java.lang.NoClassDefFoundError: com/amazonaws/client/builder/AdvancedConfig

[jennings1716]

I receive the error when I try to instantiate AWSSNSClient

    ```

AmazonSNSClient snsClient = new AmazonSNSClient(credentials); snsClient.setRegion(Region.getRegion(Regions.--)); ObjectMapper Obj = new ObjectMapper(); PublishRequest publishRequest = new PublishRequest(); publishRequest.setTargetArn("arn:aws:sns:-----"); publishRequest.setMessage(transactionId); PublishResult publishResponse = snsClient.publish(publishRequest);

My pox.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.4.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.cmds</groupId>
    <artifactId></artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name></name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.amazonaws</groupId>
                <artifactId>aws-java-sdk-bom</artifactId>
                <version>1.11.721</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-kubernetes-config</artifactId>
            <version>1.1.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.integration</groupId>
            <artifactId>spring-integration-flow</artifactId>
            <version>1.0.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jms</artifactId>
            <version>5.2.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>amazon-sqs-java-messaging-lib</artifactId>
            <version>1.0.8</version>
        </dependency>
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk-sns</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>2.3</version>
                <configuration>
                    <createDependencyReducedPom>false</createDependencyReducedPom>
                </configuration>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

        </plugins>

    </build>

</project>

Error:

java.lang.NoClassDefFoundError: com/amazonaws/client/builder/AdvancedConfig
    at com.amazonaws.services.sns.AmazonSNSClient.<init>(AmazonSNSClient.java:174) ~[aws-java-sdk-sns-1.11.721.jar:na]
    at com.amazonaws.services.sns.AmazonSNSClient.<init>(AmazonSNSClient.java:151) ~[aws-java-sdk-sns-1.11.721.jar:na]
    at com.cmds.booking.infrastructure.SNSService.publishMessage(SNSService.java:18) ~[classes/:na]

Is there any dependency issue ?

[debora-ito]

Hi @jennings1716, NoClassDefFound Errors usually indicate conflicting versions of the same dependency in your environment. Can you run mvn dependency:tree and post the relevant output?

[debora-ito]

Closing due to no response. Feel free to reopen if you are still experiencing this.

[shehan-jay]

I updated the same version for aws-java-sdk-core and aws-java-sdk-secretsmanager. things got resolved.

    <dependency>
      <groupId>com.amazonaws</groupId>
      <artifactId>aws-java-sdk-core</artifactId>
      <version>1.12.715</version>
    </dependency>

    <dependency>
      <groupId>com.amazonaws</groupId>
      <artifactId>aws-java-sdk-secretsmanager</artifactId>
      <version>1.12.715</version>
    </dependency>