* GH-3954: Fix WebFlux XML config for ambiguity Fixes https://github.com/spring-projects/spring-integration/issues/3954 When `web-client` attribute is provided for the WebFlux outbound components configuration via XML, the `encoding-mode` is silently ignored * Check for `encoding-mode` attribute presence in the `WebFluxOutboundChannelAdapterParser` when `web-client` is provided and throw respective exception to reject such a config **Cherry-pick to `5.5.x`** * * Improve error messages in the `WebFluxOutboundChannelAdapterParser`