Consider the following points:

• The .JAR must be built on JDK11. Ensure that the classes are built on JDK11 and that there’s nothing that is not supported by JDK11.
• Set the scope of Workflow SDK dependencies to "provided". For more information, see topic Dependency Scope.

  See the example:

  
  <dependency>
  	<groupId>com.reltio.workflow</groupId>
  	<artifactId>workflow-api</artifactId>
  	<version>2022.1.0.0</version>
  	<scope>provided</scope>
  </dependency>
  
  <dependency>
  	<groupId>com.reltio.workflow</groupId>
  	<artifactId>workflow-custom</artifactId>
  	<version>2022.1.0.0</version>
  	<scope>provided</scope>
  </dependency>
  

• The custom workflow must be using the AWS SDK for running Lambda functions with AWS libraries as dependencies.

  You can use the sample .pom file given as a template for building custom workflow using Maven.

  Sample: pom.dita

  <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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  	<modelVersion>4.0.0</modelVersion>
  	<groupId>com.reltio.customername</groupId>
  	<artifactId>custom-workflow</artifactId>
  	<version>1.0.7</version>
  	<properties>
  		<aws-sdk-version>1.11.802</aws-sdk-version>
  		<jdk>11</jdk>
  	</properties>
  
  	<dependencies>	
  		<dependency>
  			<groupId>com.amazonaws</groupId>
  			<artifactId>aws-java-sdk-lambda</artifactId>
  			<version>${aws-sdk-version}</version>
  			<exclusions>
  				<exclusion>
  					<groupId>com.amazonaws</groupId>
  					<artifactId>aws-java-sdk-core</artifactId>
  				</exclusion>
  			</exclusions>
  		</dependency>
  
  		<dependency>
  			<groupId>com.amazonaws</groupId>
  			<artifactId>aws-java-sdk-core</artifactId>
  			<scope>provided</scope>
  			<version>${aws-sdk-version}</version>
  		</dependency>
  
  		<dependency>
  			<groupId>com.reltio.workflow</groupId>
  			<artifactId>workflow-api</artifactId>
  			<version>2022.1.0.0</version>
  			<scope>provided</scope>
  		</dependency>
  
  		<dependency>
  			<groupId>com.reltio.workflow</groupId>
  			<artifactId>workflow-custom</artifactId>
  			<version>2022.1.0.0</version>
  			<scope>provided</scope>
  		</dependency>
  	</dependencies>
  
  	<build>
  		<plugins>
  			<plugin>
  				<groupId>org.apache.maven.plugins</groupId>
  				<artifactId>maven-compiler-plugin</artifactId>
  				<configuration>
  					<source>${jdk}</source>
  					<target>${jdk}</target>
  				</configuration>
  			</plugin>
  			<plugin>
  				<groupId>org.apache.maven.plugins</groupId>
  				<artifactId>maven-shade-plugin</artifactId>
  				<version>3.2.1</version>
  				<configuration>
  					<createDependencyReducedPom>false</createDependencyReducedPom>
  				</configuration>
  				<executions>
  					<execution>
  						<phase>package</phase>
  						<goals>
  							<goal>shade</goal>
  						</goals>
  					</execution>
  				</executions>
  			</plugin>
  		</plugins>
  	</build>
  		<repositories>
  		<repository>
  			<id>reltio-libs-release</id>
  			<name>Reltio release repository</name>
  			<url>https://repo-dev.reltio.com/content/repositories/public</url>
  		</repository>
  	</repositories>
  </project>
  

• The .JAR file must have all the dependencies packaged, if any of them are described in the pom.dita file. For more information, see topic Apache Maven Shade Plugin.
• Add the scope to "", if there are similar dependencies in the AWS SDK and Workflow API.

  Ensure that the version is the similar to 1.11.802.

  See the example:

  <dependency>
  	<groupId>com.amazonaws</groupId>
  	<artifactId>aws-java-sdk-s3</artifactId>
  	<version>1.11.802</version>
  </dependency>
  <dependency>
  	<groupId>com.amazonaws</groupId>
  	<artifactId>aws-java-sdk-kms</artifactId>
  	<version>1.11.802</version>
  </dependency>
  <dependency>
  	<groupId>com.amazonaws</groupId>
  	<artifactId>jmespath-java</artifactId>
  	<version>1.11.802</version>
  </dependency>
  <dependency>
  	<groupId>com.amazonaws</groupId>
  	<artifactId>aws-java-sdk-core</artifactId>
  	<version>1.11.802</version>
  </dependency>
  

• Set the scope to "provided", when you use the GSON library.

  See the example:

  
  <dependency>
      <groupId>com.google.code.gson</groupId>
      <artifactId>gson</artifactId>
      <version>2.8.4</version>
      <scope>provided</scope>
  </dependency>
  

• There must not be any unused dependencies.
• Cover at least 70% of your code by Unit/Integration tests.