60 lines
2.6 KiB
Java
60 lines
2.6 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
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* @compile ../common/Foo.java
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* I.java
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* ../common/J.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 LinkageError exceptions are not thrown during itable creation,
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// for loader constraint errors, if the target method is an overpass method.
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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 J. But, the selected method is an overpass method (that throws an
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// ICCE). So, no LinkageError exception should be thrown because the loader
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// constraint check that would cause the LinkageError should not be done.
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public static void main(String... args) throws Exception {
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Class<?> c = test.Foo.class; // forces standard class loader to load Foo
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ClassLoader l = new PreemptingClassLoader("test.Task", "test.Foo", "test.C", "test.I");
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Runnable r = (Runnable) l.loadClass("test.Task").newInstance();
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try {
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r.run(); // Cause an ICCE because both I and J define m()LFoo;
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throw new RuntimeException("Expected ICCE exception not thrown");
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} catch (IncompatibleClassChangeError e) {
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if (!e.getMessage().contains("Conflicting default methods: test/I.m test/J.m")) {
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throw new RuntimeException("Wrong ICCE exception thrown: " + e.getMessage());
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}
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}
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}
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}
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