Spring Boot 3 compatibility

[akulik512]

Hello guys
I'm slightly confused about the spring-cloud-aws compatibility with Spring Boot 3.

As I see from the information on the website https://awspring.io/learn/introduction, Spring Boot 3 and Spring Cloud AWS compatibility is currently being worked on.

Version 3.x is under heavy development. It is based on AWS SDK 2.x, with many integrations rewritten from scratch in order to align Spring Cloud AWS with patterns and practices introduced in Spring Boot.

I'm also getting strange errors related to missing classes. For example, using Spring Boot 2.5.5 version for an application that reads messages from the AWS SQS queue works fine, but when migrating this application to Spring Boot 3 version I start getting errors.

Caused by: java.lang.NoClassDefFoundError: software/amazon/awssdk/awscore/client/builder/AwsClientBuilder
	at java.base/java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.base/java.lang.Class.privateGetDeclaredConstructors(Class.java:3373)
	at java.base/java.lang.Class.getConstructors(Class.java:2060)
	at org.springframework.core.io.support.SpringFactoriesLoader$FactoryInstantiator.findConstructor(SpringFactoriesLoader.java:405)
	at org.springframework.core.io.support.SpringFactoriesLoader$FactoryInstantiator.forClass(SpringFactoriesLoader.java:394)
	at org.springframework.core.io.support.SpringFactoriesLoader.instantiateFactory(SpringFactoriesLoader.java:227)
	... 104 more
Caused by: java.lang.ClassNotFoundException: software.amazon.awssdk.awscore.client.builder.AwsClientBuilder
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
	... 110 more

At the same time, I see here in the discussions that guys are actively experimenting with AWS SQS on Spring Boot version 3. I.e. it works for them. #628

Can you please help me understand the current compatibility of spring-cloud-aws with Spring Boot 3?

To better illustrate my problem I have created two repositories. One uses Spring Boot 2.5.5 (everything works fine here) and the second an absolutely identical repository (slight change in the configuration class), but with Spring Boot 3.0.6 version and here the application crashes with an error.
1 - Spring Boot 3.0.6 - https://github.com/akulik512/samples
2 - Spring Boot 2.5.5 - https://github.com/akulik512/samples-old
Technology stack: Spring Boot, awspring, Testcontainers

[PatrickGotthard]

Hi @akulik512,

version 3.x will be compatible with Spring Boot 3. Currently there are only Release Candidates (see #572).

Regards,
Patrick

[akulik512]

Hi @PatrickGotthard
I got it 🙂 Thank you very much!