OnException should overlay settings with existing error handler
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Key: CAMEL-4058
URL: https://issues.apache.org/jira/browse/CAMEL-4058
Project: Camel
Issue Type: Bug
Components: camel-core
Affects Versions: 2.7.2
Reporter: Claus Ibsen
Assignee: Claus Ibsen
Fix For: 2.8.0
See CAMEL-3989
When you have an OnException it should overlay its configuration with the
existing error handler (so its kinda of merge). However we mistakenly set the
handled policy from the OnException always, and dont honor the setting from the
error handler. So in case of DeadLetterChannel which always handle the
exception, it will cause the exception to not be handled and thus rethrown in
Camel.
This problem is only apparent when using the DLC as its the only error handler
that handles and moves the exchange to the DLC. The other error handler will
log or the likes, but still keep the exception on the exchange to propagated
back the exception to the caller.
So we only noticed this when testing with DLC, and what Hadrian was trying to
do in CAMEL-3989
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