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  */
  23 
  24 /**
  25  * Check behavior of class-level overrides.
  26  *
  27  * @test
  28  * @run
  29  */
  30 
  31 
  32 // Make two classes with class overrides
  33 
  34 var R1 = Java.extend(java.lang.Runnable, {
  35     run: function() {
  36         print("R1.run() invoked")
  37     }
  38 })
  39 
  40 var R2 = Java.extend(java.lang.Runnable, {
  41     run: function() {
  42         print("R2.run() invoked")
  43     }
  44 })
  45 
  46 var r1 = new R1
  47 var r2 = new R2
  48 // Create one with an instance-override too
  49 var R3 = Java.extend(R2)
  50 var r3 = new R3({ run: function() { print("r3.run() invoked") }})
  51 
  52 // Run 'em - we're passing them through a Thread to make sure they indeed
  53 // are full-blown Runnables
  54 function runInThread(r) {
  55     var t = new java.lang.Thread(r)
  56     t.start()
  57     t.join()
  58 }
  59 runInThread(r1)
  60 runInThread(r2)
  61 runInThread(r3)
  62 
  63 // Two class-override classes differ
  64 print("r1.class !== r2.class: " + (r1.class !== r2.class))
  65 // instance-override class also differs
  66 print("r2.class !== r3.class: " + (r2.class !== r3.class))
  67 
  68 function checkAbstract(r) {
  69     try {
  70         r.run()
  71         print("Expected to fail!")
  72     } catch(e) {
  73         print("Got exception: " + e)
  74     }
  75 }
  76 
  77 // Check we're hitting UnsupportedOperationException if neither class
  78 // overrides nor instance overrides are present
  79 var RAbstract = Java.extend(java.lang.Runnable, {})
  80 checkAbstract(new RAbstract()) // class override (empty)
  81 checkAbstract(new (Java.extend(RAbstract))() {}) // class+instance override (empty)
  82 
  83 // Check we delegate to superclass if neither class
  84 // overrides nor instance overrides are present
  85 var ExtendsList = Java.extend(java.util.ArrayList, {})
  86 print("(new ExtendsList).size() = " + (new ExtendsList).size())
  87 print("(new (Java.extend(ExtendsList)){}).size() = " + (new (Java.extend(ExtendsList)){}).size())