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CAMEL-23510: flag camel-jgroups header rename as potential breaking change in 4.14 upgrade guide #23441

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oscerd merged 1 commit into from
May 22, 2026
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CAMEL-23510: flag camel-jgroups header rename as potential breaking change in 4.14 upgrade guide #23441

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13 changes: 7 additions & 6 deletions docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_14.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -430,7 +430,7 @@ The same pattern applies to HTTP-based bridges (`platform-http`/`jetty`/`netty
-http`/`http` -> `cxf:`) and any other transport whose default
`HeaderFilterStrategy` filters `Camel*` headers.

=== camel-jgroups
=== camel-jgroups - potential breaking change

The Exchange header constants in `JGroupsConstants` have been renamed to follow
the Camel naming convention used across the rest of the component catalog. The
Expand All @@ -445,8 +445,9 @@ Java field names are unchanged; only the header string values have changed:
| `JGroupsConstants.HEADER_JGROUPS_ORIGINAL_MESSAGE` | `JGROUPS_ORIGINAL_MESSAGE` | `CamelJGroupsOriginalMessage`
|===

Routes that reference the constant symbolically (for example
`setHeader(JGroupsConstants.HEADER_JGROUPS_DEST, ...)`) continue to work
without changes. Routes that set the header by its literal string value
(for example `setHeader("JGROUPS_DEST", ...)`) must be updated to use the
new value (`setHeader("CamelJGroupsDest", ...)`).
This is a breaking change for routes that read or write these headers by
their literal string value. Routes that reference the constant symbolically
(for example `setHeader(JGroupsConstants.HEADER_JGROUPS_DEST, ...)`) continue
to work without changes. Routes that set the header by its literal string
value (for example `setHeader("JGROUPS_DEST", ...)`) must be updated to use
the new value (`setHeader("CamelJGroupsDest", ...)`).
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