73 lines
2.9 KiB
Java
73 lines
2.9 KiB
Java
/*
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* Copyright (c) 2021, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8245432
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* @modules jdk.compiler
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* @library /test/lib
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* @build jdk.test.lib.Utils
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* jdk.test.lib.compiler.CompilerUtils
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* @run testng PreviewHiddenClass
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* @summary verify UnsupportedClassVersionError thrown when defining a hidden class
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* with preview minor version but --enable-preview is not set
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* @comment This test itself cannot enablePreview, or hidden class definition
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* will pass
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*/
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import java.io.ByteArrayInputStream;
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import java.io.DataInputStream;
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import java.lang.invoke.MethodHandles;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import jdk.test.lib.compiler.CompilerUtils;
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import jdk.test.lib.Utils;
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import org.testng.annotations.Test;
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import static org.testng.Assert.*;
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public class PreviewHiddenClass {
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private static final Path SRC_DIR = Paths.get(Utils.TEST_SRC, "src");
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private static final Path CLASSES_DIR = Paths.get("classes");
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@Test(expectedExceptions = { UnsupportedClassVersionError.class })
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public void previewNotEnabled() throws Exception {
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// compile a class with --enable-preview
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Path sourceFile = SRC_DIR.resolve("HiddenInterface.java");
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String[] options = new String[] {
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"--enable-preview", "-source", String.valueOf(Runtime.version().feature()), "-XDforcePreview" };
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if (!CompilerUtils.compile(sourceFile, CLASSES_DIR, options)) {
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throw new RuntimeException("Compilation of the test failed: " + sourceFile);
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}
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byte[] bytes = Files.readAllBytes(CLASSES_DIR.resolve("HiddenInterface.class"));
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var dis = new DataInputStream(new ByteArrayInputStream(bytes));
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dis.skipBytes(4); // 0xCAFEBABE
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assertEquals(dis.readUnsignedShort(), 65535); // Minor version
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MethodHandles.lookup().defineHiddenClass(bytes, false);
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}
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}
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