Claus Ibsen created CAMEL-24857:
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Summary: camel-jbang - the validator reports a ${...} placeholder
used as an endpoint option or bean property value: the syntax is {{key}}
Key: CAMEL-24857
URL: https://issues.apache.org/jira/browse/CAMEL-24857
Project: Camel
Issue Type: Improvement
Components: camel-jbang
Reporter: Claus Ibsen
Found by the stepwise half of the round-2 local-model benchmark (ten
camel-jbang-examples built step by step through the camel-jbang-mcp server,
five runs each, 2026-09-21).
The model (and people coming from Simple) writes
{code:yaml}
period: "${welcome.period}"
period: ${properties:welcome.period}
{code}
or in beans.yaml {{start: ${order.first-number}}}, where Camel's property
placeholder in an endpoint option or a bean property is {{{{welcome.period}}}}.
{{camel validate source}} accepts it (verified: Validation success), the route
reload or the restart then fails with a binding error ("Error binding property
(period=${properties:welcome.period})"), and the writer gets no signal at write
time. Seven of eight failures of two steps in the series were this.
The endpoint checks and the bean/properties checks should report a {{${...}}}
value in an endpoint option (a {{parameters:}} entry or a uri query) or a bean
property with "a property placeholder is written {{{{key}}}}; ${...} is a
Simple expression, which is not evaluated here". The runtime binding error
could say the same when the value starts with ${.
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