test/langtools/tools/javac/classfiles/InnerClasses/T8068517.java

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/* @test
 * @bug 8034854
 * @summary Verify that nested enums have correct abstract flag in the InnerClasses attribute.
 * @library /tools/lib
 * @modules jdk.compiler/com.sun.tools.javac.api
 *          jdk.compiler/com.sun.tools.javac.main
 *          jdk.compiler/com.sun.tools.javac.util
 * @build toolbox.ToolBox toolbox.JavacTask
 * @build T8068517
 * @run main T8068517
 */

import com.sun.tools.javac.util.Assert;
import java.util.Arrays;
import javax.tools.JavaFileManager;
import javax.tools.StandardLocation;
import javax.tools.ToolProvider;

import toolbox.JavacTask;
import toolbox.ToolBox;

public class T8068517 {

    public static void main(String[] args) throws Exception {
        new T8068517().run();
    }

    void run() throws Exception {
        runTest("class A {\n" +
                "    enum AInner implements Runnable {\n" +
                "        A {\n" +
                "            public void run() {}\n" +
                "        };\n" +
                "    }\n" +
                "}\n",
                "class B {\n" +
                "    A.AInner a;\n" +
                "}");
        runTest("class A {\n" +
                "    enum AInner implements Runnable {\n" +
                "        A {\n" +
                "            public void run() {}\n" +
                "        };\n" +
                "    }\n" +
                "    AInner aInner;\n" +
                "}\n",
                "class B {\n" +
                "    void test(A a) {;\n" +
                "        switch (a.aInner) {\n" +
                "            case A: break;\n" +
                "        }\n" +
                "    };\n" +
                "}");
        runTest("class A {\n" +
                "    enum AInner implements Runnable {\n" +
                "        A {\n" +
                "            public void run() {}\n" +
                "        };\n" +
                "    }\n" +
                "    AInner aInner;\n" +
                "}\n",
                "class B {\n" +
                "    void test(A a) {;\n" +
                "        System.err.println(a.aInner.toString());\n" +
                "    };\n" +
                "}");
        runTest("class A {\n" +
                "    enum AInner implements Runnable {\n" +
                "        A {\n" +
                "            public void run() {}\n" +
                "        };\n" +
                "    }\n" +
                "    AInner aInner() {\n" +
                "        return null;\n" +
                "    }\n" +
                "}\n",
                "class B {\n" +
                "    void test(A a) {;\n" +
                "        System.err.println(a.aInner().toString());\n" +
                "    };\n" +
                "}");
    }

    void runTest(String aJava, String bJava) throws Exception {
        try (JavaFileManager fm = ToolProvider.getSystemJavaCompiler().getStandardFileManager(null, null, null)) {
            ToolBox tb = new ToolBox();
            ToolBox.MemoryFileManager memoryFM1 = new ToolBox.MemoryFileManager(fm);
            new JavacTask(tb).fileManager(memoryFM1)
                              .sources(aJava, bJava)
                              .run();
            ToolBox.MemoryFileManager memoryFM2 = new ToolBox.MemoryFileManager(fm);
            new JavacTask(tb).fileManager(memoryFM2)
                              .sources(bJava, aJava)
                              .run();

            Assert.check(Arrays.equals(memoryFM1.getFileBytes(StandardLocation.CLASS_OUTPUT, "B"),
                                       memoryFM2.getFileBytes(StandardLocation.CLASS_OUTPUT, "B")));
        }
    }
}