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Add problem-details: global exception handling with RFC 9457

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Companion code for "Global Exception Handling with ProblemDetail (RFC 9457)
in Spring Boot 4". Thirteen failures under five handling setups (Boot
defaults, the Boot flag, a ResponseEntityExceptionHandler advice, advice
plus an ErrorController, a catch-all ordered first), validation errors,
i18n, content negotiation, Security's 401/403, silent 500s and decoding
on the client. 16 tests pin the behaviour.

Co-Authored-By: Claude Opus 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01C3TETMrqVUWeFkNtz3Jbo3
This commit is contained in:
asmhatre
2026-09-11 17:12:22 +00:00
co-authored by Claude Opus 5
parent a065696478
commit 926250e1a9
63 changed files with 2414 additions and 0 deletions
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problem-details/scripts/demo-i18n.sh
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#!/usr/bin/env bash
# title/detail resolved from messages*.properties for an ErrorResponseException. -> docs/output/i18n.txt
set -uo pipefail
source "$(dirname "$0")/env.sh"
"$MODULE_DIR/scripts/run.sh" advice || exit 1
BODY='{"sku":"SKU-2","quantity":3,"customerEmail":"[email protected]"}'
{
echo "# OutOfStockException - its own ProblemDetail vs messages.properties vs messages_de.properties"
echo
echo "## Exception's own text (what the constructor set):"
echo " title=\"Insufficient stock\" detail=\"Requested 3 of SKU-2 but only 0 available\""
echo
for lang in '' 'de'; do
echo "## Accept-Language: ${lang:-<none>}"
echo "\$ curl -X POST /orders -d '$BODY'${lang:+ -H 'Accept-Language: $lang'}"
curl -s -X POST "$BASE/orders" -H 'Content-Type: application/json' ${lang:+-H "Accept-Language: $lang"} --data "$BODY"; echo; echo
done
} > "$OUT/i18n.txt"
"$MODULE_DIR/scripts/stop.sh"
cat "$OUT/i18n.txt"