Document that XML file mappings can reside outside of JAR

Description

As illustrated in this blog post, we should document this behavior in the User Guide as well.

Environment

None

Status

Assignee

Vlad Mihalcea

Reporter

Vlad Mihalcea

Fix versions

Labels

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backPortable

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Suitable for new contributors

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Requires Release Note

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Pull Request

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backportDecision

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Priority

Major