Caused by: java.lang.ClassNotFoundException: com.amazonaws.transform.JsonErrorUnmarshallerV2

Question

Im pretty sure the reason for this is because of mismatched versions so im sharing all my pom files, i have modules of project when i was working in one of the module where i had to use cognito i added dependency and changed all other to newer version as cognito does not support older version but now in another module im getting this error

     <dependencies>
              <dependency>
                <groupId>com.amazonaws</groupId>
                <artifactId>aws-java-sdk-bom</artifactId>
                <version>1.11.109</version>
                <type>pom</type>
                <scope>import</scope>
              </dependency>
    </dependencies>

     </dependencyManagement>

            <dependencies>


                <dependency>
                    <groupId>javax.servlet</groupId>
                    <artifactId>javax.servlet-api</artifactId>
                    <version>3.1.0</version>
                </dependency>

                <dependency>
                    <groupId>org.postgresql</groupId>
                    <artifactId>postgresql</artifactId>
                    <version>9.4-1201-jdbc41</version>
                </dependency>

                <dependency>
                    <groupId>net.postgis</groupId>
                    <artifactId>postgis-jdbc</artifactId>
                    <version>2.2.0</version>
                    <exclusions>
                        <exclusion>
                            <groupId>postgresql</groupId>
                            <artifactId>postgresql</artifactId>
                        </exclusion>
                    </exclusions>
                </dependency>

                <!-- Jackson -->
                <dependency>
                    <groupId>com.fasterxml.jackson.core</groupId>
                    <artifactId>jackson-core</artifactId>
                    <version>2.6.6</version>
                </dependency>
                <dependency>
                    <groupId>com.fasterxml.jackson.core</groupId>
                    <artifactId>jackson-databind</artifactId>
                    <version>2.6.6</version>
                </dependency>


                <!-- Spring -->
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-web</artifactId>
                    <version>${org.springframework.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-context</artifactId>
                    <version>${org.springframework.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-aspects</artifactId>
                    <version>${org.springframework.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-webmvc</artifactId>
                    <version>${org.springframework.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-tx</artifactId>
                    <version>${org.springframework.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-context-support</artifactId>
                    <version>${org.springframework.version}</version>
                </dependency>

                <!-- Spring JDBC -->
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-jdbc</artifactId>
                    <version>${org.springframework.version}</version>
                </dependency>

                <!-- Spring Security -->
                <dependency>
                    <groupId>org.springframework.security</groupId>
                    <artifactId>spring-security-core</artifactId>
                    <version>${spring.security.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.springframework.security</groupId>
                    <artifactId>spring-security-web</artifactId>
                    <version>${spring.security.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.springframework.security</groupId>
                    <artifactId>spring-security-config</artifactId>
                    <version>${spring.security.version}</version>
                </dependency>

                <dependency>
                    <groupId>org.springframework.security</groupId>
                    <artifactId>spring-security-taglibs</artifactId>
                    <version>${spring.security.version}</version>
                </dependency>

                <dependency>
                    <groupId>org.springframework.security.oauth</groupId>
                    <artifactId>spring-security-oauth2</artifactId>
                    <version>2.0.2.RELEASE</version>
                </dependency>
        <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-jms</artifactId>
                    <version>${org.springframework.version}</version>
                </dependency>





                <!-- JSTL -->
                <dependency>
                    <groupId>jstl</groupId>
                    <artifactId>jstl</artifactId>
                    <version>1.2</version>
                </dependency>
                <dependency>
                    <groupId>taglibs</groupId>
                    <artifactId>standard</artifactId>
                    <version>1.1.2</version>
                </dependency>

                <!-- Logging -->
                <dependency>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                    <version>1.6.1</version>
                </dependency>



                <!-- AspectJ dependencies -->
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-aop</artifactId>
                    <version>${org.springframework.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.aspectj</groupId>
                    <artifactId>aspectjrt</artifactId>
                    <version>${aspectj.version}</version>
                    <scope>runtime</scope>
                </dependency>
                <dependency>
                    <groupId>org.aspectj</groupId>
                    <artifactId>aspectjtools</artifactId>
                    <version>${aspectj.version}</version>
                </dependency>

                <!-- Gson: Java to Json conversion -->
                <dependency>
                    <groupId>com.google.code.gson</groupId>
                    <artifactId>gson</artifactId>
                    <version>2.2.4</version>
                </dependency>
                <dependency>
                    <groupId>javax.mail</groupId>
                    <artifactId>mail</artifactId>
                    <version>1.4</version>
                </dependency>
                <dependency>
                    <groupId>javax.activation</groupId>
                    <artifactId>activation</artifactId>
                    <version>1.1</version>
                </dependency>

                <!-- Swagger web service documentation-->



                <!-- Apache Commons FileUpload -->
                <dependency>
                    <groupId>commons-fileupload</groupId>
                    <artifactId>commons-fileupload</artifactId>
                    <version>1.3.1</version>
                </dependency>

                <!-- Apache Commons IO -->
                <dependency>
                    <groupId>commons-io</groupId>
                    <artifactId>commons-io</artifactId>
                    <version>2.4</version>
                </dependency>

                <dependency>
                    <groupId>commons-codec</groupId>
                    <artifactId>commons-codec</artifactId>
                    <version>1.10</version>
                </dependency>

            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-dbcp2</artifactId>
                <version>2.1</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-aws-messaging</artifactId>
                <version>1.1.0.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-aws</artifactId>
                <version>1.1.0.RELEASE</version>
                <type>pom</type>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-aws-core</artifactId>
                <version>1.1.0.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger2</artifactId>
                 <version>2.5.1-SNAPSHOT</version>
            </dependency>
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-core</artifactId>
                 <version>2.5.1-SNAPSHOT</version>
            </dependency>
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger-ui</artifactId>
                 <version>2.5.1-SNAPSHOT</version>
            </dependency>
</dependencies>

In another file:

<dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk-bom</artifactId>
            <version>1.11.109</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency> 

          <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk-dynamodb</artifactId>
            <version>1.11.109</version>
    </dependency> 



 <dependency>
    <groupId>com.amazonaws</groupId>
    <artifactId>aws-java-sdk-cognitoidp</artifactId>
    <version>1.11.109</version>
</dependency>

pravinbhogil · Accepted Answer · 2020-07-21 07:59:53Z

7

You should add aws core dependency rather than full sdk as suggested in above answer

<dependency>
    <groupId>com.amazonaws</groupId>
    <artifactId>aws-java-sdk-core</artifactId>
    <version>1.11.822</version>
</dependency>

answered Jul 21, 2020 at 7:59

pravinbhogil

7152 gold badges9 silver badges13 bronze badges

use version 1.11.873 (aws-java-sdk-core)
– Jacob Joy
Commented Jan 26, 2021 at 11:32
it helped for me too! but still its not clear why in detail...
– hasan
Commented Feb 16, 2021 at 21:06
@hasan Its because aws has created common features or common stuff inside this core dependency for example convert object to json or vice versa. If you are using any dependency for example s3 and if it doesn't include core dependency you have to add that as separate dependence.
– pravinbhogil
Commented Feb 17, 2021 at 14:22

Add a comment |

Ealon · Accepted Answer · 2017-10-11 15:33:01Z

4

Adding aws-java-sdk dependency will work.

https://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk

answered Oct 11, 2017 at 15:33

Ealon

4,9289 gold badges37 silver badges67 bronze badges

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