Java NoClassDefFoundError: com.alibaba.fastjson.b - Dependency Issue Solution

This error message indicates that a class called 'com.alibaba.fastjson.b' could not be found. This could be caused by a missing or incorrect dependency in your project.

To resolve this issue, you should check that all required dependencies are correctly included in your project's classpath. You may need to add the missing dependency to your project's build file (e.g. pom.xml for Maven projects or build.gradle for Gradle projects).

Alternatively, it is possible that the class is not included in any of your dependencies. In this case, you may need to search for the correct dependency that includes the missing class and add it to your project.