Fixes: #9745 Issue link: https://github.com/spring-projects/spring-integration/issues/9745 The `IntegrationEvaluationContextFactoryBean` does not provide a `TypeLocator` by default. That may lead to a class-not-found problem from different `ClassLoader` in the parallel Java `Stream` executor. * Fix `IntegrationEvaluationContextFactoryBean` to use a `StandardTypeLocator` based on the `applicationContext.getClassLoader()` **Auto-cherry-pick to `6.4.x` & `6.3.x`**