[pitboss] phase 14: Track B — Java harness emitter shapes

tests/dynamic_fixtures/java/spring_controller/CommandRunner.java

@@ -0,0 +1,26 @@
+// Phase 14 fixture stub — Spring-injected helper service.
+// The fixture's controller declares `@Autowired CommandRunner runner;`
+// so the harness exercises the Phase 09 import-extraction path
+// (`@Autowired` is the marker that flags `org.springframework` as a
+// transitive dep).  At runtime the harness instantiates the controller
+// via reflection's default ctor — the @Autowired field stays null
+// because there is no Spring container; the controller's handler
+// guards against null and constructs a fresh CommandRunner on demand.
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
+public class CommandRunner {
+    public String run(String cmd) throws Exception {
+        Process p = Runtime.getRuntime().exec(new String[] {"/bin/sh", "-c", cmd});
+        BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
+        StringBuilder out = new StringBuilder();
+        String line;
+        while ((line = reader.readLine()) != null) {
+            out.append(line);
+            out.append('\n');
+        }
+        p.waitFor();
+        return out.toString();
+    }
+}