Add mcp-advanced module: resources, prompts, sampling and elicitation on Spring AI 2.0.2 and MCP Java SDK 2.1.0

An incident-desk MCP server with a fixed resource, two resource templates, a prompt, a tool that borrows the client's model (sampling) and a tool that asks the operator to approve a restart (elicitation). Driven by a plain SDK client in JUnit and by raw curl, so the JSON-RPC for both server-to-client requests is committed. Also captured: a client that declared neither capability (a gated tool degrades, an ungated one returns an isError result), a slow client hitting the server request timeout, and protocol=STATELESS silently dropping every tool that takes McpSyncRequestContext (one WARN line, an empty tools/list). Negotiated protocol version is 2025-11-25; the 2026-07-28 spec is not implemented by SDK 2.1.0. No docs/ folder. Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_017ic4b5jAFLJrmUXmbo5EuV
2026-11-10 18:47:09 +00:00
parent 68da642f9a
commit 0006167c24
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+#!/usr/bin/env bash
+# Regenerates every file in output/. Needs JDK 25, Maven, curl, python3.
+# Session ids and request ids in the wire transcripts differ on every run; everything else is stable
+# except the one timing line in 07, which is indicative only.
+set -eu
+cd "$(dirname "$0")/.."
+
+# 1-8: the JUnit tests write output/01..08 themselves (the assertions and the transcripts are the same code)
+mvn -B -q test 2>&1 | tee /tmp/mcp-advanced-test.log | grep -E 'Tests run:|BUILD|ERROR' || true
+
+# 9: the one WARN the stateless server logs while it silently drops the tools
+{
+  echo "# log line from the STATELESS test run (spring.ai.mcp.server.protocol=STATELESS)"
+  grep 'Stateless servers' /tmp/mcp-advanced-test.log | sed -E 's/^.*(McpPredicates)/\1/'
+} > output/09-stateless-warning.txt
+
+# 10-11: raw JSON-RPC with curl as the client
+mvn -B -q package -DskipTests
+bash scripts/wire-demo.sh