--- /dev/null	2009-08-12 17:12:33.000000000 -0700
+++ new/test/tools/javac/TryWithResources/TwrOnNonResource.java	2010-07-16 19:34:29.000000000 -0700
@@ -0,0 +1,42 @@
+/*
+ * @test  /nodynamiccopyright/
+ * @bug 6911256 6964740
+ * @author Joseph D. Darcy
+ * @summary Verify invalid TWR block is not accepted.
+ * @compile/fail -source 6 TwrOnNonResource.java
+ * @compile/fail/ref=TwrOnNonResource.out -XDrawDiagnostics TwrOnNonResource.java
+ */
+
+class TwrOnNonResource {
+    public static void main(String... args) {
+        try(TwrOnNonResource aonr = new TwrOnNonResource()) {
+            System.out.println(aonr.toString());
+        }
+        try(TwrOnNonResource aonr = new TwrOnNonResource()) {
+            System.out.println(aonr.toString());
+        } finally {;}
+        try(TwrOnNonResource aonr = new TwrOnNonResource()) {
+            System.out.println(aonr.toString());
+        } catch (Exception e) {;}
+
+        // Also check expression form
+        TwrOnNonResource aonr = new TwrOnNonResource();
+        try(aonr) {
+            System.out.println(aonr.toString());
+        }
+        try(aonr) {
+            System.out.println(aonr.toString());
+        } finally {;}
+        try(aonr) {
+            System.out.println(aonr.toString());
+        } catch (Exception e) {;}
+    }
+
+    /*
+     * A close method, but the class is <em>not</em> Closeable or
+     * AutoCloseable.
+     */
+    public void close() {
+        throw new AssertionError("I'm not Closable!");
+    }
+}