564 lines
23 KiB
Java
564 lines
23 KiB
Java
/*
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* Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 8031195
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* @bug 8071657
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* @bug 8165827
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* @summary JDI: Add support for static, private and default methods in interfaces
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*
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* @run build TestScaffold VMConnection TargetListener TargetAdapter
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* @run build InterfaceMethodsTest
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* @run driver InterfaceMethodsTest
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*/
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import com.sun.jdi.*;
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import com.sun.jdi.event.*;
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import java.util.Collections;
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import java.util.Iterator;
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import java.util.List;
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public class InterfaceMethodsTest extends TestScaffold {
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private static final int RESULT_A = 1;
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private static final int RESULT_B = 2;
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private static final int RESULT_TARGET = 3;
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static interface InterfaceA {
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static int staticMethodA() {
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System.out.println("-InterfaceA: static interface method A-");
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return RESULT_A;
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}
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static int staticMethodB() {
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System.out.println("-InterfaceA: static interface method B-");
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return RESULT_A;
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}
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default int defaultMethodA() {
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System.out.println("-InterfaceA: default interface method A-");
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return RESULT_A;
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}
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default int defaultMethodB() {
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System.out.println("-InterfaceA: default interface method B-");
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return RESULT_A;
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}
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default int defaultMethodC() {
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System.out.println("-InterfaceA: default interface method C-");
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return RESULT_A;
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}
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private int privateMethodA() {
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System.out.println("-InterfaceA: private interface method A-");
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return RESULT_A;
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}
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int implementedMethod();
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}
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static interface InterfaceB extends InterfaceA {
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@Override
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default int defaultMethodC() {
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System.out.println("-InterfaceB: overridden default interface method C-");
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return RESULT_B;
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}
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default int defaultMethodD() {
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System.out.println("-InterfaceB: default interface method D-");
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return RESULT_B;
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}
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static int staticMethodB() {
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System.out.println("-InterfaceB: overridden static interface method B-");
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return RESULT_B;
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}
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static int staticMethodC() {
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System.out.println("-InterfaceB: static interface method C-");
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return RESULT_B;
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}
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private int privateMethodB() {
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System.out.println("-InterfaceB: private interface method B-");
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return RESULT_B;
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}
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}
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final static class TargetClass implements InterfaceB {
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public int classMethod() {
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System.out.println("-TargetClass: class only method-");
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return RESULT_TARGET;
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}
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@Override
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public int implementedMethod() {
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System.out.println("-TargetClass: implemented non-default interface method-");
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return RESULT_TARGET;
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}
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@Override
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public int defaultMethodB() {
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System.out.println("-TargetClass: overridden default interface method B");
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return RESULT_TARGET;
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}
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public static void main(String[] args) {
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TargetClass tc = new TargetClass();
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tc.doTests(tc);
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}
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private void doTests(TargetClass ref) {
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// break
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}
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}
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public InterfaceMethodsTest(String[] args) {
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super(args);
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}
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public static void main(String[] args) throws Exception {
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new InterfaceMethodsTest(args).startTests();
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}
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private static final String TEST_CLASS_NAME = InterfaceMethodsTest.class.getName().replace('.', '/');
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private static final String TARGET_CLASS_NAME = TargetClass.class.getName().replace('.', '/');
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private static final String INTERFACEA_NAME = InterfaceA.class.getName().replace('.', '/');
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private static final String INTERFACEB_NAME = InterfaceB.class.getName().replace('.', '/');
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protected void runTests() throws Exception {
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/*
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* Get to the top of main()
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* to determine targetClass and mainThread
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*/
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BreakpointEvent bpe = startToMain(TARGET_CLASS_NAME);
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bpe = resumeTo(TARGET_CLASS_NAME, "doTests", "(L" + TARGET_CLASS_NAME +";)V");
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mainThread = bpe.thread();
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StackFrame frame = mainThread.frame(0);
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ObjectReference thisObject = frame.thisObject();
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ObjectReference ref = (ObjectReference)frame.getArgumentValues().get(0);
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ReferenceType targetClass = bpe.location().declaringType();
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testImplementationClass(targetClass, thisObject);
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testInterfaceA(ref);
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testInterfaceB(ref);
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/*
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* resume the target listening for events
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*/
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listenUntilVMDisconnect();
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/*
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* deal with results of test
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* if anything has called failure("foo") testFailed will be true
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*/
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if (!testFailed) {
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println("InterfaceMethodsTest: passed");
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} else {
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throw new Exception("InterfaceMethodsTest: failed");
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}
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}
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private void testInterfaceA(ObjectReference ref) {
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ReferenceType ifaceClass = (ReferenceType)vm().classesByName(INTERFACEA_NAME).get(0);
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/* Private method calls */
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Method m = testLookup(ifaceClass, "privateMethodA", "()I", true, null); // should succeed
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testInvokePos(m, ref, vm().mirrorOf(RESULT_A), false);
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testInvokePos(m, ref, vm().mirrorOf(RESULT_A), true);
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// Test non-virtual calls on InterfaceA
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/* Default method calls */
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// invoke the InterfaceA's "defaultMethodA"
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testInvokePos(ifaceClass, ref, "defaultMethodA", "()I", vm().mirrorOf(RESULT_A));
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// invoke the InterfaceA's "defaultMethodB"
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testInvokePos(ifaceClass, ref, "defaultMethodB", "()I", vm().mirrorOf(RESULT_A));
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// invoke the InterfaceA's "defaultMethodC"
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testInvokePos(ifaceClass, ref, "defaultMethodC", "()I", vm().mirrorOf(RESULT_A));
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// "defaultMethodD" from InterfaceB is not accessible from here
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testInvokeNeg(ifaceClass, ref, "defaultMethodD", "()I", vm().mirrorOf(RESULT_B),
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"Attempted to invoke non-existing method");
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// non-virtual invoke of the abstract method "implementedMethod" fails
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testInvokeNeg(ifaceClass, ref, "implementedMethod", "()I", vm().mirrorOf(TARGET_CLASS_NAME),
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"Invocation of abstract methods is not supported");
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/* Static method calls */
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// invoke static interface method A
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testInvokePos(ifaceClass, null, "staticMethodA", "()I", vm().mirrorOf(RESULT_A));
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// invoking static method A on the instance fails because static method A is
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// not inherited by TargetClass.
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testInvokeNeg(ifaceClass, ref, "staticMethodA", "()I", vm().mirrorOf(RESULT_A),
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"Invalid MethodID");
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// invoke static interface method B
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testInvokePos(ifaceClass, null, "staticMethodB", "()I", vm().mirrorOf(RESULT_A));
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// invoking static method B on the instance fails because static method B is
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// not inherited by TargetClass.
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testInvokeNeg(ifaceClass, ref, "staticMethodB", "()I", vm().mirrorOf(RESULT_A),
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"Invalid MethodID");
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// try to invoke a virtual method
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testInvokePos(ifaceClass, ref, "implementedMethod", "()I", vm().mirrorOf(RESULT_TARGET), true);
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}
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private void testInterfaceB(ObjectReference ref) {
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// Test non-virtual calls on InterfaceB
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ReferenceType ifaceClass = (ReferenceType)vm().classesByName(INTERFACEB_NAME).get(0);
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/* private method calls */
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/* These should fail but won't because of JDK-8167416
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testLookup(ifaceClass, "privateMethodA", "()I", true, NoSuchMethodError.class); // should fail
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testLookup(ifaceClass, "privateMethodA", "()I", false, NoSuchMethodError.class); // should fail
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*/
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Method m = testLookup(ifaceClass, "privateMethodB", "()I", true, null); // should succeed
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testInvokePos(m, ref, vm().mirrorOf(RESULT_B), false);
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testInvokePos(m, ref, vm().mirrorOf(RESULT_B), true);
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/* Default method calls */
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// invoke the inherited "defaultMethodA"
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testInvokePos(ifaceClass, ref, "defaultMethodA", "()I", vm().mirrorOf(RESULT_A));
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// invoke the inherited "defaultMethodB"
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testInvokePos(ifaceClass, ref, "defaultMethodB", "()I", vm().mirrorOf(RESULT_A));
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// invoke the inherited and overridden "defaultMethodC"
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testInvokePos(ifaceClass, ref, "defaultMethodC", "()I", vm().mirrorOf(RESULT_B));
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// invoke InterfaceB only "defaultMethodD"
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testInvokePos(ifaceClass, ref, "defaultMethodD", "()I", vm().mirrorOf(RESULT_B));
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// "implementedMethod" is not present in InterfaceB
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testInvokeNeg(ifaceClass, ref, "implementedMethod", "()I", vm().mirrorOf(RESULT_TARGET),
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"Invocation of non-default methods is not supported");
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/* Static method calls*/
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// "staticMethodA" must not be inherited by InterfaceB
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testInvokeNeg(ifaceClass, null, "staticMethodA", "()I", vm().mirrorOf(RESULT_A),
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"Static interface methods are not inheritable");
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// "staticMethodA" is not inherited by InterfaceB even from an actual instance
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testInvokeNeg(ifaceClass, ref, "staticMethodA", "()I", vm().mirrorOf(RESULT_A),
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"Static interface methods are not inheritable");
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// "staticMethodB" is re-defined in InterfaceB
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testInvokePos(ifaceClass, null, "staticMethodB", "()I", vm().mirrorOf(RESULT_B));
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// the instance fails to invoke the re-defined form of "staticMethodB" from
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// InterfaceB because staticMethodB is not inherited by TargetClass
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testInvokeNeg(ifaceClass, ref, "staticMethodB", "()I", vm().mirrorOf(RESULT_B),
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"Invalid MethodID");
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// "staticMethodC" is present only in InterfaceB
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testInvokePos(ifaceClass, null, "staticMethodC", "()I", vm().mirrorOf(RESULT_B));
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// "staticMethodC" is not reachable from the instance because staticMethodC
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// is not inherited by TargetClass.
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testInvokeNeg(ifaceClass, ref, "staticMethodC", "()I", vm().mirrorOf(RESULT_B),
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"Invalid MethodID");
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}
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private void testImplementationClass(ReferenceType targetClass, ObjectReference thisObject) {
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// Test invocations on the implementation object
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// Note: private interface calls have already been tested
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/* Default method calls */
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// "defaultMethodA" is accessible and not overridden
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testInvokePos(targetClass, thisObject, "defaultMethodA", "()I", vm().mirrorOf(RESULT_A));
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// "defaultMethodB" is accessible and overridden in TargetClass
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testInvokePos(targetClass, thisObject, "defaultMethodB", "()I", vm().mirrorOf(RESULT_TARGET));
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// "defaultMethodC" is accessible and overridden in InterfaceB
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testInvokePos(targetClass, thisObject, "defaultMethodC", "()I", vm().mirrorOf(RESULT_B));
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// "defaultMethodD" is accessible
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testInvokePos(targetClass, thisObject, "defaultMethodD", "()I", vm().mirrorOf(RESULT_B));
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/* Non-default instance method calls */
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// "classMethod" declared in TargetClass is accessible
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testInvokePos(targetClass, thisObject, "classMethod", "()I", vm().mirrorOf(RESULT_TARGET));
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// the abstract "implementedMethod" has been implemented in TargetClass
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testInvokePos(targetClass, thisObject, "implementedMethod", "()I", vm().mirrorOf(RESULT_TARGET));
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/* Static method calls */
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// All the static methods declared by the interfaces are not reachable from the instance of the implementor class
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testInvokeNeg(targetClass, thisObject, "staticMethodA", "()I", vm().mirrorOf(RESULT_A),
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"Static interface methods are not inheritable");
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testInvokeNeg(targetClass, thisObject, "staticMethodB", "()I", vm().mirrorOf(RESULT_B),
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"Static interface methods are not inheritable");
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testInvokeNeg(targetClass, thisObject, "staticMethodC", "()I", vm().mirrorOf(RESULT_B),
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"Static interface methods are not inheritable");
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// All the static methods declared by the interfaces are not reachable through the implementor class
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testInvokeNeg(targetClass, null, "staticMethodA", "()I", vm().mirrorOf(RESULT_A),
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"Static interface methods are not inheritable");
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testInvokeNeg(targetClass, null, "staticMethodB", "()I", vm().mirrorOf(RESULT_B),
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"Static interface methods are not inheritable");
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testInvokeNeg(targetClass, null, "staticMethodC", "()I", vm().mirrorOf(RESULT_B),
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"Static interface methods are not inheritable");
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}
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// Non-virtual invocation
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private void testInvokePos(ReferenceType targetClass, ObjectReference ref, String methodName,
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String methodSig, Value value) {
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testInvokePos(targetClass, ref, methodName, methodSig, value, false);
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}
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// Lookup the named method in the targetClass and invoke on the given object (for instance methods)
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// using virtual, or non-virtual, invocation mode as specified, for instance methods. Verify the
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// expected return value.
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// Should succeed.
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private void testInvokePos(ReferenceType targetClass, ObjectReference ref, String methodName,
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String methodSig, Value value, boolean virtual) {
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logInvocation(ref, methodName, methodSig, targetClass);
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try {
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invoke(targetClass, ref, methodName, methodSig, value, virtual);
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System.err.println("--- PASSED");
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} catch (Exception e) {
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System.err.println("--- FAILED");
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failure("FAILED: Invocation failed with error message " + e.getLocalizedMessage());
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}
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}
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// Invoke the given Method on the given object (for instance methods)
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// using virtual, or non-virtual, invocation mode as specified, for instance methods. Verify the
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// expected return value.
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// Should succeed.
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private void testInvokePos(Method method, ObjectReference ref, Value value, boolean virtual) {
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logInvocation(ref, method.name(), method.signature(), method.declaringType());
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try {
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invoke(method.declaringType(), ref, method, value, virtual);
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System.err.println("--- PASSED");
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} catch (Exception e) {
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System.err.println("--- FAILED");
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failure("FAILED: Invocation failed with error message " + e.getLocalizedMessage());
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}
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}
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// Non-virtual invocation - with lookup in targetClass
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private void testInvokeNeg(ReferenceType targetClass, ObjectReference ref, String methodName,
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String methodSig, Value value, String msg) {
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testInvokeNeg(targetClass, ref, methodName, methodSig, value, msg, false);
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}
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// Lookup the named method in the targetClass and invoke on the given object (for instance methods)
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// using virtual, or non-virtual, invocation mode as specified, for instance methods. Verify the
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// expected return value.
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// Should fail - with msg decribing why failure was expected
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private void testInvokeNeg(ReferenceType targetClass, ObjectReference ref, String methodName,
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String methodSig, Value value, String msg, boolean virtual) {
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logInvocation(ref, methodName, methodSig, targetClass);
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try {
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invoke(targetClass, ref, methodName, methodSig, value, virtual);
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System.err.println("--- FAILED");
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failure("FAILED: " + msg);
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} catch (Exception e) {
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System.err.println("--- PASSED");
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}
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}
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private void invoke(ReferenceType targetClass, ObjectReference ref, String methodName,
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String methodSig, Value value, boolean virtual) throws Exception {
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Method method = getMethod(targetClass, methodName, methodSig);
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if (method == null) {
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throw new Exception("Can't find method: " + methodName + " for class = " + targetClass);
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}
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invoke(targetClass, ref, method, value, virtual);
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}
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private void invoke(ReferenceType targetClass, ObjectReference ref, Method method,
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Value value, boolean virtual) throws Exception {
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println("Invoking " + (method.isAbstract() ? "abstract " : " ") + "method: " + method);
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println(method.declaringType().toString());
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Value returnValue = null;
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if (ref != null) {
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if (virtual) {
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returnValue = invokeVirtual(ref, method);
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} else {
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returnValue = invokeNonVirtual(ref, method);
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}
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} else {
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returnValue = invokeStatic(targetClass, method);
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}
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println(" return val = " + returnValue);
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// It has to be the same value as what we passed in!
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if (returnValue.equals(value)) {
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println(" " + method.name() + " return value matches: "
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+ value);
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} else {
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if (value != null) {
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throw new Exception(method.name() + " returned: " + returnValue +
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" expected: " + value );
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} else {
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println(" " + method.name() + " return value : " + returnValue);
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}
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}
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}
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private Value invokeNonVirtual(ObjectReference ref, Method method) throws Exception {
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return ref.invokeMethod(mainThread, method, Collections.emptyList(), ObjectReference.INVOKE_NONVIRTUAL);
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}
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private Value invokeVirtual(ObjectReference ref, Method method) throws Exception {
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return ref.invokeMethod(mainThread, method, Collections.emptyList(), 0);
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}
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private Value invokeStatic(ReferenceType refType, Method method) throws Exception {
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if (refType instanceof ClassType) {
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return ((ClassType)refType).invokeMethod(mainThread, method, Collections.emptyList(), ObjectReference.INVOKE_NONVIRTUAL);
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} else {
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return ((InterfaceType)refType).invokeMethod(mainThread, method, Collections.emptyList(), ObjectReference.INVOKE_NONVIRTUAL);
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}
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}
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private Method getMethod(ReferenceType rt, String name, String signature) {
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if (rt == null) return null;
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Method m = findMethod(rt, name, signature);
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if (m == null) {
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if (rt instanceof ClassType) {
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for (Object ifc : ((ClassType)rt).interfaces()) {
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m = getMethod((ReferenceType)ifc, name, signature);
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if (m != null) {
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break;
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}
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}
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if (m == null) {
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m = getMethod(((ClassType)rt).superclass(), name, signature);
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} else {
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if (m.isStatic()) {
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// interface static methods are not inherited
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m = null;
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}
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}
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} else if (rt instanceof InterfaceType) {
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for(Object ifc : ((InterfaceType)rt).superinterfaces()) {
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m = getMethod((ReferenceType)ifc, name, signature);
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if (m != null) {
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if (m.isStatic()) {
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// interface static methods are not inherited
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m = null;
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}
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break;
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}
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}
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}
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|
}
|
|
|
|
return m;
|
|
}
|
|
|
|
private void logInvocation(ObjectReference ref, String methodName, String methodSig, ReferenceType targetClass) {
|
|
if (ref != null) {
|
|
System.err.println("Invoking: " + ref.referenceType().name() + "." +
|
|
methodName + methodSig + " with target of type " +
|
|
targetClass.name());
|
|
} else {
|
|
System.err.println("Invoking static : " + targetClass.name() + "." +
|
|
methodName + methodSig);
|
|
}
|
|
}
|
|
|
|
private Method testLookup(ReferenceType targetClass, String methodName, String methodSig,
|
|
boolean declaredOnly, Class<?> expectedException) {
|
|
|
|
System.err.println("Looking up " + targetClass.name() + "." + methodName + methodSig);
|
|
try {
|
|
Method m = declaredOnly ?
|
|
lookupDeclaredMethod(targetClass, methodName, methodSig) :
|
|
lookupMethod(targetClass, methodName, methodSig);
|
|
|
|
if (expectedException == null) {
|
|
System.err.println("--- PASSED");
|
|
return m;
|
|
}
|
|
else {
|
|
System.err.println("--- FAILED");
|
|
failure("FAILED: lookup succeeded but expected exception "
|
|
+ expectedException.getSimpleName());
|
|
return null;
|
|
}
|
|
}
|
|
catch (Throwable t) {
|
|
if (t.getClass() != expectedException) {
|
|
System.err.println("--- FAILED");
|
|
failure("FAILED: got exception " + t + " but expected exception "
|
|
+ expectedException.getSimpleName());
|
|
return null;
|
|
}
|
|
else {
|
|
System.err.println("--- PASSED");
|
|
return null;
|
|
}
|
|
}
|
|
}
|
|
|
|
private Method lookupMethod(ReferenceType targetClass, String methodName, String methodSig) {
|
|
List methods = targetClass.allMethods();
|
|
Iterator iter = methods.iterator();
|
|
while (iter.hasNext()) {
|
|
Method method = (Method)iter.next();
|
|
if (method.name().equals(methodName) &&
|
|
method.signature().equals(methodSig)) {
|
|
return method;
|
|
}
|
|
}
|
|
throw new NoSuchMethodError();
|
|
}
|
|
|
|
private Method lookupDeclaredMethod(ReferenceType targetClass, String methodName, String methodSig) {
|
|
Method m = findMethod(targetClass, methodName, methodSig);
|
|
if (m == null)
|
|
throw new NoSuchMethodError();
|
|
return m;
|
|
}
|
|
}
|