jdk-24/test/langtools/tools/javac/modules/WrongErrorMessageForNestedServiceProviderTest.java

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/**
 * @test
 * @bug 8174243
 * @summary incorrect error message for nested service provider
 * @library /tools/lib
 * @modules
 *      jdk.compiler/com.sun.tools.javac.api
 *      jdk.compiler/com.sun.tools.javac.main
 * @build toolbox.ToolBox toolbox.JavacTask ModuleTestBase
 * @run main WrongErrorMessageForNestedServiceProviderTest
 */

import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.List;

import toolbox.JavacTask;
import toolbox.Task;
import toolbox.ToolBox;

public class WrongErrorMessageForNestedServiceProviderTest extends ModuleTestBase {
    public static void main(String... args) throws Exception {
        WrongErrorMessageForNestedServiceProviderTest t = new WrongErrorMessageForNestedServiceProviderTest();
        t.runTests();
    }

    private static final String twoServicesModuleDef =
            """
                module m {
                    exports example;
                    provides example.SomeService with example.ServiceImpl;
                    provides example.SomeServiceOuter with example.Outer.ServiceImplOuter;
                }""";

    private static final String someServiceInt =
            """
                package example;
                public interface SomeService {
                    public void foo();
                }""";

    private static final String someServiceIntOuter =
            """
                package example;
                public interface SomeServiceOuter {
                    public void foo();
                }""";

    @Test
    public void testPositive(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                twoServicesModuleDef,
                someServiceInt,
                someServiceIntOuter,
                """
                    package example;
                    public class ServiceImpl implements example.SomeService {
                        public ServiceImpl() {}
                        public void foo() {}
                    }""",

                """
                    package example;
                    class Outer {
                        public static class ServiceImplOuter implements example.SomeServiceOuter {
                            public ServiceImplOuter() {}
                            public void foo() {}
                        }
                    }""");
        Path classes = base.resolve("classes");
        Files.createDirectories(classes);

        List<String> output = new JavacTask(tb)
                .outdir(classes)
                .options("-Werror", "-XDrawDiagnostics")
                .files(findJavaFiles(src))
                .run(Task.Expect.SUCCESS)
                .writeAll()
                .getOutputLines(Task.OutputKind.DIRECT);
        List<String> expected = Arrays.asList("");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }

    @Test
    public void testNegative(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                twoServicesModuleDef,
                someServiceInt,
                someServiceIntOuter,
                """
                    package example;
                    class ServiceImpl implements example.SomeService {
                        public ServiceImpl() {}
                        public void foo() {}
                    }""",

                """
                    package example;
                    class Outer {
                        static class ServiceImplOuter implements example.SomeServiceOuter {
                            public ServiceImplOuter() {}
                            public void foo() {}
                        }
                    }""");
        Path classes = base.resolve("classes");
        Files.createDirectories(classes);

        List<String> output = new JavacTask(tb)
                .outdir(classes)
                .options("-Werror", "-XDrawDiagnostics")
                .files(findJavaFiles(src))
                .run(Task.Expect.FAIL)
                .writeAll()
                .getOutputLines(Task.OutputKind.DIRECT);
        List<String> expected = Arrays.asList(
                "module-info.java:3:46: compiler.err.not.def.public: example.ServiceImpl, example",
                "module-info.java:4:57: compiler.err.not.def.public: example.Outer.ServiceImplOuter, example.Outer",
                "2 errors");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }

    @Test
    public void testClassWrappedByPrivateClass(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                """
                    module m {
                        exports example;
                        provides example.SomeServiceOuter with example.Outer1.Outer2.ServiceImplOuter;
                    }""",

                someServiceIntOuter,

                """
                    package example;
                    class Outer1 {
                        static private class Outer2 {
                            public static class ServiceImplOuter implements example.SomeServiceOuter {
                                public ServiceImplOuter() {}
                                public void foo() {}
                            }
                        }
                    }""");
        Path classes = base.resolve("classes");
        Files.createDirectories(classes);

        List<String> output = new JavacTask(tb)
                .outdir(classes)
                .options("-Werror", "-XDrawDiagnostics")
                .files(findJavaFiles(src))
                .run(Task.Expect.SUCCESS)
                .writeAll()
                .getOutputLines(Task.OutputKind.DIRECT);
        List<String> expected = Arrays.asList("");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }
}