Wed, 15 May 2013 20:21:59 +0200
8014647: Allow class-based overrides to be initialized with a ScriptFunction
Reviewed-by: hannesw, jlaskey, sundar
1 /*
2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
24 /**
25 * Check behavior of class-level overrides.
26 *
27 * @test
28 * @run
29 */
32 // Make two classes with class overrides
34 var R1 = Java.extend(java.lang.Runnable, {
35 run: function() {
36 print("R1.run() invoked")
37 }
38 })
40 var R2 = Java.extend(java.lang.Runnable, {
41 run: function() {
42 print("R2.run() invoked")
43 }
44 })
46 var r1 = new R1
47 var r2 = new R2
48 // Create one with an instance-override too
49 var r3 = new R2(function() { print("r3.run() invoked") })
51 // Run 'em - we're passing them through a Thread to make sure they indeed
52 // are full-blown Runnables
53 function runInThread(r) {
54 var t = new java.lang.Thread(r)
55 t.start()
56 t.join()
57 }
58 runInThread(r1)
59 runInThread(r2)
60 runInThread(r3)
62 // Two class-override classes differ
63 print("r1.class != r2.class: " + (r1.class != r2.class))
64 // However, adding instance-overrides doesn't change the class
65 print("r2.class == r3.class: " + (r2.class == r3.class))
67 function checkAbstract(r) {
68 try {
69 r.run()
70 print("Expected to fail!")
71 } catch(e) {
72 print("Got exception: " + e)
73 }
74 }
76 // Check we're hitting UnsupportedOperationException if neither class
77 // overrides nor instance overrides are present
78 var RAbstract = Java.extend(java.lang.Runnable, {})
79 checkAbstract(new RAbstract()) // class override (empty)
80 checkAbstract(new RAbstract() {}) // class+instance override (empty)
82 // Check we delegate to superclass if neither class
83 // overrides nor instance overrides are present
84 var ExtendsList = Java.extend(java.util.ArrayList, {})
85 print("(new ExtendsList).size() = " + (new ExtendsList).size())
86 print("(new ExtendsList(){}).size() = " + (new ExtendsList(){}).size())