Unable to use 'var' keyword when a module uses aspects plugin

Overview: Module build fails with an error when I use var keyword in a module class that uses aspectj-maven-plugin plugin with <configuration><complianceLevel>1.8
Steps to Reproduce:

1. Open an API implementation class, e.g. org.folio.rest.impl.ServicePointsUserAPI in mod-inventory-storage;
2. Add the var keyword somewhere in a class method, e.g. org.folio.rest.impl.ServicePointsUserAPI#deleteServicePointsUsers:

       // here I use the keyword, which should be correctly resolved to PostgresClient type
       final var pgClient = PgUtil.postgresClient(vertxContext, okapiHeaders);
       pgClient.execute(getDeleteAllQuery(okapiHeaders), mutateReply -> {...});
   

   Set <complianceLevel>1.8</complianceLevel> in the configuration section of aspectj-maven-plugin

3. build the project using maven - mvn clean install -DskipTests

Expected Results: Project built successfully.
Actual Results: Build failed with following error:

[ERROR] Failed to execute goal com.nickwongdev:aspectj-maven-plugin:1.12.6:compile (default) on project mod-inventory-storage: AJC compiler errors:
[ERROR] error at final var pgClient = PgUtil.postgresClient(vertxContext, okapiHeaders);
[ERROR]       
[ERROR] D:\folio\mod-inventory-storage\src\main\java\org\folio\rest\impl\ServicePointsUserAPI.java:29:0::0 var cannot be resolved to a type

Additional Information: The Java 10 keyword 'var' works as expected in tests, but doesn't in production code.
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Interested parties: Java devs.