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/*
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
/*
* @test
* @compile pkg/Grand.java pkg/Parent.java pkg/ClassLoaderForParentFoo.java
* @compile pkg/ClassLoaderForChildGrandFoo.java pkg/Child.jasm
* @run main/othervm LdrCnstrFldMsgTest
*/
import java.lang.reflect.Method;
// Check that LinkageError loader constraint message for fields contains the
// correct information.
//
// The test creates two class loaders. The first class loader loads classes
// Child, Foo, and Grand. The second class loader loads Parent and Foo. Class
// Parent is a sub-class of Grand and class Child is a sub-class of Parent.
// Class Child tries to load Parent._field1. This should fail because type Foo
// for Parent._field1 is a different type than Child's Foo.
//
public class LdrCnstrFldMsgTest {
public static void main(String... args) throws Exception {
ClassLoader l = new pkg.ClassLoaderForChildGrandFoo("pkg.Foo", "pkg.Child", "pkg.Grand");
l.loadClass("pkg.Foo");
// Try to call a public method in Grand.
Runnable r = (Runnable) l.loadClass("pkg.Child").newInstance();
try {
r.run();
throw new RuntimeException("Expected LinkageError exception not thrown");
} catch (java.lang.LinkageError e) {
if (!e.getMessage().contains("for the field's defining type, pkg.Parent,") ||
!e.getMessage().contains("have different Class objects for type pkg.Foo")) {
throw new RuntimeException("Wrong LinkageError exception thrown: " + e.toString());
}
}
}
}
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