Tue, 01 Sep 2015 18:28:11 +0530
8068901: Surprising behavior with more than one functional interface on a class
8068903: Can't invoke vararg @FunctionalInterface methods
Reviewed-by: attila, hannesw
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 * JDK-8023373: allow super invocation for adapters
26 *
27 * @test
28 * @run
29 */
31 var CharArray = Java.type("char[]")
32 var jString = Java.type("java.lang.String")
33 var Character = Java.type("java.lang.Character")
35 function capitalize(s) {
36 if(s instanceof CharArray) {
37 return new jString(s).toUpperCase()
38 }
39 if(s instanceof jString) {
40 return s.toUpperCase()
41 }
42 return Character.toUpperCase(s) // must be int
43 }
45 var sw = new (Java.type("java.io.StringWriter"))
47 var FilterWriterAdapter = Java.extend(Java.type("java.io.FilterWriter"))
49 var cw = new FilterWriterAdapter(sw) {
50 write: function(s, off, len) {
51 s = capitalize(s)
52 // Must handle overloads by arity
53 if(off === undefined) {
54 cw.super$write(s, 0, s.length())
55 } else if (typeof s === "string") {
56 cw.super$write(s, off, len)
57 }
58 }
59 }
61 cw.write("abcd")
62 cw.write("e".charAt(0))
63 cw.write("fgh".toCharArray())
64 cw.write("**ijk**", 2, 3)
65 cw.write("***lmno**".toCharArray(), 3, 4)
66 cw.flush()
67 print(sw)
69 // Can invoke super for Object methods
70 print("cw has super hashCode(): " + (typeof cw.super$hashCode === "function"))
71 print("cw has super equals(): " + (typeof cw.super$equals === "function"))
72 // Can't invoke super for final methods
73 print("cw has no super getClass(): " + (typeof cw.super$getClass === "undefined"))
74 print("cw has no super wait(): " + (typeof cw.super$wait === "undefined"))
76 var r = new (Java.type("java.lang.Runnable"))(function() {})
77 // Can't invoke super for abstract methods
78 print("r has no super run(): " + (typeof r.super$run === "undefined"))
79 // Interfaces can also invoke super Object methods
80 print("r has super hashCode(): " + (typeof r.super$hashCode === "function"))
81 print("r has super equals(): " + (typeof r.super$equals === "function"))
82 // But still can't invoke final methods
83 print("r has no super getClass(): " + (typeof r.super$getClass === "undefined"))
84 print("r has no super wait(): " + (typeof r.super$wait === "undefined"))