Add Reverse Connect support

.claude/docs/testing.md

@@ -26,6 +26,43 @@ mvn -q -pl opc-ua-stack/stack-core test -Dtest=*ServiceTest
 Most tests live in `opc-ua-sdk/integration-tests`, `opc-ua-stack/stack-core`, and
 `opc-ua-sdk/sdk-server`.
 
+## Module Targeting Flags
+
+- **`-pl <module>`** — build/test only the specified module(s)
+- **`-am`** (also-make) — also build modules that the `-pl` target depends on
+- **`-amd`** (also-make-dependents) — also build modules that depend on the `-pl` target
+
+### When to use each
+
+**`-pl` alone** — the change is entirely within the module being tested:
+
+```bash
+# Changed and testing sdk-server only
+mvn -q -pl opc-ua-sdk/sdk-server test -Dtest=ClassName
+```
+
+**`-pl ... -am`** — the change is in a dependency of the module being tested. This
+rebuilds the dependency chain so tests run against the latest code:
+
+```bash
+# Changed stack-core, running integration-tests
+mvn -q -pl opc-ua-sdk/integration-tests -am test -Dtest=ClassName
+```
+
+**`-pl ... -amd`** — the change is in a low-level module and you want to test all modules
+that depend on it:
+
+```bash
+# Changed stack-core, run tests in stack-core and everything that depends on it
+mvn -q -pl opc-ua-stack/stack-core -amd test
+```
+
+### Rule of thumb
+
+If the code you changed and the tests you're running are in **different modules**, add
+`-am` so the changed module gets rebuilt. Omitting `-am` in this case means tests run
+against stale (previously compiled) code.
+
 ## Run All Tests
 
 ```bash

.gitignore

@@ -34,3 +34,6 @@ CLAUDE.local.md
 
 # External src and other files
 external/
+
+# Claude project MCP configuration
+.mcp.json

AGENTS.md

@@ -25,7 +25,8 @@ SDK for building OPC UA applications.
 | `mvn -q clean verify`   | Full build with tests and formatting check |
 | `mvn -q spotless:apply` | Fix code formatting issues                 |
 
-For running specific tests and module targeting, see `.claude/docs/testing.md`.
+Before running any tests, read `.claude/docs/testing.md` for module targeting flags and
+test patterns.
 
 ## Additional Resources