langtools/test/tools/javac/QualifiedThisExactMatch.java
changeset 10 06bc494ca11e
child 5520 86e4b9a9da40
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/QualifiedThisExactMatch.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,81 @@
+/*
+ * Copyright 1998 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 4102393 4133457
+ * @summary Verify that <class>.this  matches <class> exactly, not a subclass.
+ * @author maddox
+ *
+ * @run compile QualifiedThisExactMatch.java
+ * @run main QualifiedThisExactMatch
+ */
+
+public class QualifiedThisExactMatch {
+
+    void test() throws Exception {}
+
+    void checkIt1() throws Exception {
+        QualifiedThisExactMatch z = new QualifiedThisExactMatch() {
+            void test() throws Exception {
+                if (this == QualifiedThisExactMatch.this) {
+                    throw new Exception("anonymous");
+                }
+            }
+        };
+        z.test();
+    }
+
+    //---
+
+    class A  {
+        Object getThisA() { return A.this; }
+        class B extends A {
+            Object getThisA() { return A.this; }
+            Object getThisB() { return B.this; }
+        }
+    }
+
+    void check(Object x, Object y) throws Exception {
+        if (x != y) {
+            throw new Exception("named");
+        }
+    }
+
+    void checkIt2 () throws Exception {
+        A a = new A();
+        A.B b = a.new B();
+
+        check(a, a.getThisA());
+        check(a, b.getThisA());
+        check(b, b.getThisB());
+    }
+
+    //---
+
+    public static void main(String[] s) throws Exception {
+        QualifiedThisExactMatch x = new QualifiedThisExactMatch();
+        x.checkIt1();
+        x.checkIt2();
+    }
+}