diff --git a/examples/ffi-jni-class-08-call.sx b/examples/ffi-jni-class-08-call.sx
new file mode 100644
index 0000000..dd1fefa
--- /dev/null
+++ b/examples/ffi-jni-class-08-call.sx
@@ -0,0 +1,31 @@
+// Phase 2 step 2.11 (PLAN-FFI.md): xfail then green for DSL call-site
+// lowering — `inst.method(args)` on a `#jni_class`-typed value lowers
+// to `#jni_call(T)(inst, "method", "(sig)Ret", args...)` with the
+// descriptor auto-derived from the sx signature.
+//
+// `#jni_env(env)` brings env into lexical scope; the omitted-env
+// `#jni_call` form (2.16b) picks it up directly.
+
+#import "modules/std.sx";
+
+Activity :: #jni_class("android/app/Activity") {
+    getWindow :: (self: *Self) -> *void;
+}
+
+g_should_call : bool = false;
+
+unused_jni :: (env: *void, act: *Activity) {
+    #jni_env(env) {
+        // Today: this fails — sema doesn't know `Activity` as a type, or
+        // the method dispatch doesn't recognize foreign-class members.
+        win := act.getWindow();
+    }
+}
+
+main :: () -> s32 {
+    if g_should_call {
+        unused_jni(null, null);
+    }
+    print("ok\n");
+    0;
+}
diff --git a/tests/expected/ffi-jni-class-08-call.exit b/tests/expected/ffi-jni-class-08-call.exit
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/tests/expected/ffi-jni-class-08-call.exit
@@ -0,0 +1 @@
+1
diff --git a/tests/expected/ffi-jni-class-08-call.txt b/tests/expected/ffi-jni-class-08-call.txt
new file mode 100644
index 0000000..b09005d
--- /dev/null
+++ b/tests/expected/ffi-jni-class-08-call.txt
@@ -0,0 +1 @@
+/Users/agra/projects/sx/examples/ffi-jni-class-08-call.sx:21:16: error: unresolved: 'getWindow'