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/*
* Copyright (c) 2017, 2023, 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
* @modules java.base/jdk.internal.classfile
* java.base/jdk.internal.classfile.attribute
* java.base/jdk.internal.classfile.constantpool
* java.base/jdk.internal.module
* @library /test/lib
* @build jdk.test.lib.util.ModuleInfoWriter
* @run testng ClassFileVersionsTest
* @summary Test parsing of module-info.class with different class file versions
*/
import java.lang.module.InvalidModuleDescriptorException;
import java.lang.module.ModuleDescriptor;
import java.lang.module.ModuleDescriptor.Requires.Modifier;
import java.nio.ByteBuffer;
import java.util.Set;
import static java.lang.module.ModuleDescriptor.Requires.Modifier.*;
import jdk.test.lib.util.ModuleInfoWriter;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
public class ClassFileVersionsTest {
private static final int FEATURE;
static {
FEATURE = Runtime.version().feature();
assert FEATURE >= 10;
}
// major, minor, modifiers for requires java.base
@DataProvider(name = "supported")
public Object[][] supported() {
/*
* There are four test cases for JDK 9 and then one test case
* for each subsequent JDK version from JDK 10 to the current
* feature release for a total of (4 + (FEATURE - 9) ) =>
* (feature - 5) rows.
*/
Object[][] result = new Object[(FEATURE - 5)][];
// Class file version of JDK 9 is 53.0
result[0] = new Object[]{ 53, 0, Set.of()};
result[1] = new Object[]{ 53, 0, Set.of(STATIC) };
result[2] = new Object[]{ 53, 0, Set.of(TRANSITIVE) };
result[3] = new Object[]{ 53, 0, Set.of(STATIC, TRANSITIVE) };
// Major class file version of JDK N is 44 + n. Create rows
// for JDK 10 through FEATURE.
for (int i = 4; i < (FEATURE - 5) ; i++) {
result[i] = new Object[]{i + 50, 0, Set.of()};
}
return result;
}
// major, minor, modifiers for requires java.base
@DataProvider(name = "unsupported")
public Object[][] unsupported() {
/*
* There are three test cases for releases prior to JDK 9,
* three test cases for each JDK version from JDK 10 to the
* current feature release, plus one addition test case for
* the next release for a total of (3 + (FEATURE - 9) * 3 + 1)
* rows.
*/
int unsupportedCount = 3 + (FEATURE - 9)*3 + 1;
Object[][] result = new Object[unsupportedCount][];
result[0] = new Object[]{50, 0, Set.of()}; // JDK 6
result[1] = new Object[]{51, 0, Set.of()}; // JDK 7
result[2] = new Object[]{52, 0, Set.of()}; // JDK 8
for (int i = 10; i <= FEATURE ; i++) {
int base = 3 + (i-10)*3;
// Major class file version of JDK N is 44+n
result[base] = new Object[]{i + 44, 0, Set.of(STATIC)};
result[base + 1] = new Object[]{i + 44, 0, Set.of(TRANSITIVE)};
result[base + 2] = new Object[]{i + 44, 0, Set.of(STATIC, TRANSITIVE)};
}
result[unsupportedCount - 1] = new Object[]{FEATURE+1+44, 0, Set.of()};
return result;
}
@Test(dataProvider = "supported")
public void testSupported(int major, int minor, Set<Modifier> ms) {
ModuleDescriptor descriptor = ModuleDescriptor.newModule("foo")
.requires(ms, "java.base")
.build();
ByteBuffer bb = ModuleInfoWriter.toByteBuffer(descriptor);
classFileVersion(bb, major, minor);
descriptor = ModuleDescriptor.read(bb);
assertEquals(descriptor.name(), "foo");
}
@Test(dataProvider = "unsupported",
expectedExceptions = InvalidModuleDescriptorException.class)
public void testUnsupported(int major, int minor, Set<Modifier> ms) {
ModuleDescriptor descriptor = ModuleDescriptor.newModule("foo")
.requires(ms, "java.base")
.build();
ByteBuffer bb = ModuleInfoWriter.toByteBuffer(descriptor);
classFileVersion(bb, major, minor);
// throws InvalidModuleDescriptorException
ModuleDescriptor.read(bb);
}
private void classFileVersion(ByteBuffer bb, int major, int minor) {
bb.putShort(4, (short) minor);
bb.putShort(6, (short) major);
}
}
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