64 lines
2.5 KiB
Java
64 lines
2.5 KiB
Java
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/*
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* Copyright (c) 2017, 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
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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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// Test that the error message is correct when a loader constraint error is
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// detected during vtable creation.
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//
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// In this test, during vtable creation for class Task, method "Task.m()LFoo;"
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// overrides "J.m()LFoo;". But, Task's class Foo and super type J's class Foo
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// are different. So, a LinkageError exception should be thrown because the
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// loader constraint check will fail.
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public static void main(String args[]) throws Exception {
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Class<?> c = Foo.class; // forces standard class loader to load Foo
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ClassLoader l = new PreemptingClassLoader("Task", "Foo", "I");
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l.loadClass("Foo");
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try {
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l.loadClass("Task").newInstance();
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throw new RuntimeException("Expected LinkageError exception not thrown");
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} catch (LinkageError e) {
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if (!e.getMessage().contains(
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"loader constraint violation for class Task: when selecting overriding method") ||
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!e.getMessage().contains(
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"for its super type J have different Class objects for the type Foo")) {
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throw new RuntimeException("Wrong LinkageError exception thrown: " + e.getMessage());
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}
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}
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}
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}
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