AWS SDK v2 Migration

Migrate Java projects from AWS SDK v1 (com.amazonaws) to v2 (software.amazon.awssdk).

When to Use

Project uses deprecated AWS SDK v1 (com.amazonaws.* imports)
Dependabot/security scans flag v1 vulnerabilities
Need features only available in v2 (async clients, HTTP/2, etc.)

Skill Contents

Sections

[When to Use](#when-to-use) (L22-L27)
[Critical: MSK IAM Authentication](#critical-msk-iam-authentication) (L47-L59)
[Migration Strategy (Priority Order)](#migration-strategy-priority-order) (L60-L68)
[Quick Start](#quick-start) (L69-L108)
[References](#references) (L109-L114)
[Related Command](#related-command) (L115-L118)
[Related Resources](#related-resources) (L119-L122)

Available Resources

📚 references/ - Detailed documentation

[migration patterns](references/migration-patterns.md)

Critical: MSK IAM Authentication

When migrating to AWS SDK v2, also update aws-msk-iam-auth if using Kafka with MSK IAM.

Error after migration:

NoClassDefFoundError: com/amazonaws/auth/AWSCredentialsProvider

Fix: Update aws-msk-iam-auth to 2.3.5 (AWS SDK v2 compatible).

See [references/migration-patterns.md](references/migration-patterns.md) for details.

Migration Strategy (Priority Order)

Priority	Strategy	When to Use
1	Update library	A newer version of the library uses v2
2	Update BOM	v1 comes from Spring Boot or other BOM
3	Dependency substitution	Replace v1 artifact with v2 equivalent
4	Direct code migration	Only if no library update available

Quick Start

1. Identify v1 Usages

# Find all files with v1 imports
grep -r "import com.amazonaws" --include="*.java" . | grep -v "/build/"

# Check dependency tree
./gradlew dependencies --configuration runtimeClasspath | grep -B5 "com.amazonaws"

2. Apply Migration

See references/migration-patterns.md for detailed code migration patterns.

Dependency Substitution (in root build.gradle):

allprojects {
    configurations.configureEach {
        resolutionStrategy.dependencySubstitution {
            substitute module("com.amazonaws:aws-java-sdk-s3")
                using module("software.amazon.awssdk:s3:${libs.versions.aws.sdk.v2.get()}")
                because "Migrate to AWS SDK v2"
        }
    }
}

3. Validate

# Verify no v1 imports remain
grep -r "import com.amazonaws" --include="*.java" . | grep -v "/build/"

# Build and test
./gradlew clean build test

References

Reference	Content
[references/migration-patterns.md](references/migration-patterns.md)	Code migration patterns for S3, SQS, SNS, Lambda

Related Command

This skill is referenced by: [/upgrade-to-aws-sdk-v2](../../commands/upgrade-to-aws-sdk-v2.md)

Related Resources

aws-v2

Installation

Also in this package

Agent compatibility

Skill metadata

Package contents

History

SKILL.md