache.kafka.common.serialization.ExtendedDeserializer

根据提供的引用内容，报错信息显示了一个`java.lang.ClassNotFoundException`异常，异常信息中指出了缺少`org.apache.commons.logging.Log`类。这个异常通常发生在Java应用程序中，当应用程序无法找到所需的类时会抛出该异常。

对于你提到的`Caused by: java.lang.ClassNotFoundException: org.apache.kafka.common.serialization.ExtendedDeserializer`异常，它表示在你的应用程序中无法找到`org.apache.kafka.common.serialization.ExtendedDeserializer`类。这可能是由于缺少相关的依赖库或配置问题导致的。

解决这个问题的方法是确保你的应用程序的类路径中包含了所需的类。你可以尝试以下几种方法来解决这个问题：

1. 确保你的项目中包含了`org.apache.commons.logging.Log`类的依赖库。你可以在项目的构建文件（如`pom.xml`或`build.gradle`）中添加相关的依赖项，以确保该类可用。

2. 检查你的应用程序的配置文件，确保正确配置了相关的类路径。你可以查看应用程序的启动脚本或配置文件，例如`catalina.sh`或`web.xml`，以确保正确设置了类路径。

3. 如果你使用的是Java开发工具（如Eclipse或IntelliJ IDEA），请确保你的项目设置中包含了所需的类。你可以检查项目的构建路径或依赖项设置，以确保相关的类被正确引入。

请注意，具体的解决方法可能因你的应用程序和环境而异。如果以上方法都无法解决问题，你可能需要进一步调查并查找其他可能的原因。

Caused by: java.lang.ClassNotFoundException: org.apache.kafka.common.Configurable

This error message indicates that the Java class "org.apache.kafka.common.Configurable" could not be found. This could be due to one of several reasons:

1. The required Kafka library or dependency is not included in the project or application.
2. The Kafka library or dependency is not properly configured or installed.
3. The classpath is not set up correctly to include the required Kafka library or dependency.

To fix this error, you should ensure that the Kafka library or dependency is properly configured and included in the project or application. You should also check the classpath to ensure that it includes the required Kafka library or dependency. If you are using a build tool like Maven or Gradle, you can check the dependencies in the project configuration file to ensure that the required Kafka library or dependency is included.