130 lines
5.3 KiB
Java
130 lines
5.3 KiB
Java
/*
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* Copyright (c) 2017, 2024, 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 8056900 8338888
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* @summary Verifies message returned with NoClassDefFoundError exception.
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* java.compiler
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* @run main/native/othervm -Xlog:exceptions=info NoClassDefFoundErrorTest
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*/
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import jdk.test.lib.compiler.InMemoryJavaCompiler;
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import jdk.internal.misc.Unsafe;
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public class NoClassDefFoundErrorTest {
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// Use the specified name
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static native void callDefineClass(String className);
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static native void callFindClass(String className);
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// Use a name longer than a Java string - returns false
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// if native allocation failed.
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static native boolean tryCallDefineClass();
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static native boolean tryCallFindClass();
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static {
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System.loadLibrary("NoClassDefFoundErrorTest");
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}
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public static void main(String args[]) throws Exception {
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Unsafe unsafe = Unsafe.getUnsafe();
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byte klassbuf[] = InMemoryJavaCompiler.compile("TestClass", "class TestClass { }");
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// Create a class name of length 65536.
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StringBuilder tooBigClassName = new StringBuilder("z");
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for (int x = 0; x < 16; x++) {
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tooBigClassName = tooBigClassName.append(tooBigClassName);
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}
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System.out.println("Test JVM_DefineClass() with long name");
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try {
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unsafe.defineClass(tooBigClassName.toString(), klassbuf, 4, klassbuf.length - 4, null, null);
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throw new RuntimeException("defineClass did not throw expected NoClassDefFoundError");
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} catch (NoClassDefFoundError e) {
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if (!e.getMessage().contains("Class name exceeds maximum length of ")) {
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throw new RuntimeException("Wrong NoClassDefFoundError: " + e.getMessage());
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}
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}
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System.out.println("Test JNI_DefineClass() with long name");
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try {
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callDefineClass(tooBigClassName.toString());
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throw new RuntimeException("DefineClass did not throw expected NoClassDefFoundError");
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} catch (NoClassDefFoundError e) {
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if (!e.getMessage().contains("Class name exceeds maximum length of ")) {
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throw new RuntimeException("Wrong NoClassDefFoundError: " + e.getMessage());
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}
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}
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System.out.println("Test JNI_FindClass() with long name");
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try {
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callFindClass(tooBigClassName.toString());
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throw new RuntimeException("FindClass did not throw expected NoClassDefFoundError");
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} catch (NoClassDefFoundError e) {
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if (!e.getMessage().contains("Class name exceeds maximum length of ")) {
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throw new RuntimeException("Wrong NoClassDefFoundError: " + e.getMessage());
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}
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}
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System.out.println("Test JNI_FindClass() with null name");
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try {
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callFindClass(null);
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throw new RuntimeException("FindClass did not throw expected NoClassDefFoundError");
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} catch (NoClassDefFoundError e) {
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if (!e.getMessage().contains("No class name given")) {
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throw new RuntimeException("Wrong NoClassDefFoundError: " + e.getMessage());
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}
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}
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System.out.println("Test JNI_DefineClass() with giant name");
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try {
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if (tryCallDefineClass()) {
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throw new RuntimeException("DefineClass did not throw expected NoClassDefFoundError");
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} else {
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System.out.println("Test skipped due to native allocation failure");
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}
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} catch (NoClassDefFoundError e) {
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if (!e.getMessage().contains("Class name exceeds maximum length of ")) {
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throw new RuntimeException("Wrong NoClassDefFoundError: " + e.getMessage());
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}
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}
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System.out.println("Test JNI_FindClass() with giant name");
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try {
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if (tryCallFindClass()) {
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throw new RuntimeException("FindClass did not throw expected NoClassDefFoundError");
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} else {
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System.out.println("Test skipped due to native allocation failure");
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}
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} catch (NoClassDefFoundError e) {
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if (!e.getMessage().contains("Class name exceeds maximum length of ")) {
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throw new RuntimeException("Wrong NoClassDefFoundError: " + e.getMessage());
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}
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}
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}
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}
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