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

tests/dynamic_fixtures/java/static_method/Vuln.java

@@ -0,0 +1,21 @@
+// Phase 14 — plain static method, vulnerable.
+//
+// JDK-only.  Passes user input through `/bin/sh -c` so a `;` in the
+// payload escapes into a new command (CMDI oracle marker fires).
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
+public class Vuln {
+    public static void processInput(String input) throws Exception {
+        System.out.print("__NYX_SINK_HIT__\n");
+        String[] cmd = {"/bin/sh", "-c", "echo hello " + input};
+        Process p = Runtime.getRuntime().exec(cmd);
+        BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
+        String line;
+        while ((line = reader.readLine()) != null) {
+            System.out.println(line);
+        }
+        p.waitFor();
+    }
+}