@Transactional could cause method to throw NPE

[snimavat]

Looks like TransactionalTransform breaks in some rare situations

If Service A extends Service B, and when both has Transactional annotation. if Service A gets compiled before Service B, and when a class has service A injected into it, calling the transactional method on A results in NPE because of null Transaction manager

The reason seems how the transactional AST is done. when AST gets applied to both super/sub classes, the transactionManager in subclass would hide transactionManager in super class. so transactionManager is always null in super class, and when a super class method is called, it results in NPE

Environment Information

• Operating System: OSX ElCapitan
• Grails Version: 2.5.5
• JDK Version: 1.8

Example Application

Look at the attached example application, and run tests, you would see the test fails because of NPE

bugwork.zip

[snimavat]

Looks like this affect 2.x only...