Merge pull request #19231 from andreas-eberle/forward-mismatched-inpu…

…t-exception

Add causing exception to WebApplicationException when jackson parsing fails in resteasy reactive

extensions/resteasy-reactive/quarkus-resteasy-reactive-jackson-common/runtime/src/main/java/io/quarkus/resteasy/reactive/jackson/runtime/serialisers/JacksonBasicMessageBodyReader.java

@@ -33,7 +33,7 @@ public Object readFrom(Class<Object> type, Type genericType, Annotation[] annota
         try {
             return doReadFrom(type, genericType, entityStream);
         } catch (MismatchedInputException e) {
-            throw new WebApplicationException(Response.Status.BAD_REQUEST);
+            throw new WebApplicationException(e, Response.Status.BAD_REQUEST);
         }
     }