75 lines
2.5 KiB
Java
75 lines
2.5 KiB
Java
/*
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* Copyright (c) 2021, 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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// Create a class to load inside the loader instance, that will load
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// A through a constant pool reference.
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// Class A extends B extends A
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class CP1 {
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void foo() throws Exception {
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ThreadPrint.println("CP1.foo()");
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try {
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Class<?> a = A.class;
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Object obj = a.getConstructor().newInstance();
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throw new RuntimeException("Should throw CCE here");
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} catch (Throwable e) {
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ThreadPrint.println("Exception is caught: " + e);
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if (!(e instanceof java.lang.ClassCircularityError)) {
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throw new RuntimeException("Unexpected exception");
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}
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}
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}
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}
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// This class has a constant pool reference to B which will also get CCE, but
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// starting at B.
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class CP2 {
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void foo() throws Exception {
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ThreadPrint.println("CP2.foo()");
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try {
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Class<?> a = B.class;
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Object obj = a.getConstructor().newInstance();
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throw new RuntimeException("Should throw CCE here");
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} catch (Throwable e) {
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ThreadPrint.println("Exception is caught: " + e);
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if (!(e instanceof java.lang.ClassCircularityError)) {
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throw new RuntimeException("Unexpected exception");
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}
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}
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}
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}
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public class ClassInLoader {
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private static boolean first = true;
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public ClassInLoader() throws Exception {
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ThreadPrint.println("ClassInLoader");
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if (first) {
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first = false;
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CP1 c1 = new CP1();
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c1.foo();
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} else {
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CP2 c2 = new CP2();
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c2.foo();
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}
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}
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}
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