97 lines
5.5 KiB
Java
97 lines
5.5 KiB
Java
/*
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* Copyright (c) 2017, 2018, 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 8186092 8199852
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* @compile ../common/Foo.java
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* ../common/J.java
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* I.java
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* ../common/C.jasm
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* Task.java
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* ../common/PreemptingClassLoader.java
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* @run main/othervm Test
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*/
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public class Test {
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// Break expected error messages into 3 parts since the loader name includes its identity
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// hash which is unique and can't be compared against.
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static String expectedErrorMessage1_part1 = "loader constraint violation in interface itable initialization for " +
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"class test.C: when selecting method 'test.Foo test.I.m()' the class loader " +
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"PreemptingClassLoader @";
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static String expectedErrorMessage1_part2 = " for super interface test.I, and the class loader 'app' of the " +
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"selected method's interface, test.J have different Class objects for the " +
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"type test.Foo used in the signature (test.I is in unnamed module of loader " +
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"PreemptingClassLoader @";
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static String expectedErrorMessage1_part3 = ", parent loader 'app'; test.J is in unnamed module of loader 'app')";
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static String expectedErrorMessage2_part1 = "loader constraint violation in interface itable initialization for " +
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"class test.C: when selecting method 'test.Foo test.I.m()' the class loader " +
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"'ItableLdrCnstrnt_Test_Loader' @";
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static String expectedErrorMessage2_part2 = " for super interface test.I, and the class loader 'app' of the " +
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"selected method's interface, test.J have different Class objects for the " +
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"type test.Foo used in the signature (test.I is in unnamed module of loader " +
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"'ItableLdrCnstrnt_Test_Loader' @";
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static String expectedErrorMessage2_part3 = ", parent loader 'app'; test.J is in unnamed module of loader 'app')";
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// Test that the error message is correct when a loader constraint error is
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// detected during itable creation.
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//
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// In this test, during itable creation for class C, method "m()LFoo;" for
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// C's super interface I has a different class Foo than the selected method's
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// type super interface J. The selected method is not an overpass method nor
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// otherwise excluded from loader constraint checking. So, a LinkageError
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// exception should be thrown because the loader constraint check will fail.
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public static void test(String loaderName,
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String expectedErrorMessage_part1,
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String expectedErrorMessage_part2,
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String expectedErrorMessage_part3) throws Exception {
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Class<?> c = test.Foo.class; // Forces standard class loader to load Foo.
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String[] classNames = {"test.Task", "test.Foo", "test.C", "test.I"};
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ClassLoader l = new PreemptingClassLoader(loaderName, classNames);
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Runnable r = (Runnable) l.loadClass("test.Task").newInstance();
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try {
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r.run();
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throw new RuntimeException("Expected LinkageError exception not thrown");
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} catch (LinkageError e) {
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String errorMsg = e.getMessage();
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if (!errorMsg.contains(expectedErrorMessage_part1) ||
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!errorMsg.contains(expectedErrorMessage_part2) ||
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!errorMsg.contains(expectedErrorMessage_part3)) {
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System.out.println("Expected: " + expectedErrorMessage_part1 + "<id>" +
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expectedErrorMessage_part2 + "<id>" +
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expectedErrorMessage_part3 + "\n" +
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"but got: " + errorMsg);
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throw new RuntimeException("Wrong LinkageError exception thrown: " + errorMsg);
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}
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System.out.println("Passed with message: " + errorMsg);
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}
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}
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public static void main(String... args) throws Exception {
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test(null, expectedErrorMessage1_part1, expectedErrorMessage1_part2, expectedErrorMessage1_part3);
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test("ItableLdrCnstrnt_Test_Loader", expectedErrorMessage2_part1, expectedErrorMessage2_part2, expectedErrorMessage2_part3);
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}
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}
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