[FIXED] Exception while building a war file via (maven install) for a spring boot project with mongodb

Issue

I am trying to build a spring-boot application with mongodb. I excluded the spring-boot-starter-data-mongodb dependency and using mongodb-driver 3.12.5.

My application.properties file contains only spring.data.mongodb.uri=connection _string.

With this above configuration I am unable to build a war file to deploy in server. It is giving the following error.

java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongo' defined in class path resource [org/springframework/boot/autoconfigure/mongo/MongoAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.mongodb.client.MongoClient]: Factory method 'mongo' threw exception; nested exception is java.lang.NoClassDefFoundError: com/mongodb/connection/DefaultClusterFactory
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.mongodb.client.MongoClient]: Factory method 'mongo' threw exception; nested exception is java.lang.NoClassDefFoundError: com/mongodb/connection/DefaultClusterFactory
Caused by: java.lang.NoClassDefFoundError: com/mongodb/connection/DefaultClusterFactory
Caused by: java.lang.ClassNotFoundException: com.mongodb.connection.DefaultClusterFactory

please help, thanks.

Solution

This is issue was solved by replacing the mongodb-driver dependency with mongodb-java-driver dependency

   <dependency>
        <groupId>org.mongodb</groupId>
        <artifactId>mongo-java-driver</artifactId>
        <version>3.6.3</version>
    </dependency>
   

as for the situation i faced i did not add a dependency that i am using in the application. that was the mistake.

Answered By - Govind
Answer Checked By - Gilberto Lyons (JavaFixing Admin)