| /* |
| * Copyright (c) 2015, 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 |
| * @summary Unit test for libjimage JIMAGE_Open/Read/Close |
| * @modules java.base/jdk.internal.jimage |
| */ |
| |
| import java.io.File; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.Arrays; |
| |
| import jdk.internal.jimage.BasicImageReader; |
| import jdk.internal.jimage.ImageReader; |
| import jdk.internal.jimage.ImageLocation; |
| |
| import org.testng.annotations.DataProvider; |
| import org.testng.annotations.Optional; |
| import org.testng.annotations.Parameters; |
| import org.testng.annotations.Test; |
| import org.testng.Assert; |
| import org.testng.TestNG; |
| |
| @Test |
| public class JImageReadTest { |
| |
| static String javaHome = System.getProperty("java.home"); |
| static Path imageFile = Paths.get(javaHome, "lib", "modules"); |
| |
| @DataProvider(name="classes") |
| static Object[][] loadClasses() { |
| return new Object[][] { |
| {"java.base", "java/lang/String.class"}, |
| {"java.base", "java/lang/Object.class"}, |
| {"java.base", "sun/reflect/generics/tree/TypeArgument.class"}, |
| {"java.base", "sun/net/www/content-types.properties"}, |
| {"java.logging", "java/util/logging/Logger.class"}, |
| {"java.base", "java/NOSUCHCLASS/yyy.class"}, // non-existent |
| {"NOSUCHMODULE", "java/lang/Class.class"}, // non-existent |
| }; |
| } |
| |
| /** |
| * Test a class is correctly accessible from the image in a module. |
| * |
| * @param moduleName the module name |
| * @param className the classname |
| * @throws Exception is thrown if there is a test error |
| */ |
| @Test(dataProvider="classes") |
| public static void test1_ReadClasses(String moduleName, String className) throws Exception { |
| final int classMagic = 0xCAFEBABE; |
| |
| if (!Files.exists(imageFile)) { |
| System.out.printf("Test skipped; no jimage file"); |
| return; |
| } |
| |
| BasicImageReader reader = BasicImageReader.open(imageFile); |
| Assert.assertTrue(reader != null, "JIMAGE_Open failed: " + imageFile); |
| |
| ImageLocation location = reader.findLocation(moduleName, className); |
| |
| if (location != null && !location.verify("/" + moduleName + "/" + className)) { |
| location = null; |
| } |
| |
| long size = location != null ? location.getUncompressedSize() : 0; |
| |
| System.out.printf("reading: module: %s, path: %s, size: %d%n", |
| moduleName, className, size); |
| if (moduleName.contains("NOSUCH") || className.contains("NOSUCH")) { |
| Assert.assertTrue(location == null, |
| "location found for non-existing module: " |
| + moduleName |
| + ", or class: " + className); |
| return; // no more to test for non-existing class |
| } else { |
| Assert.assertTrue(location != null, "location not found: " + className); |
| Assert.assertTrue(size > 0, "size of should be > 0: " + className); |
| } |
| |
| // positive: read whole class |
| ByteBuffer buffer = reader.getResourceBuffer(location); |
| Assert.assertTrue(buffer != null, "bytes read not equal bytes requested"); |
| |
| if (className.endsWith(".class")) { |
| int m = buffer.getInt(); |
| Assert.assertEquals(m, classMagic, "Classfile has bad magic number"); |
| } |
| |
| reader.close(); |
| } |
| |
| /** |
| * For all the resource names, check the name and approximate count. |
| * |
| * @throws IOException thrown if an error occurs |
| */ |
| @Test |
| static void test2_ImageResources() throws IOException { |
| if (!Files.exists(imageFile)) { |
| System.out.printf("Test skipped; no jimage file"); |
| return; |
| } |
| |
| BasicImageReader reader = BasicImageReader.open(imageFile); |
| Assert.assertTrue(reader != null, "JIMAGE_Open failed: " + imageFile); |
| |
| String[] names = reader.getEntryNames(); |
| |
| // Repeat with count available |
| int count = names.length; |
| |
| System.out.printf(" count: %d, a class: %s\n", count, names[0]); |
| |
| int minEntryCount = 16000; |
| Assert.assertTrue(minEntryCount < count, |
| "unexpected count of entries, count: " + count |
| + ", min: " + minEntryCount); |
| for (int i = 0; i < count; i++) { |
| checkFullName(names[i]); |
| } |
| |
| reader.close(); |
| } |
| |
| static void checkFullName(String path) { |
| if (path.startsWith("/packages") || path.startsWith("/modules")) { |
| return; |
| } |
| |
| int next = 0; |
| String m = null; |
| String p = null; |
| String b = null; |
| String e = null; |
| if (path.startsWith("/")) { |
| next = path.indexOf('/', 1); |
| m = path.substring(1, next); |
| next = next + 1; |
| } |
| int lastSlash = path.lastIndexOf('/'); |
| if (lastSlash > next) { |
| // has a parent |
| p = path.substring(next, lastSlash); |
| next = lastSlash + 1; |
| } |
| int period = path.indexOf('.', next); |
| if (period > next) { |
| b = path.substring(next, period); |
| e = path.substring(period + 1); |
| } else { |
| b = path.substring(next); |
| } |
| Assert.assertNotNull(m, "module must be non-empty"); |
| Assert.assertNotNull(b, "base name must be non-empty"); |
| } |
| |
| /** |
| * Verify that all of the resource names from BasicImageReader |
| * match those returned from the native JIMAGE_Resources iterator. |
| * Names that start with /modules, /packages, and bootmodules.jdata |
| * must appear in the names from JIMAGE_Resource iterator; |
| * from the BasicImageReader they are ignored. |
| */ |
| @Test |
| static void test3_verifyNames() { |
| if (!Files.exists(imageFile)) { |
| System.out.printf("Test skipped; no jimage file"); |
| return; |
| } |
| |
| try { |
| String[] names = BasicImageReader_Names(); |
| //writeNames("/tmp/basic-names.txt", names); // debug |
| |
| // Read all the names from the native JIMAGE API |
| String[] nativeNames = JIMAGE_Names(); |
| //writeNames("/tmp/native-names.txt", nativeNames); // debug |
| |
| |
| int modCount = 0; |
| int pkgCount = 0; |
| int otherCount = 0; |
| for (String n : nativeNames) { |
| if (n.startsWith("/modules/")) { |
| modCount++; |
| } else if (n.startsWith("/packages/")) { |
| pkgCount++; |
| } else { |
| otherCount++; |
| } |
| } |
| System.out.printf("native name count: %d, modCount: %d, pkgCount: %d, otherCount: %d%n", |
| names.length, modCount, pkgCount, otherCount); |
| |
| // Sort and merge the two arrays. Every name should appear exactly twice. |
| Arrays.sort(names); |
| Arrays.sort(nativeNames); |
| String[] combined = Arrays.copyOf(names, nativeNames.length + names.length); |
| System.arraycopy(nativeNames,0, combined, names.length, nativeNames.length); |
| Arrays.sort(combined); |
| int missing = 0; |
| for (int i = 0; i < combined.length; i++) { |
| String s = combined[i]; |
| if (isMetaName(s)) { |
| // Ignore /modules and /packages in BasicImageReader names |
| continue; |
| } |
| |
| if (i < combined.length - 1 && s.equals(combined[i + 1])) { |
| i++; // string appears in both java and native |
| continue; |
| } |
| |
| missing++; |
| int ndx = Arrays.binarySearch(names, s); |
| String which = (ndx >= 0) ? "java BasicImageReader" : "native JIMAGE_Resources"; |
| System.out.printf("Missing Resource: %s found only via %s%n", s, which); |
| } |
| Assert.assertEquals(missing, 0, "Resources missing"); |
| |
| } catch (IOException ioe) { |
| Assert.fail("I/O exception", ioe); |
| } |
| } |
| |
| /** |
| * Return true if the name is one of the meta-data names |
| * @param name a name |
| * @return return true if starts with either /packages or /modules |
| */ |
| static boolean isMetaName(String name) { |
| return name.startsWith("/modules") |
| || name.startsWith("/packages") |
| || name.startsWith("META-INF") |
| || name.equals("bootmodules.jdata"); |
| } |
| |
| /** |
| * Return all of the names from BasicImageReader. |
| * @return the names returned from BasicImageReader |
| */ |
| static String[] BasicImageReader_Names() throws IOException { |
| String[] names = null; |
| try (BasicImageReader reader = BasicImageReader.open(imageFile)) { |
| names = reader.getEntryNames(); |
| } catch (IOException ioe) { |
| Assert.fail("I/O exception", ioe); |
| } |
| return names; |
| } |
| |
| /** |
| * Returns an array of all of the names returned from JIMAGE_Resources |
| */ |
| static String[] JIMAGE_Names() throws IOException { |
| |
| BasicImageReader reader = BasicImageReader.open(imageFile); |
| Assert.assertNotNull(reader, "JIMAGE_Open failed: " + imageFile); |
| |
| String[] names = reader.getEntryNames(); |
| |
| reader.close(); |
| |
| return names; |
| } |
| |
| // Write an array of names to a file for debugging |
| static void writeNames(String fname, String[] names) throws IOException { |
| try (FileWriter wr = new FileWriter(new File(fname))) { |
| for (String s : names) { |
| wr.write(s); |
| wr.write("\n"); |
| } |
| |
| } |
| System.out.printf(" %s: %d names%n", fname, names.length); |
| } |
| |
| //@Test |
| static void test4_nameTooLong() throws IOException { |
| long[] size = new long[1]; |
| String moduleName = "FictiousModuleName"; |
| String className = String.format("A%09999d", 1); |
| |
| BasicImageReader reader = BasicImageReader.open(imageFile); |
| Assert.assertNotNull(reader, "JIMAGE_Open failed: " + imageFile); |
| |
| String name = "/" + moduleName + "/" + className; |
| ImageLocation location = reader.findLocation(name); |
| |
| if (location != null && !location.verify(name)) { |
| location = null; |
| } |
| Assert.assertTrue(location == null, "Too long name should have failed"); |
| |
| reader.close(); |
| } |
| |
| /** |
| * Verify that the ImageReader returned by ImageReader.open has the |
| * the requested endianness or fails with an IOException if not. |
| */ |
| @Test |
| static void test5_imageReaderEndianness() throws IOException { |
| ImageReader nativeReader = ImageReader.open(imageFile); |
| Assert.assertEquals(nativeReader.getByteOrder(), ByteOrder.nativeOrder()); |
| |
| try { |
| ImageReader leReader = ImageReader.open(imageFile, ByteOrder.LITTLE_ENDIAN); |
| Assert.assertEquals(leReader.getByteOrder(), ByteOrder.LITTLE_ENDIAN); |
| leReader.close(); |
| } catch (IOException io) { |
| // IOException expected if LITTLE_ENDIAN not the nativeOrder() |
| Assert.assertNotEquals(ByteOrder.nativeOrder(), ByteOrder.LITTLE_ENDIAN); |
| } |
| |
| try { |
| ImageReader beReader = ImageReader.open(imageFile, ByteOrder.BIG_ENDIAN); |
| Assert.assertEquals(beReader.getByteOrder(), ByteOrder.BIG_ENDIAN); |
| beReader.close(); |
| } catch (IOException io) { |
| // IOException expected if LITTLE_ENDIAN not the nativeOrder() |
| Assert.assertNotEquals(ByteOrder.nativeOrder(), ByteOrder.BIG_ENDIAN); |
| } |
| |
| nativeReader.close(); |
| } |
| // main method to run standalone from jtreg |
| |
| @Test(enabled=false) |
| @Parameters({"x"}) |
| @SuppressWarnings("raw_types") |
| public static void main(@Optional String[] args) { |
| Class<?>[] testclass = { JImageReadTest.class}; |
| TestNG testng = new TestNG(); |
| testng.setTestClasses(testclass); |
| testng.run(); |
| } |
| |
| } |