langtools/test/tools/javac/ConstantValues/ConstValInit.java
author mikejwre
Wed, 09 Jun 2010 18:56:41 -0700
changeset 5634 895b66935810
parent 5520 86e4b9a9da40
permissions -rw-r--r--
Merge
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/*
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 * Copyright (c) 1999, 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 4253590
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 * @summary Verify that non-static constant fields are initialized correctly.
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 *          Also, while a runtime initialization is required, verify that
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 *          references to such fields via a simple variable are correctly
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 *          recognized as constant expressions.
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 * @author maddox (adapted from bug report)
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 *
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 * @run compile ConstValInit.java
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 * @run main ConstValInit
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 */
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public class ConstValInit {
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    public final String fnl_str = "Test string";
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    public final int fnl_int = 1;
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    public static void main(String args[]) throws Exception {
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        Class checksClass = Class.forName("ConstValInit");
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        ConstValInit checksObject = (ConstValInit)(checksClass.newInstance());
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        String reflected_fnl_str = (String)checksClass.getField("fnl_str").get(checksObject);
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        if (!checksObject.fnl_str.equals(reflected_fnl_str)) {
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            throw new Exception("FAILED: ordinary and reflected field values differ");
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        }
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    }
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    void foo() {
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        // Statement below will not compile if fnl_int is not recognized
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        // as a constant expression.
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        switch (1) {
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            case fnl_int: break;
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        }
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    }
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}