91 lines
3.3 KiB
Java
91 lines
3.3 KiB
Java
/*
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* Copyright (c) 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 8325530
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* @summary Test that failed VirtualMachine.loadAgentPath/loadAgentLibrary reports detailed reason
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* @requires vm.jvmti
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* @modules jdk.attach
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* @library /test/lib
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* @run driver FailedLoadAgentTest
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*/
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import java.nio.file.Path;
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import com.sun.tools.attach.AgentLoadException;
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import com.sun.tools.attach.VirtualMachine;
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import jdk.test.lib.Platform;
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import jdk.test.lib.Utils;
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import jdk.test.lib.apps.LingeredApp;
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public class FailedLoadAgentTest {
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private static final String jvmtiAgentLib = "FailedLoadAgentTestNotExists";
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private static final String jvmtiAgentPath = getLibPath(jvmtiAgentLib);
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private static String getLibPath(String libName) {
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String fullName = Platform.buildSharedLibraryName(libName);
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return Path.of(Utils.TEST_NATIVE_PATH, fullName).toAbsolutePath().toString();
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}
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private interface TestAction {
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void test() throws Exception;
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}
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private static void test(TestAction action) throws Exception {
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try {
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action.test();
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throw new RuntimeException("AgentLoadException not thrown");
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} catch (AgentLoadException ex) {
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System.out.println("AgentLoadException thrown as expected:");
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ex.printStackTrace(System.out);
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String msg = ex.getMessage();
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// Attach agent prints general "<agent> was not loaded." message on error.
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// But additionally we expect detailed message with the reason.
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String parts[] = msg.split("was not loaded.");
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if (parts.length < 2 || parts[1].isEmpty()) {
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throw new RuntimeException("AgentLoadException message is vague");
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}
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}
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}
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public static void main(String[] args) throws Exception {
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LingeredApp theApp = null;
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try {
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theApp = new LingeredApp();
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LingeredApp.startApp(theApp, "-XX:+EnableDynamicAgentLoading");
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VirtualMachine vm = VirtualMachine.attach(Long.toString(theApp.getPid()));
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// absolute path
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test(() -> vm.loadAgentPath(jvmtiAgentPath));
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// relative path
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test(() -> vm.loadAgentLibrary(jvmtiAgentLib));
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} finally {
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LingeredApp.stopApp(theApp);
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}
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}
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}
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