Olivier Jacquemart created CAMEL-21339: ------------------------------------------
Summary: Client request validation and empty body Key: CAMEL-21339 URL: https://issues.apache.org/jira/browse/CAMEL-21339 Project: Camel Issue Type: Bug Components: came-core Affects Versions: 4.8.0 Reporter: Olivier Jacquemart If you enable the client request validation at a global level, and have a GET rest endpoint, there is no need for a body validation. The problem is if the client sends the Content-type aplication/json. The Content-Type is not needed too but I got the issue because of a client sends this header all the time and I can't change it. I faced the issue while upgrading an application from 3.20.6 to 4.8.0. I Here are curl examples: {code:java} # succeeds $ curl localhost:8080/api/hello {"message":"hello world"} # fails $ curl -H "Content-Type: application/json" localhost:8080/api/hello Invalid JSon payload.{code} In the problematic case, the [DefaultRestClientRequestValidator|https://github.com/apache/camel/blob/main/core/camel-support/src/main/java/org/apache/camel/support/processor/DefaultRestClientRequestValidator.java] will try to deserialize the json against an empty string and will fail because it's not a valid json. -- This message was sent by Atlassian Jira (v8.20.10#820010)