177 lines
8.0 KiB
Java
177 lines
8.0 KiB
Java
/*
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* Copyright (c) 2024, Red Hat, Inc.
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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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import java.io.IOException;
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import java.nio.file.FileVisitResult;
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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.SimpleFileVisitor;
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import java.nio.file.attribute.BasicFileAttributes;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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import tests.Helper;
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import tests.JImageGenerator;
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/*
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* @test
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* @summary Compare packaged-modules jlink with a run-time image based jlink to
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* produce the same result
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* @requires (jlink.packagedModules & vm.compMode != "Xcomp" & os.maxMemory >= 2g)
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* @library ../../lib /test/lib
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* @enablePreview
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* @modules java.base/jdk.internal.jimage
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* jdk.jlink/jdk.tools.jlink.internal
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* jdk.jlink/jdk.tools.jlink.plugin
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* jdk.jlink/jdk.tools.jimage
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* @build tests.* jdk.test.lib.process.OutputAnalyzer
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* jdk.test.lib.process.ProcessTools
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* @run main/othervm/timeout=1200 -Xmx1400m PackagedModulesVsRuntimeImageLinkTest
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*/
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public class PackagedModulesVsRuntimeImageLinkTest extends AbstractLinkableRuntimeTest {
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public static void main(String[] args) throws Exception {
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PackagedModulesVsRuntimeImageLinkTest test = new PackagedModulesVsRuntimeImageLinkTest();
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test.run();
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}
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@Override
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void runTest(Helper helper, boolean isLinkableRuntime) throws Exception {
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// create a java.se using jmod-less approach
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BaseJlinkSpecBuilder builder = new BaseJlinkSpecBuilder()
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.helper(helper)
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.name("java-se-jmodless")
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.addModule("java.se")
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.validatingModule("java.se");
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if (isLinkableRuntime) {
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builder.setLinkableRuntime();
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}
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Path javaSEruntimeLink = createJavaImageRuntimeLink(builder.build());
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// create a java.se using packaged modules (jmod-full)
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Path javaSEJmodFull = JImageGenerator.getJLinkTask()
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.output(helper.createNewImageDir("java-se-jmodfull"))
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.addMods("java.se").call().assertSuccess();
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System.out.println("Now comparing jmod-less and jmod-full) images");
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compareRecursively(javaSEruntimeLink, javaSEJmodFull);
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}
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// Visit all files in the given directories checking that they're byte-by-byte identical
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private static void compareRecursively(Path javaSEJmodLess,
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Path javaSEJmodFull) throws IOException, AssertionError {
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FilesCapturingVisitor jmodFullVisitor = new FilesCapturingVisitor(javaSEJmodFull);
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FilesCapturingVisitor jmodLessVisitor = new FilesCapturingVisitor(javaSEJmodLess);
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Files.walkFileTree(javaSEJmodFull, jmodFullVisitor);
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Files.walkFileTree(javaSEJmodLess, jmodLessVisitor);
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List<String> jmodFullFiles = jmodFullVisitor.filesVisited();
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List<String> jmodLessFiles = jmodLessVisitor.filesVisited();
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Collections.sort(jmodFullFiles);
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Collections.sort(jmodLessFiles);
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if (jmodFullFiles.size() != jmodLessFiles.size()) {
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throw new AssertionError(String.format("Size of files different for jmod-less (%d) vs jmod-full (%d) java.se jlink", jmodLessFiles.size(), jmodFullFiles.size()));
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}
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String jimageFile = Path.of("lib").resolve("modules").toString();
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// Compare all files except the modules image
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for (int i = 0; i < jmodFullFiles.size(); i++) {
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String jmodFullPath = jmodFullFiles.get(i);
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String jmodLessPath = jmodLessFiles.get(i);
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if (!jmodFullPath.equals(jmodLessPath)) {
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throw new AssertionError(String.format("jmod-full path (%s) != jmod-less path (%s)", jmodFullPath, jmodLessPath));
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}
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if (jmodFullPath.equals(jimageFile)) {
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continue;
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}
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Path a = javaSEJmodFull.resolve(Path.of(jmodFullPath));
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Path b = javaSEJmodLess.resolve(Path.of(jmodLessPath));
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if (Files.mismatch(a, b) != -1L) {
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handleFileMismatch(a, b);
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}
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}
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// Compare jimage contents by iterating its entries and comparing their
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// paths and content bytes
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//
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// Note: The files aren't byte-by-byte comparable (probably due to string hashing
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// and offset differences in container bytes)
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Path jimageJmodLess = javaSEJmodLess.resolve(Path.of("lib")).resolve(Path.of("modules"));
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Path jimageJmodFull = javaSEJmodFull.resolve(Path.of("lib")).resolve(Path.of("modules"));
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List<String> jimageContentJmodLess = JImageHelper.listContents(jimageJmodLess);
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List<String> jimageContentJmodFull = JImageHelper.listContents(jimageJmodFull);
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if (jimageContentJmodLess.size() != jimageContentJmodFull.size()) {
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throw new AssertionError(String.format("Size of jimage content differs for jmod-less (%d) v. jmod-full (%d)", jimageContentJmodLess.size(), jimageContentJmodFull.size()));
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}
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for (int i = 0; i < jimageContentJmodFull.size(); i++) {
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if (!jimageContentJmodFull.get(i).equals(jimageContentJmodLess.get(i))) {
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throw new AssertionError(String.format("Jimage content differs at index %d: jmod-full was: '%s' jmod-less was: '%s'",
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i,
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jimageContentJmodFull.get(i),
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jimageContentJmodLess.get(i)
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));
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}
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String loc = jimageContentJmodFull.get(i);
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if (isTreeInfoResource(loc)) {
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// Skip container bytes as those are offsets to the content
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// of the container which might be different between jlink runs.
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continue;
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}
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byte[] resBytesFull = JImageHelper.getLocationBytes(loc, jimageJmodFull);
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byte[] resBytesLess = JImageHelper.getLocationBytes(loc, jimageJmodLess);
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if (resBytesFull.length != resBytesLess.length || Arrays.mismatch(resBytesFull, resBytesLess) != -1) {
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throw new AssertionError("Content bytes mismatch for " + loc);
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}
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}
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}
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private static boolean isTreeInfoResource(String path) {
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return path.startsWith("/packages") || path.startsWith("/modules");
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}
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private static void handleFileMismatch(Path a, Path b) {
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throw new AssertionError("Files mismatch: " + a + " vs. " + b);
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}
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static class FilesCapturingVisitor extends SimpleFileVisitor<Path> {
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private final Path basePath;
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private final List<String> filePaths = new ArrayList<>();
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public FilesCapturingVisitor(Path basePath) {
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this.basePath = basePath;
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}
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@Override
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public FileVisitResult visitFile(Path path, BasicFileAttributes attrs) {
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Path relative = basePath.relativize(path);
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filePaths.add(relative.toString());
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return FileVisitResult.CONTINUE;
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}
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List<String> filesVisited() {
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return filePaths;
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}
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}
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}
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