8011590: More tests for core reflection modeling of default methods

Reviewed-by: mduigou

jdk/test/java/lang/reflect/Method/DefaultMethodModeling.java

@@ -0,0 +1,224 @@
+/*
+ * Copyright (c) 2013 Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8011590
+ * @summary Check modeling of default methods
+ * @author Joseph D. Darcy
+ */
+
+import java.util.Objects;
+import java.lang.reflect.*;
+import java.lang.annotation.*;
+
+import static java.lang.reflect.Modifier.*;
+
+public class DefaultMethodModeling {
+    public static void main(String... args) {
+        int failures = 0;
+
+        Class<?>[] classes = {SuperC.class, SuperCchild.class,
+                              SuperI.class, SuperIchild.class,
+                              SuperIwithDefault.class, SuperIwithDefaultChild.class,
+                              Base.class, Combo1.class, Combo2.class,
+                              SonSuperIwithDefault.class, DaughterSuperIwithDefault.class, GrandchildSuperIwithDefault.class, D.class,
+                              B.class, C.class
+        };
+
+        for(Class<?> clazz : classes) {
+            System.err.println(clazz.toString());
+            for(Method m : clazz.getMethods()) {
+                if (m.getDeclaringClass() != java.lang.Object.class)
+                    failures += testMethod(m);
+            }
+        }
+
+        if (failures > 0)
+            throw new RuntimeException();
+    }
+
+    private static int testMethod(Method m) {
+        ExpectedModel em = Objects.requireNonNull(m.getAnnotation(ExpectedModel.class));
+        boolean failed = false;
+
+        if (m.getModifiers() != em.modifiers()) {
+            failed = true;
+            System.err.printf("Unexpected modifiers %d; expected %d%n", m.getModifiers(), em.modifiers());
+        }
+
+        if (m.isDefault() != em.isDefault()) {
+            failed = true;
+            System.err.printf("Unexpected isDefualt %b; expected b%n", m.isDefault(), em.isDefault());
+        }
+
+        if (!m.getDeclaringClass().equals(em.declaringClass())) {
+            failed = true;
+            System.err.printf("Unexpected isDefualt %s; expected %s%n",
+                              m.getDeclaringClass().toString(), em.declaringClass().toString());
+        }
+
+        return (!failed) ? 0 :1;
+    }
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface ExpectedModel {
+    boolean isDefault() default false;
+    int modifiers() default PUBLIC;
+    Class<?> declaringClass();
+}
+
+abstract class SuperC {
+    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=SuperC.class)
+    public abstract void foo();
+
+    @ExpectedModel(declaringClass=SuperC.class)
+    public void bar() {
+        ;
+    }
+}
+
+class SuperCchild extends SuperC {
+    @ExpectedModel(declaringClass=SuperCchild.class)
+    @Override
+    public void foo() {;}
+}
+
+// -=-=-=-
+
+interface SuperI {
+    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=SuperI.class)
+    void foo();
+
+    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=SuperI.class)
+    void bar();
+}
+
+class SuperIchild implements SuperI {
+    @ExpectedModel(declaringClass=SuperIchild.class)
+    public void foo() {;}
+
+    @ExpectedModel(declaringClass=SuperIchild.class)
+    public void bar() {;}
+}
+
+// -=-=-=-
+
+interface SuperIwithDefault {
+    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=SuperIwithDefault.class)
+    void foo();
+
+    @ExpectedModel(isDefault=true, declaringClass=SuperIwithDefault.class)
+    default void bar() {
+        ;
+    }
+}
+
+class SuperIwithDefaultChild implements SuperIwithDefault {
+    @ExpectedModel(declaringClass=SuperIwithDefaultChild.class)
+    @Override
+    public void foo() {;}
+}
+
+// -=-=-=-
+
+abstract class Base {
+    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=Base.class)
+    abstract public void baz();
+
+    @ExpectedModel(declaringClass=Base.class)
+    public void quux() {;}
+}
+
+abstract class Combo1 extends Base implements SuperI {
+    @ExpectedModel(declaringClass=Combo1.class)
+    public void wombat() {}
+}
+
+abstract class Combo2 extends Base implements SuperIwithDefault {
+    @ExpectedModel(declaringClass=Combo2.class)
+    public void wombat() {}
+}
+
+// -=-=-=-
+
+interface SonSuperIwithDefault extends SuperIwithDefault {
+    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=SonSuperIwithDefault.class)
+    void baz();
+
+    @ExpectedModel(isDefault=true, declaringClass=SonSuperIwithDefault.class)
+    default void bazD() {;}
+}
+
+interface DaughterSuperIwithDefault extends SuperIwithDefault {
+    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=DaughterSuperIwithDefault.class)
+    void quux();
+
+    @ExpectedModel(isDefault=true, declaringClass=DaughterSuperIwithDefault.class)
+    default void quuxD() {;}
+}
+
+interface GrandchildSuperIwithDefault extends SonSuperIwithDefault, DaughterSuperIwithDefault {
+    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=GrandchildSuperIwithDefault.class)
+    void wombat();
+
+    @ExpectedModel(isDefault=true, declaringClass=GrandchildSuperIwithDefault.class)
+    default void wombatD() {;}
+
+}
+
+class D implements GrandchildSuperIwithDefault {
+    @ExpectedModel(declaringClass=D.class)
+    public void wombat(){}
+
+    @ExpectedModel(declaringClass=D.class)
+    public void  baz(){}
+
+    @ExpectedModel(declaringClass=D.class)
+    public void foo(){}
+
+    @ExpectedModel(declaringClass=D.class)
+    public void quux(){}
+}
+
+// -=-=-=-
+
+// What does re-abstraction look like?
+
+class A implements SuperIwithDefault {
+    @ExpectedModel(declaringClass=A.class)
+    @Override
+    public void foo(){;}
+}
+
+abstract class B extends A {
+    @ExpectedModel(modifiers=PUBLIC|ABSTRACT, declaringClass=B.class)
+    @Override
+    public abstract void bar();
+}
+
+class C extends B implements SuperIwithDefault {
+    @ExpectedModel(declaringClass=C.class)
+    public void bar(){}
+}