Address PR #687 review concerns on DocumentImporterTest:
- Sara/Felix: add catalog-shape reject tests that pass every char
pre-check but must fail INDEX_PATTERN — "J 0070" (space), "WXYZA-0001"
(5 letters), "12-0001" (no letter prefix), "W-0001X" (uppercase X).
Verified red against a weakened pattern, green against the real one,
so the pattern branch (not the char guards) is now pinned.
- Felix: restore the import java.io.OutputStream line (was over-deleted
and patched with a fully-qualified name).
- Sara: document why the resolvePdfByIndex getCanonicalPath IOException
branch is intentionally left uncovered (no deterministic injection
seam; the log.warn is the substantive fix).
Adjust the two reflective resolvePdfByIndex calls for the new rowNumber
parameter.
Refs #686
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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