**cherry-pick to 5.0.x** * Fix test * Polish log message. * Polishing - docs and javadocs. # Conflicts: # spring-integration-core/src/main/java/org/springframework/integration/dsl/IntegrationFlowDefinition.java
**cherry-pick to 5.0.x** * Fix test * Polish log message. * Polishing - docs and javadocs. # Conflicts: # spring-integration-core/src/main/java/org/springframework/integration/dsl/IntegrationFlowDefinition.java