| /* |
| * Copyright (c) 2015, 2018, 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 8044537 8200301 |
| * @summary Checking ACC_SYNTHETIC flag is generated for bridge method |
| * generated for lambda expressions and method references. |
| * @modules jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.main |
| * jdk.jdeps/com.sun.tools.classfile |
| * @library /tools/lib /tools/javac/lib ../lib |
| * @build toolbox.ToolBox InMemoryFileManager TestResult TestBase |
| * @build SyntheticTestDriver ExpectedClass ExpectedClasses |
| * @compile -XDdeduplicateLambdas=false BridgeMethodsForLambdaTest.java |
| * @run main SyntheticTestDriver BridgeMethodsForLambdaTest |
| */ |
| |
| import java.util.Comparator; |
| import java.util.stream.IntStream; |
| |
| /** |
| * Synthetic members: |
| * 1. inner class for Inner1. |
| * 2. method for () -> {} in Inner1 |
| * 3. method for () -> {} in Inner2 |
| * 4. method references to private methods. |
| * 5. method for super::function() |
| * 6. method references to private static methods. |
| * 7. access method for private method function(). |
| * 8. access method for private static method staticFunction(). |
| * 9. method reference to vararg method. |
| * 10. method reference to array's method. |
| * 11. constructors for Inner1 and Inner2. |
| */ |
| @ExpectedClass(className = "BridgeMethodsForLambdaTest", |
| expectedMethods = {"<init>()", "<clinit>()", "function(java.lang.Integer[])"}, |
| expectedNumberOfSyntheticMethods = 6) |
| @ExpectedClass(className = "BridgeMethodsForLambdaTest$Inner1", |
| expectedMethods = {"<init>(BridgeMethodsForLambdaTest)", "function()", "run()"}, |
| expectedFields = "lambda1", |
| expectedNumberOfSyntheticMethods = 1, |
| expectedNumberOfSyntheticFields = 1) |
| @ExpectedClass(className = "BridgeMethodsForLambdaTest$Inner2", |
| expectedMethods = {"<init>()", "staticFunction()"}, |
| expectedFields = "lambda1", |
| expectedNumberOfSyntheticMethods = 1) |
| @ExpectedClass(className = "BridgeMethodsForLambdaTest$Inner3", |
| expectedMethods = {"<init>(BridgeMethodsForLambdaTest)", "function()"}, |
| expectedNumberOfSyntheticFields = 1) |
| @ExpectedClass(className = "BridgeMethodsForLambdaTest$Inner4", |
| expectedMethods = {"<init>(BridgeMethodsForLambdaTest)", "function()"}, |
| expectedNumberOfSyntheticMethods = 1, |
| expectedNumberOfSyntheticFields = 1) |
| public class BridgeMethodsForLambdaTest { |
| |
| private class Inner1 implements Runnable { |
| private Inner1() { |
| } |
| private Runnable lambda1 = () -> { |
| }; |
| private void function() { |
| } |
| @Override |
| public void run() { |
| } |
| } |
| |
| private static class Inner2 { |
| private Runnable lambda1 = () -> { |
| }; |
| private static void staticFunction() { |
| } |
| } |
| |
| private class Inner3 { |
| public void function() { |
| } |
| } |
| |
| private class Inner4 extends Inner3 { |
| @Override |
| public void function() { |
| Runnable r = super::function; |
| } |
| } |
| |
| private static int function(Integer...vararg) { |
| return 0; |
| } |
| |
| { |
| Inner1 inner = new Inner1(); |
| Runnable l1 = inner::function; |
| Runnable l2 = Inner1::new; |
| inner.lambda1 = inner::function; |
| Comparator<Integer> c = BridgeMethodsForLambdaTest::function; |
| IntStream.of(2).mapToObj(int[]::new); |
| } |
| |
| static { |
| Inner2 inner = new Inner2(); |
| Runnable l1 = Inner2::staticFunction; |
| } |
| } |