aoqi@0: /*
aoqi@0:  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package org.openjdk.tests.vm;
aoqi@0: 
aoqi@0: import org.openjdk.tests.separate.Compiler;
aoqi@0: import org.openjdk.tests.separate.TestHarness;
aoqi@0: import org.testng.annotations.Test;
aoqi@0: 
aoqi@0: import static org.openjdk.tests.separate.SourceModel.AbstractMethod;
aoqi@0: import static org.openjdk.tests.separate.SourceModel.AccessFlag;
aoqi@0: import static org.openjdk.tests.separate.SourceModel.Class;
aoqi@0: import static org.openjdk.tests.separate.SourceModel.ConcreteMethod;
aoqi@0: import static org.openjdk.tests.separate.SourceModel.DefaultMethod;
aoqi@0: import static org.openjdk.tests.separate.SourceModel.Extends;
aoqi@0: import static org.openjdk.tests.separate.SourceModel.Interface;
aoqi@0: import static org.openjdk.tests.separate.SourceModel.MethodParameter;
aoqi@0: import static org.openjdk.tests.separate.SourceModel.TypeParameter;
aoqi@0: import static org.testng.Assert.assertEquals;
aoqi@0: import static org.testng.Assert.assertNotNull;
aoqi@0: import static org.testng.Assert.fail;
aoqi@0: 
aoqi@0: @Test(groups = "vm")
aoqi@0: public class DefaultMethodsTest extends TestHarness {
aoqi@0:     public DefaultMethodsTest() {
aoqi@0:         super(false, false);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * class C { public int m() { return 22; } }
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 22
aoqi@0:      */
aoqi@0:     public void testHarnessInvokeVirtual() {
aoqi@0:         Class C = new Class("C", ConcreteMethod.std("22"));
aoqi@0:         assertInvokeVirtualEquals(22, C);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { int m(); }
aoqi@0:      * class C implements I { public int m() { return 33; } }
aoqi@0:      *
aoqi@0:      * TEST: I i = new C(); i.m() == 33;
aoqi@0:      */
aoqi@0:     public void testHarnessInvokeInterface() {
aoqi@0:         Interface I = new Interface("I", AbstractMethod.std());
aoqi@0:         Class C = new Class("C", I, ConcreteMethod.std("33"));
aoqi@0:         assertInvokeInterfaceEquals(33, C, I);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * class C {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() throws NoSuchMethod
aoqi@0:      */
aoqi@0:     public void testHarnessThrows() {
aoqi@0:         Class C = new Class("C");
aoqi@0:         assertThrows(NoSuchMethodError.class, C);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { int m() default { return 44; } }
aoqi@0:      * class C implements I {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 44;
aoqi@0:      * TEST: I i = new C(); i.m() == 44;
aoqi@0:      */
aoqi@0:     public void testBasicDefault() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("44"));
aoqi@0:         Class C = new Class("C", I);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(44, C);
aoqi@0:         assertInvokeInterfaceEquals(44, C, I);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 44; } }
aoqi@0:      * interface J extends I {}
aoqi@0:      * interface K extends J {}
aoqi@0:      * class C implements K {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 44;
aoqi@0:      * TEST: I i = new C(); i.m() == 44;
aoqi@0:      */
aoqi@0:     public void testFarDefault() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("44"));
aoqi@0:         Interface J = new Interface("J", I);
aoqi@0:         Interface K = new Interface("K", J);
aoqi@0:         Class C = new Class("C", K);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(44, C);
aoqi@0:         assertInvokeInterfaceEquals(44, C, K);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { int m(); }
aoqi@0:      * interface J extends I { default int m() { return 44; } }
aoqi@0:      * interface K extends J {}
aoqi@0:      * class C implements K {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 44;
aoqi@0:      * TEST: K k = new C(); k.m() == 44;
aoqi@0:      */
aoqi@0:     public void testOverrideAbstract() {
aoqi@0:         Interface I = new Interface("I", AbstractMethod.std());
aoqi@0:         Interface J = new Interface("J", I, DefaultMethod.std("44"));
aoqi@0:         Interface K = new Interface("K", J);
aoqi@0:         Class C = new Class("C", K);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(44, C);
aoqi@0:         assertInvokeInterfaceEquals(44, C, K);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { int m() default { return 44; } }
aoqi@0:      * class C implements I { public int m() { return 55; } }
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 55;
aoqi@0:      * TEST: I i = new C(); i.m() == 55;
aoqi@0:      */
aoqi@0:     public void testExisting() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("44"));
aoqi@0:         Class C = new Class("C", I, ConcreteMethod.std("55"));
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(55, C);
aoqi@0:         assertInvokeInterfaceEquals(55, C, I);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 99; } }
aoqi@0:      * class B implements I {}
aoqi@0:      * class C extends B {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 99;
aoqi@0:      * TEST: I i = new C(); i.m() == 99;
aoqi@0:      */
aoqi@0:     public void testInherited() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("99"));
aoqi@0:         Class B = new Class("B", I);
aoqi@0:         Class C = new Class("C", B);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(99, C);
aoqi@0:         assertInvokeInterfaceEquals(99, C, I);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 99; } }
aoqi@0:      * class C { public int m() { return 11; } }
aoqi@0:      * class D extends C implements I {}
aoqi@0:      *
aoqi@0:      * TEST: D d = new D(); d.m() == 11;
aoqi@0:      * TEST: I i = new D(); i.m() == 11;
aoqi@0:      */
aoqi@0:     public void testExistingInherited() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("99"));
aoqi@0:         Class C = new Class("C", ConcreteMethod.std("11"));
aoqi@0:         Class D = new Class("D", C, I);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(11, D);
aoqi@0:         assertInvokeInterfaceEquals(11, D, I);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 44; } }
aoqi@0:      * class C implements I { public int m() { return 11; } }
aoqi@0:      * class D extends C { public int m() { return 22; } }
aoqi@0:      *
aoqi@0:      * TEST: D d = new D(); d.m() == 22;
aoqi@0:      * TEST: I i = new D(); i.m() == 22;
aoqi@0:      */
aoqi@0:     public void testExistingInheritedOverride() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("99"));
aoqi@0:         Class C = new Class("C", I, ConcreteMethod.std("11"));
aoqi@0:         Class D = new Class("D", C, ConcreteMethod.std("22"));
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(22, D);
aoqi@0:         assertInvokeInterfaceEquals(22, D, I);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 99; } }
aoqi@0:      * interface J { defaultint m() { return 88; } }
aoqi@0:      * class C implements I { public int m() { return 11; } }
aoqi@0:      * class D extends C { public int m() { return 22; } }
aoqi@0:      * class E extends D implements J {}
aoqi@0:      *
aoqi@0:      * TEST: E e = new E(); e.m() == 22;
aoqi@0:      * TEST: J j = new E(); j.m() == 22;
aoqi@0:      */
aoqi@0:     public void testExistingInheritedPlusDefault() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("99"));
aoqi@0:         Interface J = new Interface("J", DefaultMethod.std("88"));
aoqi@0:         Class C = new Class("C", I, ConcreteMethod.std("11"));
aoqi@0:         Class D = new Class("D", C, ConcreteMethod.std("22"));
aoqi@0:         Class E = new Class("E", D, J);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(22, E);
aoqi@0:         assertInvokeInterfaceEquals(22, E, J);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 99; } }
aoqi@0:      * class B implements I {}
aoqi@0:      * class C extends B { public int m() { return 77; } }
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 77;
aoqi@0:      * TEST: I i = new C(); i.m() == 77;
aoqi@0:      */
aoqi@0:     public void testInheritedWithConcrete() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("99"));
aoqi@0:         Class B = new Class("B", I);
aoqi@0:         Class C = new Class("C", B, ConcreteMethod.std("77"));
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(77, C);
aoqi@0:         assertInvokeInterfaceEquals(77, C, I);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 99; } }
aoqi@0:      * class B implements I {}
aoqi@0:      * class C extends B implements I { public int m() { return 66; } }
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 66;
aoqi@0:      * TEST: I i = new C(); i.m() == 66;
aoqi@0:      */
aoqi@0:     public void testInheritedWithConcreteAndImpl() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("99"));
aoqi@0:         Class B = new Class("B", I);
aoqi@0:         Class C = new Class("C", B, I, ConcreteMethod.std("66"));
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(66, C);
aoqi@0:         assertInvokeInterfaceEquals(66, C, I);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 99; } }
aoqi@0:      * interface J { default int m() { return 88; } }
aoqi@0:      * class C implements I, J {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() throws ICCE
aoqi@0:      */
aoqi@0:     public void testConflict() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("99"));
aoqi@0:         Interface J = new Interface("J", DefaultMethod.std("88"));
aoqi@0:         Class C = new Class("C", I, J);
aoqi@0: 
aoqi@0:         assertThrows(IncompatibleClassChangeError.class, C);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { int m(); }
aoqi@0:      * interface J { default int m() { return 88; } }
aoqi@0:      * class C implements I, J {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 88
aoqi@0:      */
aoqi@0:     public void testAmbiguousReabstract() {
aoqi@0:         Interface I = new Interface("I", AbstractMethod.std());
aoqi@0:         Interface J = new Interface("J", DefaultMethod.std("88"));
aoqi@0:         Class C = new Class("C", I, J);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(88, C);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 99; } }
aoqi@0:      * interface J extends I { }
aoqi@0:      * interface K extends I { }
aoqi@0:      * class C implements J, K {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 99
aoqi@0:      * TEST: J j = new C(); j.m() == 99
aoqi@0:      * TEST: K k = new C(); k.m() == 99
aoqi@0:      * TEST: I i = new C(); i.m() == 99
aoqi@0:      */
aoqi@0:     public void testDiamond() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("99"));
aoqi@0:         Interface J = new Interface("J", I);
aoqi@0:         Interface K = new Interface("K", I);
aoqi@0:         Class C = new Class("C", J, K);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(99, C);
aoqi@0:         assertInvokeInterfaceEquals(99, C, J);
aoqi@0:         assertInvokeInterfaceEquals(99, C, K);
aoqi@0:         assertInvokeInterfaceEquals(99, C, I);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 99; } }
aoqi@0:      * interface J extends I { }
aoqi@0:      * interface K extends I { }
aoqi@0:      * interface L extends I { }
aoqi@0:      * interface M extends I { }
aoqi@0:      * class C implements I, J, K, L, M {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 99
aoqi@0:      * TEST: J j = new C(); j.m() == 99
aoqi@0:      * TEST: K k = new C(); k.m() == 99
aoqi@0:      * TEST: I i = new C(); i.m() == 99
aoqi@0:      * TEST: L l = new C(); l.m() == 99
aoqi@0:      * TEST: M m = new C(); m.m() == 99
aoqi@0:      */
aoqi@0:     public void testExpandedDiamond() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("99"));
aoqi@0:         Interface J = new Interface("J", I);
aoqi@0:         Interface K = new Interface("K", I);
aoqi@0:         Interface L = new Interface("L", I);
aoqi@0:         Interface M = new Interface("M", L);
aoqi@0:         Class C = new Class("C", I, J, K, L, M);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(99, C);
aoqi@0:         assertInvokeInterfaceEquals(99, C, J);
aoqi@0:         assertInvokeInterfaceEquals(99, C, K);
aoqi@0:         assertInvokeInterfaceEquals(99, C, I);
aoqi@0:         assertInvokeInterfaceEquals(99, C, L);
aoqi@0:         assertInvokeInterfaceEquals(99, C, M);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { int m() default { return 99; } }
aoqi@0:      * interface J extends I { int m(); }
aoqi@0:      * class C implements J {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() throws AME
aoqi@0:      */
aoqi@0:     public void testReabstract() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("99"));
aoqi@0:         Interface J = new Interface("J", I, AbstractMethod.std());
aoqi@0:         Class C = new Class("C", J);
aoqi@0: 
aoqi@0:         assertThrows(AbstractMethodError.class, C);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 88; } }
aoqi@0:      * interface J extends I { default int m() { return 99; } }
aoqi@0:      * class C implements J {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 99;
aoqi@0:      * TEST: J j = new C(); j.m() == 99;
aoqi@0:      * TEST: I i = new C(); i.m() == 99;
aoqi@0:      */
aoqi@0:     public void testShadow() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("88"));
aoqi@0:         Interface J = new Interface("J", I, DefaultMethod.std("99"));
aoqi@0:         Class C = new Class("C", J);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(99, C);
aoqi@0:         assertInvokeInterfaceEquals(99, C, J);
aoqi@0:         assertInvokeInterfaceEquals(99, C, I);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 88; } }
aoqi@0:      * interface J extends I { default int m() { return 99; } }
aoqi@0:      * class C implements I, J {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 99;
aoqi@0:      * TEST: J j = new C(); j.m() == 99;
aoqi@0:      * TEST: I i = new C(); i.m() == 99;
aoqi@0:      */
aoqi@0:     public void testDisqualified() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("88"));
aoqi@0:         Interface J = new Interface("J", I, DefaultMethod.std("99"));
aoqi@0:         Class C = new Class("C", I, J);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(99, C);
aoqi@0:         assertInvokeInterfaceEquals(99, C, J);
aoqi@0:         assertInvokeInterfaceEquals(99, C, I);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I<T> { default int m(T t) { return 99; } }
aoqi@0:      * Class C implements I<String> { public int m(String s) { return 88; } }
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m("string") == 88;
aoqi@0:      * TEST: I i = new C(); i.m("string") == 88;
aoqi@0:      */
aoqi@0:     public void testSelfFill() {
aoqi@0:         // This test ensures that a concrete method overrides a default method
aoqi@0:         // that matches at the language-level, but has a different method
aoqi@0:         // signature due to erasure.
aoqi@0: 
aoqi@0:         DefaultMethod dm = new DefaultMethod(
aoqi@0:             "int", "m", "return 99;", new MethodParameter("T", "t"));
aoqi@0:         ConcreteMethod cm = new ConcreteMethod(
aoqi@0:             "int", "m", "return 88;", AccessFlag.PUBLIC,
aoqi@0:             new MethodParameter("String", "s"));
aoqi@0: 
aoqi@0:         Interface I = new Interface("I", new TypeParameter("T"), dm);
aoqi@0:         Class C = new Class("C", I.with("String"), cm);
aoqi@0: 
aoqi@0:         AbstractMethod pm = new AbstractMethod(
aoqi@0:             "int", "m", new MethodParameter("T", "t"));
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(88, C, cm, "-1", "\"string\"");
aoqi@0:         assertInvokeInterfaceEquals(99, C, I.with("String"), pm, "\"string\"");
aoqi@0: 
aoqi@0:         C.setFullCompilation(true); // Force full bridge generation
aoqi@0:         assertInvokeInterfaceEquals(88, C, I.with("String"), pm, "\"string\"");
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 99; } }
aoqi@0:      * class C implements I {}
aoqi@0:      *
aoqi@0:      * TEST: C.class.getMethod("m").invoke(new C()) == 99
aoqi@0:      */
aoqi@0:     public void testReflectCall() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("99"));
aoqi@0:         //workaround accessibility issue when loading C with DirectedClassLoader
aoqi@0:         I.addAccessFlag(AccessFlag.PUBLIC);
aoqi@0:         Class C = new Class("C", I);
aoqi@0: 
aoqi@0:         Compiler.Flags[] flags = this.verbose ?
aoqi@0:             new Compiler.Flags[] { Compiler.Flags.VERBOSE } :
aoqi@0:             new Compiler.Flags[] {};
aoqi@0:         Compiler compiler = new Compiler(flags);
aoqi@0:         java.lang.Class<?> cls = null;
aoqi@0:         try {
aoqi@0:             cls = compiler.compileAndLoad(C);
aoqi@0:         } catch (ClassNotFoundException e) {
aoqi@0:             fail("Could not load class");
aoqi@0:         }
aoqi@0: 
aoqi@0:         java.lang.reflect.Method method = null;
aoqi@0:         try {
aoqi@0:             method = cls.getMethod(stdMethodName);
aoqi@0:         } catch (NoSuchMethodException e) {
aoqi@0:             fail("Could not find method in class");
aoqi@0:         }
aoqi@0:         assertNotNull(method);
aoqi@0: 
aoqi@0:         Object c = null;
aoqi@0:         try {
aoqi@0:             c = cls.newInstance();
aoqi@0:         } catch (InstantiationException | IllegalAccessException e) {
aoqi@0:             fail("Could not create instance of class");
aoqi@0:         }
aoqi@0:         assertNotNull(c);
aoqi@0: 
aoqi@0:         Integer res = null;
aoqi@0:         try {
aoqi@0:             res = (Integer)method.invoke(c);
aoqi@0:         } catch (IllegalAccessException |
aoqi@0:                  java.lang.reflect.InvocationTargetException e) {
aoqi@0:             fail("Could not invoke default instance method");
aoqi@0:         }
aoqi@0:         assertNotNull(res);
aoqi@0: 
aoqi@0:         assertEquals(res.intValue(), 99);
aoqi@0: 
aoqi@0:         compiler.cleanup();
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I<T,V,W> { default int m(T t, V v, W w) { return 99; } }
aoqi@0:      * interface J<T,V> extends I<String,T,V> { int m(T t, V v, String w); } }
aoqi@0:      * interface K<T> extends J<String,T> { int m(T t, String v, String w); } }
aoqi@0:      * class C implements K<String> {
aoqi@0:      *     public int m(String t, String v, String w) { return 88; }
aoqi@0:      * }
aoqi@0:      *
aoqi@0:      * TEST: I<String,String,String> i = new C(); i.m("A","B","C") == 88;
aoqi@0:      * TEST: J<String,String> j = new C(); j.m("A","B","C") == 88;
aoqi@0:      * TEST: K<String> k = new C(); k.m("A","B","C") == 88;
aoqi@0:      */
aoqi@0:     public void testBridges() {
aoqi@0:         DefaultMethod dm = new DefaultMethod("int", stdMethodName, "return 99;",
aoqi@0:             new MethodParameter("T", "t"), new MethodParameter("V", "v"),
aoqi@0:             new MethodParameter("W", "w"));
aoqi@0: 
aoqi@0:         AbstractMethod pm0 = new AbstractMethod("int", stdMethodName,
aoqi@0:             new MethodParameter("T", "t"), new MethodParameter("V", "v"),
aoqi@0:             new MethodParameter("W", "w"));
aoqi@0: 
aoqi@0:         AbstractMethod pm1 = new AbstractMethod("int", stdMethodName,
aoqi@0:             new MethodParameter("T", "t"), new MethodParameter("V", "v"),
aoqi@0:             new MethodParameter("String", "w"));
aoqi@0: 
aoqi@0:         AbstractMethod pm2 = new AbstractMethod("int", stdMethodName,
aoqi@0:             new MethodParameter("T", "t"), new MethodParameter("String", "v"),
aoqi@0:             new MethodParameter("String", "w"));
aoqi@0: 
aoqi@0:         ConcreteMethod cm = new ConcreteMethod("int",stdMethodName,"return 88;",
aoqi@0:             AccessFlag.PUBLIC,
aoqi@0:             new MethodParameter("String", "t"),
aoqi@0:             new MethodParameter("String", "v"),
aoqi@0:             new MethodParameter("String", "w"));
aoqi@0: 
aoqi@0:         Interface I = new Interface("I", new TypeParameter("T"),
aoqi@0:             new TypeParameter("V"), new TypeParameter("W"), dm);
aoqi@0:         Interface J = new Interface("J",
aoqi@0:             new TypeParameter("T"), new TypeParameter("V"),
aoqi@0:             I.with("String", "T", "V"), pm1);
aoqi@0:         Interface K = new Interface("K", new TypeParameter("T"),
aoqi@0:             J.with("String", "T"), pm2);
aoqi@0:         Class C = new Class("C", K.with("String"), cm);
aoqi@0: 
aoqi@0:         // First, without compiler bridges
aoqi@0:         String[] args = new String[] { "\"A\"", "\"B\"", "\"C\"" };
aoqi@0:         assertInvokeInterfaceEquals(99, C, I.with("String", "String", "String"), pm0, args);
aoqi@0:         assertInvokeInterfaceThrows(AbstractMethodError.class, C, J.with("String", "String"), pm1, args);
aoqi@0:         assertInvokeInterfaceThrows(AbstractMethodError.class, C, K.with("String"), pm2, args);
aoqi@0: 
aoqi@0:         // Then with compiler bridges
aoqi@0:         C.setFullCompilation(true);
aoqi@0:         assertInvokeInterfaceEquals(88, C, I.with("String", "String", "String"), pm0, args);
aoqi@0:         assertInvokeInterfaceEquals(88, C, J.with("String", "String"), pm1, args);
aoqi@0:         assertInvokeInterfaceEquals(88, C, K.with("String"), pm2, args);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface J { default int m() { return 88; } }
aoqi@0:      * interface I extends J { default int m() { return J.super.m(); } }
aoqi@0:      * class C implements I {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 88;
aoqi@0:      * TEST: I i = new C(); i.m() == 88;
aoqi@0:      */
aoqi@0:     public void testSuperBasic() {
aoqi@0:         Interface J = new Interface("J", DefaultMethod.std("88"));
aoqi@0:         Interface I = new Interface("I", J, new DefaultMethod(
aoqi@0:             "int", stdMethodName, "return J.super.m();"));
aoqi@0:         I.addCompilationDependency(J.findMethod(stdMethodName));
aoqi@0:         Class C = new Class("C", I);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(88, C);
aoqi@0:         assertInvokeInterfaceEquals(88, C, I);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface K { int m() default { return 99; } }
aoqi@0:      * interface L { int m() default { return 101; } }
aoqi@0:      * interface J extends K, L {}
aoqi@0:      * interface I extends J, K { int m() default { J.super.m(); } }
aoqi@0:      * class C implements I {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() throws ICCE
aoqi@0:      * TODO: add case for K k = new C(); k.m() throws ICCE
aoqi@0:      */
aoqi@0:     public void testSuperConflict() {
aoqi@0:         Interface K = new Interface("K", DefaultMethod.std("99"));
aoqi@0:         Interface L = new Interface("L", DefaultMethod.std("101"));
aoqi@0:         Interface J = new Interface("J", K, L);
aoqi@0:         Interface I = new Interface("I", J, K, new DefaultMethod(
aoqi@0:             "int", stdMethodName, "return J.super.m();"));
aoqi@0:         Interface Jstub = new Interface("J", DefaultMethod.std("-1"));
aoqi@0:         I.addCompilationDependency(Jstub);
aoqi@0:         I.addCompilationDependency(Jstub.findMethod(stdMethodName));
aoqi@0:         Class C = new Class("C", I);
aoqi@0: 
aoqi@0:         assertThrows(IncompatibleClassChangeError.class, C);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default int m() { return 99; } }
aoqi@0:      * interface J extends I { default int m() { return 55; } }
aoqi@0:      * class C implements I, J { public int m() { return I.super.m(); } }
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() == 99
aoqi@0:      * TODO: add case for J j = new C(); j.m() == ???
aoqi@0:      */
aoqi@0:     public void testSuperDisqual() {
aoqi@0:         Interface I = new Interface("I", DefaultMethod.std("99"));
aoqi@0:         Interface J = new Interface("J", I, DefaultMethod.std("55"));
aoqi@0:         Class C = new Class("C", I, J,
aoqi@0:             new ConcreteMethod("int", stdMethodName, "return I.super.m();",
aoqi@0:                 AccessFlag.PUBLIC));
aoqi@0:         C.addCompilationDependency(I.findMethod(stdMethodName));
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(99, C);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface J { int m(); }
aoqi@0:      * interface I extends J { default int m() { return J.super.m(); } }
aoqi@0:      * class C implements I {}
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m() throws AME
aoqi@0:      * TODO: add case for I i = new C(); i.m() throws AME
aoqi@0:      */
aoqi@0:     public void testSuperNull() {
aoqi@0:         Interface J = new Interface("J", AbstractMethod.std());
aoqi@0:         Interface I = new Interface("I", J, new DefaultMethod(
aoqi@0:             "int", stdMethodName, "return J.super.m();"));
aoqi@0:         Interface Jstub = new Interface("J", DefaultMethod.std("99"));
aoqi@0:         I.addCompilationDependency(Jstub);
aoqi@0:         I.addCompilationDependency(Jstub.findMethod(stdMethodName));
aoqi@0:         Class C = new Class("C", I);
aoqi@0: 
aoqi@0:         assertThrows(AbstractMethodError.class, C);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface J<T> { default int m(T t) { return 88; } }
aoqi@0:      * interface I extends J<String> {
aoqi@0:      *     int m(String s) default { return J.super.m(); }
aoqi@0:      * }
aoqi@0:      * class C implements I {}
aoqi@0:      *
aoqi@0:      * TEST: I i = new C(); i.m("") == 88;
aoqi@0:      */
aoqi@0:     public void testSuperGeneric() {
aoqi@0:         Interface J = new Interface("J", new TypeParameter("T"),
aoqi@0:             new DefaultMethod("int", stdMethodName, "return 88;",
aoqi@0:                 new MethodParameter("T", "t")));
aoqi@0:         Interface I = new Interface("I", J.with("String"),
aoqi@0:             new DefaultMethod("int", stdMethodName, "return J.super.m(s);",
aoqi@0:                 new MethodParameter("String", "s")));
aoqi@0:         I.addCompilationDependency(J.findMethod(stdMethodName));
aoqi@0:         Class C = new Class("C", I);
aoqi@0: 
aoqi@0:         AbstractMethod pm = new AbstractMethod("int", stdMethodName,
aoqi@0:             new MethodParameter("String", "s"));
aoqi@0: 
aoqi@0:         assertInvokeInterfaceEquals(88, C, new Extends(I), pm, "\"\"");
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I<T> { int m(T t) default { return 44; } }
aoqi@0:      * interface J extends I<String> { int m(String s) default { return 55; } }
aoqi@0:      * class C implements I<String>, J {
aoqi@0:      *     public int m(String s) { return I.super.m(s); }
aoqi@0:      * }
aoqi@0:      *
aoqi@0:      * TEST: C c = new C(); c.m("string") == 44
aoqi@0:      */
aoqi@0:     public void testSuperGenericDisqual() {
aoqi@0:         MethodParameter t = new MethodParameter("T", "t");
aoqi@0:         MethodParameter s = new MethodParameter("String", "s");
aoqi@0: 
aoqi@0:         Interface I = new Interface("I", new TypeParameter("T"),
aoqi@0:             new DefaultMethod("int", stdMethodName, "return 44;", t));
aoqi@0:         Interface J = new Interface("J", I.with("String"),
aoqi@0:             new DefaultMethod("int", stdMethodName, "return 55;", s));
aoqi@0:         Class C = new Class("C", I.with("String"), J,
aoqi@0:             new ConcreteMethod("int", stdMethodName,
aoqi@0:                 "return I.super.m(s);", AccessFlag.PUBLIC, s));
aoqi@0:         C.addCompilationDependency(I.findMethod(stdMethodName));
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(44, C,
aoqi@0:             new ConcreteMethod(
aoqi@0:                 "int", stdMethodName, "return -1;", AccessFlag.PUBLIC, s),
aoqi@0:             "-1", "\"string\"");
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default Integer m() { return new Integer(88); } }
aoqi@0:      * class C { Number m() { return new Integer(99); } }
aoqi@0:      * class D extends C implements I {}
aoqi@0:      * class S { Object foo() { return (new D()).m(); } // link sig: ()LInteger;
aoqi@0:      * TEST: S s = new S(); s.foo() == new Integer(99)
aoqi@0:      */
aoqi@0:     public void testCovarBridge() {
aoqi@0:         Interface I = new Interface("I", new DefaultMethod(
aoqi@0:             "Integer", "m", "return new Integer(88);"));
aoqi@0:         Class C = new Class("C", new ConcreteMethod(
aoqi@0:             "Number", "m", "return new Integer(99);", AccessFlag.PUBLIC));
aoqi@0:         Class D = new Class("D", I, C);
aoqi@0: 
aoqi@0:         ConcreteMethod DstubMethod = new ConcreteMethod(
aoqi@0:             "Integer", "m", "return null;", AccessFlag.PUBLIC);
aoqi@0:         Class Dstub = new Class("D", DstubMethod);
aoqi@0: 
aoqi@0:         ConcreteMethod toCall = new ConcreteMethod(
aoqi@0:             "Object", "foo", "return (new D()).m();", AccessFlag.PUBLIC);
aoqi@0:         Class S = new Class("S", D, toCall);
aoqi@0:         S.addCompilationDependency(Dstub);
aoqi@0:         S.addCompilationDependency(DstubMethod);
aoqi@0: 
aoqi@0:         // NEGATIVE test for separate compilation -- dispatches to I, not C
aoqi@0:         assertInvokeVirtualEquals(88, S, toCall, "null");
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I { default Integer m() { return new Integer(88); } }
aoqi@0:      * class C { int m() { return 99; } }
aoqi@0:      * class D extends C implements I {}
aoqi@0:      * class S { Object foo() { return (new D()).m(); } // link sig: ()LInteger;
aoqi@0:      * TEST: S s = new S(); s.foo() == new Integer(88)
aoqi@0:      */
aoqi@0:     public void testNoCovarNoBridge() {
aoqi@0:         Interface I = new Interface("I", new DefaultMethod(
aoqi@0:             "Integer", "m", "return new Integer(88);"));
aoqi@0:         Class C = new Class("C", new ConcreteMethod(
aoqi@0:             "int", "m", "return 99;", AccessFlag.PUBLIC));
aoqi@0:         Class D = new Class("D", I, C);
aoqi@0: 
aoqi@0:         ConcreteMethod DstubMethod = new ConcreteMethod(
aoqi@0:             "Integer", "m", "return null;", AccessFlag.PUBLIC);
aoqi@0:         Class Dstub = new Class("D", DstubMethod);
aoqi@0: 
aoqi@0:         ConcreteMethod toCall = new ConcreteMethod(
aoqi@0:             "Object", "foo", "return (new D()).m();", AccessFlag.PUBLIC);
aoqi@0:         Class S = new Class("S", D, toCall);
aoqi@0:         S.addCompilationDependency(Dstub);
aoqi@0:         S.addCompilationDependency(DstubMethod);
aoqi@0: 
aoqi@0:         assertInvokeVirtualEquals(88, S, toCall, "null");
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface J { int m(); }
aoqi@0:      * interface I extends J { default int m() { return 99; } }
aoqi@0:      * class B implements J {}
aoqi@0:      * class C extends B implements I {}
aoqi@0:      * TEST: C c = new C(); c.m() == 99
aoqi@0:      *
aoqi@0:      * The point of this test is that B does not get default method analysis,
aoqi@0:      * and C does not generate any new miranda methods in the vtable.
aoqi@0:      * It verifies that default method analysis occurs when mirandas have been
aoqi@0:      * inherited and the supertypes don't have any overpass methods.
aoqi@0:      */
aoqi@0:     public void testNoNewMiranda() {
aoqi@0:         Interface J = new Interface("J", AbstractMethod.std());
aoqi@0:         Interface I = new Interface("I", J, DefaultMethod.std("99"));
aoqi@0:         Class B = new Class("B", J);
aoqi@0:         Class C = new Class("C", B, I);
aoqi@0:         assertInvokeVirtualEquals(99, C);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * interface I<T,V,W> { int m(T t, V v, W w); }
aoqi@0:      * interface J<T,V> implements I<T,V,String> { int m(T t, V v, String w); }
aoqi@0:      * interface K<T> implements J<T,String> {
aoqi@0:      *     int m(T t, String v, String w); { return 99; } }
aoqi@0:      * class C implements K<String> {
aoqi@0:      *     public int m(Object t, Object v, String w) { return 77; }
aoqi@0:      * }
aoqi@0:      * TEST C = new C(); ((I)c).m(Object,Object,Object) == 99
aoqi@0:      * TEST C = new C(); ((J)c).m(Object,Object,String) == 77
aoqi@0:      * TEST C = new C(); ((K)c).m(Object,String,String) == 99
aoqi@0:      *
aoqi@0:      * Test that a erased-signature-matching method does not implement
aoqi@0:      * non-language-level matching methods
aoqi@0:      */
aoqi@0:     public void testNonConcreteFill() {
aoqi@0:         AbstractMethod ipm = new AbstractMethod("int", "m",
aoqi@0:             new MethodParameter("T", "t"),
aoqi@0:             new MethodParameter("V", "s"),
aoqi@0:             new MethodParameter("W", "w"));
aoqi@0:         Interface I = new Interface("I",
aoqi@0:             new TypeParameter("T"),
aoqi@0:             new TypeParameter("V"),
aoqi@0:             new TypeParameter("W"), ipm);
aoqi@0: 
aoqi@0:         AbstractMethod jpm = new AbstractMethod("int", "m",
aoqi@0:             new MethodParameter("T", "t"),
aoqi@0:             new MethodParameter("V", "s"),
aoqi@0:             new MethodParameter("String", "w"));
aoqi@0:         Interface J = new Interface("J",
aoqi@0:             new TypeParameter("T"),
aoqi@0:             new TypeParameter("V"),
aoqi@0:             I.with("T", "V", "String"), jpm);
aoqi@0: 
aoqi@0:         AbstractMethod kpm = new AbstractMethod("int", "m",
aoqi@0:             new MethodParameter("T", "t"),
aoqi@0:             new MethodParameter("String", "s"),
aoqi@0:             new MethodParameter("String", "w"));
aoqi@0:         DefaultMethod kdm = new DefaultMethod("int", "m", "return 99;",
aoqi@0:                                               new MethodParameter("T", "t"),
aoqi@0:                                               new MethodParameter("String", "v"),
aoqi@0:                                               new MethodParameter("String", "w"));
aoqi@0:         Interface K = new Interface("K",
aoqi@0:             new TypeParameter("T"),
aoqi@0:             J.with("T", "String"),
aoqi@0:             kdm);
aoqi@0: 
aoqi@0:         Class C = new Class("C",
aoqi@0:             K.with("String"),
aoqi@0:             new ConcreteMethod("int", "m", "return 77;",
aoqi@0:                 AccessFlag.PUBLIC,
aoqi@0:                 new MethodParameter("Object", "t"),
aoqi@0:                 new MethodParameter("Object", "v"),
aoqi@0:                 new MethodParameter("String", "w")));
aoqi@0: 
aoqi@0:         // First, without compiler bridges
aoqi@0:         String a = "\"\"";
aoqi@0:         assertInvokeInterfaceEquals(99, C, K.with("String"), kpm, a, a, a);
aoqi@0:         assertInvokeInterfaceEquals(77, C, J.with("String", "String"), jpm, a, a, a);
aoqi@0:         assertInvokeInterfaceThrows(AbstractMethodError.class, C, I.with("String", "String", "String"), ipm, a, a, a);
aoqi@0: 
aoqi@0:         // Now, with bridges
aoqi@0:         J.setFullCompilation(true);
aoqi@0:         K.setFullCompilation(true);
aoqi@0:         assertInvokeInterfaceEquals(99, C, K.with("String"), kpm, a, a, a);
aoqi@0:         assertInvokeInterfaceEquals(77, C, J.with("String", "String"), jpm, a, a, a);
aoqi@0:         assertInvokeInterfaceEquals(99, C, I.with("String", "String", "String"), ipm, a, a, a);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void testStrictfpDefault() {
aoqi@0:         try {
aoqi@0:             java.lang.Class.forName("org.openjdk.tests.vm.StrictfpDefault");
aoqi@0:         } catch (Exception e) {
aoqi@0:             fail("Could not load class", e);
aoqi@0:         }
aoqi@0:     }
aoqi@0: }
aoqi@0: 
aoqi@0: interface StrictfpDefault {
aoqi@0:     default strictfp void m() {}
aoqi@0: }