AEM SDK version upgrade in AEM as a cloud service : pipeline failed due to compilation failure

[Kamaraj_A]

I am trying to update AEM SDK version from 2021.6.5540.20210615T210737Z-210527 to 2023.4.11835.20230414T234523Z-230200. The build is working fine in local  (local java 11.0.13 2021-10-19 LTS)

08:57:35,922 [main] [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project aem-project.core: Compilation failure
08:57:35,922 [main] [ERROR] /build_root/build/etisalat-p42155/core/src/main/java/com/project/core/services/impl/GoogleMapsServiceImpl.java:[5,41] cannot access org.apache.jackrabbit.oak.commons.PropertiesUtil
08:57:35,923 [main] [ERROR] bad class file: /root/.m2/repository/com/adobe/aem/aem-sdk-api/2023.4.11835.20230414T234523Z-230200/aem-sdk-api-2023.4.11835.20230414T234523Z-230200.jar(org/apache/jackrabbit/oak/commons/PropertiesUtil.class)
08:57:35,924 [main] [ERROR] class file has wrong version 55.0, should be 52.0
08:57:35,925 [main] [ERROR] Please remove or make sure it appears in the correct subdirectory of the classpath.

After go through some experinceleaguecommunities pages,  I can understand that cloudmanager is using java 8 to compile the code. So I am getting this error. Also all are suggesting that to upgrade the cloud manger java version to 11.

1)  Will this version 2023.4.11835.20230414T234523Z-230200 support backward compatibility to java 8
2) Is there anyway to fix this issue without upgrading to java 11.

Please advise.

[Imran__Khan]

Maven Compiler Plugin version 3.8.0 is compatible with Java 11. However, it's always recommended to use the latest version of the Maven Compiler Plugin to ensure compatibility with newer Java versions and to benefit from bug fixes and enhancements.

<plugin>
	<groupId>org.apache.maven.plugins</groupId>            
	<artifactId>maven-compiler-plugin</artifactId> 
	<configuration>                              
	  <source>1.8</source>
	  <target>1.8</target>
	</configuration>
</plugin>

[Kamaraj_A]

<!-- Maven Compiler Plugin -->
<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <configuration>
        <source>1.8</source>
        <target>1.8</target>
    </configuration>
</plugin>

This is my config in pom.xml 
For local build, I am using maven 3.8.6. From the pipeline log, I can see cloud manager is using maven 3.8.1.
08:57:35,922 [main] [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project.
Do I need to add version property in the plugin config?

[Imran__Khan · Accepted solution]

@Kamaraj_A Its a hard dependency, upgrading to Java 11 will resolve you issue.

[arunpatidar]

Hi @Kamaraj_A 
I think you should to Adobe CSE to check the version on cloud, It must be 11