1 /*
2 * Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 8246774
27 * @summary InvalidClassException is thrown when the canonical constructor
28 * cannot be found during deserialization.
29 * @library /test/lib
30 * @run junit BadCanonicalCtrTest
31 */
32
33 import java.io.ByteArrayInputStream;
34 import java.io.ByteArrayOutputStream;
35 import java.io.IOException;
36 import java.io.InvalidClassException;
37 import java.io.ObjectInputStream;
38 import java.io.ObjectOutputStream;
39 import java.io.ObjectStreamClass;
40 import java.lang.classfile.ClassTransform;
41 import java.lang.classfile.ClassFile;
42 import java.lang.classfile.MethodModel;
43 import java.lang.constant.MethodTypeDesc;
44
45 import jdk.test.lib.compiler.InMemoryJavaCompiler;
46 import jdk.test.lib.ByteCodeLoader;
47 import static java.lang.System.out;
48 import static java.lang.classfile.ClassFile.ACC_PUBLIC;
49 import static java.lang.constant.ConstantDescs.CD_Object;
50 import static java.lang.constant.ConstantDescs.CD_void;
51 import static java.lang.constant.ConstantDescs.INIT_NAME;
52 import static java.lang.constant.ConstantDescs.MTD_void;
53
54 import org.junit.jupiter.api.Assertions;
55 import static org.junit.jupiter.api.Assertions.assertTrue;
56 import org.junit.jupiter.api.BeforeAll;
57 import org.junit.jupiter.api.TestInstance;
58 import org.junit.jupiter.params.ParameterizedTest;
59 import org.junit.jupiter.params.provider.MethodSource;
60
61 /**
62 * Checks that an InvalidClassException is thrown when the canonical
63 * constructor cannot be found during deserialization.
64 */
65 @TestInstance(TestInstance.Lifecycle.PER_CLASS)
66 public class BadCanonicalCtrTest {
67
68 // ClassLoader for creating instances of the records to test with.
69 ClassLoader goodRecordClassLoader;
70 // ClassLoader that can be used during deserialization. Loads record
71 // classes where the canonical constructor has been removed.
72 ClassLoader missingCtrClassLoader;
203 }
204
205 // -- machinery for augmenting record class bytes --
206
207 /**
208 * Removes the constructor from the given class bytes.
209 * Assumes just a single, canonical, constructor.
210 */
211 static byte[] removeConstructor(byte[] classBytes) {
212 var cf = ClassFile.of();
213 return cf.transformClass(cf.parse(classBytes), ClassTransform.dropping(ce ->
214 ce instanceof MethodModel mm && mm.methodName().equalsString(INIT_NAME)));
215 }
216
217 /**
218 * Modifies the descriptor of the constructor from the given class bytes.
219 * Assumes just a single, canonical, constructor.
220 */
221 static byte[] modifyConstructor(byte[] classBytes) {
222 var cf = ClassFile.of();
223 return cf.transformClass(cf.parse(classBytes), ClassTransform.dropping(ce ->
224 ce instanceof MethodModel mm && mm.methodName().equalsString(INIT_NAME))
225 .andThen(ClassTransform.endHandler(clb -> clb.withMethodBody(INIT_NAME,
226 MethodTypeDesc.of(CD_void, CD_Object), ACC_PUBLIC, cob -> {
227 cob.aload(0);
228 cob.invokespecial(Record.class.describeConstable().orElseThrow(),
229 INIT_NAME, MTD_void);
230 cob.return_();
231 }))));
232 }
233 }
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1 /*
2 * Copyright (c) 2019, 2026, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 8246774
27 * @summary InvalidClassException is thrown when the canonical constructor
28 * cannot be found during deserialization.
29 * @library /test/lib
30 * @run junit BadCanonicalCtrTest
31 */
32
33 import java.io.ByteArrayInputStream;
34 import java.io.ByteArrayOutputStream;
35 import java.io.IOException;
36 import java.io.InvalidClassException;
37 import java.io.ObjectInputStream;
38 import java.io.ObjectOutputStream;
39 import java.io.ObjectStreamClass;
40 import java.lang.classfile.ClassTransform;
41 import java.lang.classfile.ClassFile;
42 import java.lang.classfile.MethodModel;
43 import java.lang.classfile.TypeKind;
44 import java.lang.constant.MethodTypeDesc;
45
46 import jdk.test.lib.compiler.InMemoryJavaCompiler;
47 import jdk.test.lib.ByteCodeLoader;
48 import static java.lang.System.out;
49 import static java.lang.classfile.ClassFile.*;
50 import static java.lang.constant.ConstantDescs.*;
51
52 import org.junit.jupiter.api.Assertions;
53 import static org.junit.jupiter.api.Assertions.assertTrue;
54 import org.junit.jupiter.api.BeforeAll;
55 import org.junit.jupiter.api.TestInstance;
56 import org.junit.jupiter.params.ParameterizedTest;
57 import org.junit.jupiter.params.provider.MethodSource;
58
59 /**
60 * Checks that an InvalidClassException is thrown when the canonical
61 * constructor cannot be found during deserialization.
62 */
63 @TestInstance(TestInstance.Lifecycle.PER_CLASS)
64 public class BadCanonicalCtrTest {
65
66 // ClassLoader for creating instances of the records to test with.
67 ClassLoader goodRecordClassLoader;
68 // ClassLoader that can be used during deserialization. Loads record
69 // classes where the canonical constructor has been removed.
70 ClassLoader missingCtrClassLoader;
201 }
202
203 // -- machinery for augmenting record class bytes --
204
205 /**
206 * Removes the constructor from the given class bytes.
207 * Assumes just a single, canonical, constructor.
208 */
209 static byte[] removeConstructor(byte[] classBytes) {
210 var cf = ClassFile.of();
211 return cf.transformClass(cf.parse(classBytes), ClassTransform.dropping(ce ->
212 ce instanceof MethodModel mm && mm.methodName().equalsString(INIT_NAME)));
213 }
214
215 /**
216 * Modifies the descriptor of the constructor from the given class bytes.
217 * Assumes just a single, canonical, constructor.
218 */
219 static byte[] modifyConstructor(byte[] classBytes) {
220 var cf = ClassFile.of();
221 var classModel = cf.parse(classBytes);
222 return cf.transformClass(cf.parse(classBytes), ClassTransform.dropping(ce ->
223 ce instanceof MethodModel mm && mm.methodName().equalsString(INIT_NAME))
224 .andThen(ClassTransform.endHandler(clb -> clb.withMethodBody(INIT_NAME,
225 MethodTypeDesc.of(CD_void, CD_Object), ACC_PUBLIC, cob -> {
226 // Initialize strict fields, if any
227 for (var field : classModel.fields()) {
228 if ((field.flags().flagsMask() & (ACC_STRICT_INIT | ACC_STATIC)) != ACC_STRICT_INIT) {
229 continue;
230 }
231 var fieldType = field.fieldTypeSymbol();
232 cob.aload(0);
233 switch (TypeKind.from(fieldType).asLoadable()) {
234 case INT -> cob.iconst_0();
235 case LONG -> cob.lconst_0();
236 case FLOAT -> cob.fconst_0();
237 case DOUBLE -> cob.dconst_0();
238 case REFERENCE -> cob.aconst_null();
239 default -> throw new IllegalArgumentException(fieldType.descriptorString());
240 }
241 var cp = cob.constantPool();
242 cob.putfield(cp.fieldRefEntry(classModel.thisClass(), cp.nameAndTypeEntry(field.fieldName(), field.fieldType())));
243 }
244 cob.aload(0);
245 cob.invokespecial(Record.class.describeConstable().orElseThrow(),
246 INIT_NAME, MTD_void);
247 cob.return_();
248 }))));
249 }
250 }
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