Claus Ibsen created CAMEL-24836:
-----------------------------------
Summary: PropertyBindingException from camel-main configuration
hides the cause: the message should carry the root cause
Key: CAMEL-24836
URL: https://issues.apache.org/jira/browse/CAMEL-24836
Project: Camel
Issue Type: Improvement
Components: camel-core
Reporter: Claus Ibsen
Starting with
{code}
camel.component.rest-openapi.host=http://localhost:8080/api
{code}
fails with
{code}
Error starting Camel: org.apache.camel.PropertyBindingException: Error binding
property (camel.component.rest-openapi.host=http://localhost:8080/api) with
name: host on bean:
org.apache.camel.component.rest.openapi.RestOpenApiComponent@56826a75 with
value: http://localhost:8080/api
{code}
The reason is two {{Caused by}} lines down the stack trace:
{code}
Caused by: java.lang.IllegalArgumentException: host must be an absolute URI
(e.g. http://api.example.com), given: `http://localhost:8080/api`
{code}
The first line is what a person reads, what an IDE shows, and what a coding
agent gets when the log is trimmed; it says the binding failed and nothing
about why. {{PropertyBindingException.getMessage()}} (or the main support's
error reporting) should append the message of the root cause when there is one:
"... with value: http://localhost:8080/api: host must be an absolute URI (e.g.
http://api.example.com)".
Found in the round-2 local-model benchmark on the camel-jbang-examples ladder:
the model set the host with a path, read the first line, and could only guess.
The same applies to every setter that throws an IllegalArgumentException with a
good message.
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