Migration tool (preview release)

Navigate to your Maven project's root directory

Open a terminal (command line) window and navigate to the root directory of your Maven-based application.

Run the plugin's rewrite-maven-plugin command

You can choose from two modes (Maven goals): dryRun and run.

dryRun mode

In the dryRun mode, the plugin generates diff logs in the console output and a patch file named rewrite.patch in the target/rewrite folder. This mode allows you to preview the changes that would be made, since no changes are made to source code files.

The following example show how to invoke the plugin in dryRun mode.

mvn org.openrewrite.maven:rewrite-maven-plugin:dryRun \
  -Drewrite.recipeArtifactCoordinates=software.amazon.awssdk:v2-migration:<sdkversion>*-PREVIEW \
  -Drewrite.activeRecipes=software.amazon.awssdk.v2migration.AwsSdkJavaV1ToV2

*Replace <sdkversion> with a 2.x SDK version. Visit Maven Central to check for the latest version.

Your console output from the dryRun mode should resemble the following output.

[WARNING] These recipes would make changes to project/src/test/resources/maven/before/pom.xml:
[WARNING]     software.amazon.awssdk.v2migration.AwsSdkJavaV1ToV2
[WARNING]         software.amazon.awssdk.v2migration.UpgradeSdkDependencies
[WARNING]             org.openrewrite.java.dependencies.AddDependency: {groupId=software.amazon.awssdk, artifactId=apache-client, version=2.27.0, onlyIfUsing=com.amazonaws.ClientConfiguration}
[WARNING]             org.openrewrite.java.dependencies.AddDependency: {groupId=software.amazon.awssdk, artifactId=netty-nio-client, version=2.27.0, onlyIfUsing=com.amazonaws.ClientConfiguration}
[WARNING]             org.openrewrite.java.dependencies.ChangeDependency: {oldGroupId=com.amazonaws, oldArtifactId=aws-java-sdk-bom, newGroupId=software.amazon.awssdk, newArtifactId=bom, newVersion=2.27.0}
[WARNING]             org.openrewrite.java.dependencies.ChangeDependency: {oldGroupId=com.amazonaws, oldArtifactId=aws-java-sdk-s3, newGroupId=software.amazon.awssdk, newArtifactId=s3, newVersion=2.27.0}
[WARNING]             org.openrewrite.java.dependencies.ChangeDependency: {oldGroupId=com.amazonaws, oldArtifactId=aws-java-sdk-sqs, newGroupId=software.amazon.awssdk, newArtifactId=sqs, newVersion=2.27.0}
[WARNING] These recipes would make changes to project/src/test/resources/maven/before/src/main/java/foo/bar/Application.java:
[WARNING]     software.amazon.awssdk.v2migration.AwsSdkJavaV1ToV2
[WARNING]         software.amazon.awssdk.v2migration.S3GetObjectConstructorToFluent
[WARNING]             software.amazon.awssdk.v2migration.ConstructorToFluent
[WARNING]         software.amazon.awssdk.v2migration.S3StreamingResponseToV2
[WARNING]         software.amazon.awssdk.v2migration.ChangeSdkType
[WARNING]         software.amazon.awssdk.v2migration.ChangeSdkCoreTypes
[WARNING]             software.amazon.awssdk.v2migration.ChangeExceptionTypes
[WARNING]                 org.openrewrite.java.ChangeType: {oldFullyQualifiedTypeName=com.amazonaws.AmazonClientException, newFullyQualifiedTypeName=software.amazon.awssdk.core.exception.SdkException}
[WARNING]                 org.openrewrite.java.ChangeMethodName: {methodPattern=com.amazonaws.AmazonServiceException getRequestId(), newMethodName=requestId}
[WARNING]                 org.openrewrite.java.ChangeMethodName: {methodPattern=com.amazonaws.AmazonServiceException getErrorCode(), newMethodName=awsErrorDetails().errorCode}
[WARNING]                 org.openrewrite.java.ChangeMethodName: {methodPattern=com.amazonaws.AmazonServiceException getServiceName(), newMethodName=awsErrorDetails().serviceName}
[WARNING]                 org.openrewrite.java.ChangeMethodName: {methodPattern=com.amazonaws.AmazonServiceException getErrorMessage(), newMethodName=awsErrorDetails().errorMessage}
[WARNING]                 org.openrewrite.java.ChangeMethodName: {methodPattern=com.amazonaws.AmazonServiceException getRawResponse(), newMethodName=awsErrorDetails().rawResponse().asByteArray}
[WARNING]                 org.openrewrite.java.ChangeMethodName: {methodPattern=com.amazonaws.AmazonServiceException getRawResponseContent(), newMethodName=awsErrorDetails().rawResponse().asUtf8String}
[WARNING]                 org.openrewrite.java.ChangeType: {oldFullyQualifiedTypeName=com.amazonaws.AmazonServiceException, newFullyQualifiedTypeName=software.amazon.awssdk.awscore.exception.AwsServiceException}
[WARNING]         software.amazon.awssdk.v2migration.NewClassToBuilderPattern
[WARNING]             software.amazon.awssdk.v2migration.NewClassToBuilder
[WARNING]             software.amazon.awssdk.v2migration.V1SetterToV2
[WARNING]         software.amazon.awssdk.v2migration.V1GetterToV2
...
[WARNING]         software.amazon.awssdk.v2migration.V1BuilderVariationsToV2Builder
[WARNING]         software.amazon.awssdk.v2migration.NewClassToBuilderPattern
[WARNING]             software.amazon.awssdk.v2migration.NewClassToBuilder
[WARNING]             software.amazon.awssdk.v2migration.V1SetterToV2
[WARNING]         software.amazon.awssdk.v2migration.HttpSettingsToHttpClient
[WARNING]         software.amazon.awssdk.v2migration.WrapSdkClientBuilderRegionStr
[WARNING] Patch file available:
[WARNING]     project/src/test/resources/maven/before/target/rewrite/rewrite.patch
[WARNING] Estimate time saved: 20m
[WARNING] Run 'mvn rewrite:run' to apply the recipes.

run mode

When you run the plugin in run mode, it modifies the source code on disk to apply the changes. Make sure you have a backup of the source code before running the command.

The following example show how to invoke the plugin in run mode.

mvn org.openrewrite.maven:rewrite-maven-plugin:run \
  -Drewrite.recipeArtifactCoordinates=software.amazon.awssdk:v2-migration:<sdkversion>*-PREVIEW \
  -Drewrite.activeRecipes=software.amazon.awssdk.v2migration.AwsSdkJavaV1ToV2

*Replace <sdkversion> with a 2.x SDK version. Visit Maven Central to check for the latest version.

After you run the command, compile your application and run tests to verify the changes.

Navigate to your Maven project's root directory

Open a terminal (command line) window and navigate to the root directory of your Gradle-based application.

Create a Gradle init script

Create a init.gradle file with the following content in the directory.

initscript {
    repositories {
        maven { url "https://plugins.gradle.org/m2" }
    }
    dependencies {
        classpath("org.openrewrite:plugin:latest.release")
    }
}

rootProject {
    plugins.apply(org.openrewrite.gradle.RewritePlugin)
    dependencies {
        rewrite("software.amazon.awssdk:v2-migration:latest.release")
    }

    afterEvaluate {
        if (repositories.isEmpty()) {
            repositories {
                mavenCentral()
            }
        }
    }
}

Run the rewrite command

As with the Maven plugin, you can run the Gradle plugin in dryRun or run mode.

dryRun mode

The following example show how to invoke the plugin in dryRun mode.

gradle rewriteDryRun --init-script init.gradle \
  -Drewrite.activeRecipes=software.amazon.awssdk.v2migration.AwsSdkJavaV1ToV2

run mode

The following example show how to invoke the plugin in run mode.

gradle rewriteRun --init-script init.gradle \
  -Drewrite.activeRecipes=software.amazon.awssdk.v2migration.AwsSdkJavaV1ToV2