List of TransactionObserver for JdbcResourceLocalTransactionCoordinatorImpl should be lazily initialized

Description

This list is often not used: initialize lazily as each ArrayList is not cheap.

Environment

None

Status

Assignee

Sanne Grinovero

Reporter

Sanne Grinovero

Fix versions

Labels

backPortable

Backport?

Suitable for new contributors

None

Requires Release Note

None

Pull Request

None

backportDecision

None

Components

Priority

Minor
Configure