| // Copyright (c) 2021, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| package com.android.tools.r8.rewrite; |
| |
| import static com.android.tools.r8.utils.codeinspector.CodeMatchers.invokesMethodWithName; |
| import static junit.framework.TestCase.assertNull; |
| import static org.hamcrest.CoreMatchers.not; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.android.tools.r8.DataEntryResource; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.origin.Origin; |
| import com.android.tools.r8.utils.StringUtils; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import java.nio.file.Path; |
| import java.util.ServiceLoader; |
| import java.util.zip.ZipFile; |
| import org.hamcrest.MatcherAssert; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class ServiceLoaderClassLoaderRewritingTest extends TestBase { |
| |
| private final TestParameters parameters; |
| private final String EXPECTED_OUTPUT = StringUtils.lines("Hello World!"); |
| |
| public interface Service { |
| |
| void print(); |
| } |
| |
| public static class ServiceImpl implements Service { |
| |
| @Override |
| public void print() { |
| System.out.println("Hello World!"); |
| } |
| } |
| |
| public static class MainRunner { |
| |
| public static void main(String[] args) { |
| run1(); |
| } |
| |
| @NeverInline |
| public static void run1() { |
| ClassLoader classLoader = Service.class.getClassLoader(); |
| checkNotNull(classLoader); |
| for (Service x : ServiceLoader.load(Service.class, classLoader)) { |
| x.print(); |
| } |
| } |
| |
| @NeverInline |
| public static void checkNotNull(ClassLoader classLoader) { |
| if (classLoader == null) { |
| throw new NullPointerException("ClassLoader should not be null"); |
| } |
| } |
| } |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public ServiceLoaderClassLoaderRewritingTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testRewritings() throws Exception { |
| Path path = temp.newFile("out.zip").toPath(); |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(ServiceLoaderClassLoaderRewritingTest.class) |
| .addKeepMainRule(MainRunner.class) |
| .setMinApi(parameters.getApiLevel()) |
| .enableInliningAnnotations() |
| .addDataEntryResources( |
| DataEntryResource.fromBytes( |
| StringUtils.lines(ServiceImpl.class.getTypeName()).getBytes(), |
| "META-INF/services/" + Service.class.getTypeName(), |
| Origin.unknown())) |
| .compile() |
| .writeToZip(path) |
| .inspect(this::verifyNoServiceLoaderLoads) |
| .run(parameters.getRuntime(), MainRunner.class) |
| .assertSuccessWithOutput(EXPECTED_OUTPUT); |
| |
| // Check that we have removed the service configuration from META-INF/services. |
| ZipFile zip = new ZipFile(path.toFile()); |
| assertNull(zip.getEntry("META-INF/services/" + Service.class.getTypeName())); |
| } |
| |
| private void verifyNoServiceLoaderLoads(CodeInspector inspector) { |
| ClassSubject classSubject = inspector.clazz(MainRunner.class); |
| assertTrue(classSubject.isPresent()); |
| classSubject.forAllMethods( |
| method -> MatcherAssert.assertThat(method, not(invokesMethodWithName("load")))); |
| } |
| } |