--- /dev/null 2019-10-08 18:54:00.000000000 -0700 +++ new/test/jdk/java/lang/invoke/defineHiddenClass/SelfReferenceDescriptor.java 2019-10-08 18:54:00.000000000 -0700 @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2019, 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 + * @library /test/lib + * @build jdk.test.lib.Utils + * jdk.test.lib.compiler.CompilerUtils + * SelfReferenceDescriptor + * @run main/othervm -Xverify:remote SelfReferenceDescriptor + * @summary Test that a hidden class cannot be referenced in descriptor + */ + +import java.io.ByteArrayOutputStream; +import java.io.File; +import java.io.FileInputStream; +import java.io.IOException; +import static java.lang.invoke.MethodHandles.Lookup.ClassOption.*; +import static java.lang.invoke.MethodHandles.lookup; + +import java.nio.file.Files; +import java.nio.file.Path; +import java.nio.file.Paths; +import java.util.Arrays; +import java.util.stream.Stream; + +import jdk.test.lib.compiler.CompilerUtils; + +import jdk.test.lib.Utils; + +/* package-private */ interface Test { + void test(); +} + +public class SelfReferenceDescriptor { + + private static final Path SRC_DIR = Paths.get(Utils.TEST_SRC); + private static final Path CLASSES_DIR = Paths.get("classes"); + + static void compileSources(Path sourceFile, String... options) throws IOException { + Stream ops = Stream.of("-cp", Utils.TEST_CLASSES + File.pathSeparator + CLASSES_DIR); + if (options != null && options.length > 0) { + ops = Stream.concat(ops, Arrays.stream(options)); + } + if (!CompilerUtils.compile(sourceFile, CLASSES_DIR, ops.toArray(String[]::new))) { + throw new RuntimeException("Compilation of the test failed: " + sourceFile); + } + } + + // Test that a hidden class cannot use its own name in a field + // signature. + public static void hiddenClassInFieldDescriptor() throws Exception { + compileSources(SRC_DIR.resolve("SelfRefField.java")); + Path path = CLASSES_DIR.resolve("SelfRefField.class"); + byte[] bytes = Files.readAllBytes(path); + try { + lookup().defineHiddenClass(bytes, false, NESTMATE); + throw new RuntimeException("expected NCDFE in defining SelfRefField hidden class"); + } catch (NoClassDefFoundError e) { + if (!e.getMessage().contains("SelfRefField")) throw e; + } + } + + // Test that a hidden class cannot use its own name in a method + // signature. + public static void hiddenClassInMethodDescriptor() throws Exception { + compileSources(SRC_DIR.resolve("SelfRefMethod.java")); + Path path = CLASSES_DIR.resolve("SelfRefMethod.class"); + byte[] bytes = Files.readAllBytes(path); + try { + lookup().defineHiddenClass(bytes, false, NESTMATE); + throw new RuntimeException("expected NCDFE in defining SelfRefMethod hidden class"); + } catch (NoClassDefFoundError e) { + if (!e.getMessage().contains("SelfRefMethod")) throw e; + } + } + + public static void main(String... args) throws Exception { + hiddenClassInMethodDescriptor(); + hiddenClassInFieldDescriptor(); + } +}