test/tools/javac/ConstantValues/ConstValInit.java

Wed, 27 Apr 2016 01:34:52 +0800

author
aoqi
date
Wed, 27 Apr 2016 01:34:52 +0800
changeset 0
959103a6100f
child 2525
2eb010b6cb22
permissions
-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation.
aoqi@0 8 *
aoqi@0 9 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 12 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 13 * accompanied this code).
aoqi@0 14 *
aoqi@0 15 * You should have received a copy of the GNU General Public License version
aoqi@0 16 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 18 *
aoqi@0 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 20 * or visit www.oracle.com if you need additional information or have any
aoqi@0 21 * questions.
aoqi@0 22 */
aoqi@0 23
aoqi@0 24 /*
aoqi@0 25 * @test
aoqi@0 26 * @bug 4253590
aoqi@0 27 * @summary Verify that non-static constant fields are initialized correctly.
aoqi@0 28 * Also, while a runtime initialization is required, verify that
aoqi@0 29 * references to such fields via a simple variable are correctly
aoqi@0 30 * recognized as constant expressions.
aoqi@0 31 * @author maddox (adapted from bug report)
aoqi@0 32 *
aoqi@0 33 * @run compile ConstValInit.java
aoqi@0 34 * @run main ConstValInit
aoqi@0 35 */
aoqi@0 36
aoqi@0 37 public class ConstValInit {
aoqi@0 38
aoqi@0 39 public final String fnl_str = "Test string";
aoqi@0 40
aoqi@0 41 public final int fnl_int = 1;
aoqi@0 42
aoqi@0 43 public static void main(String args[]) throws Exception {
aoqi@0 44
aoqi@0 45 Class checksClass = Class.forName("ConstValInit");
aoqi@0 46 ConstValInit checksObject = (ConstValInit)(checksClass.newInstance());
aoqi@0 47 String reflected_fnl_str = (String)checksClass.getField("fnl_str").get(checksObject);
aoqi@0 48 if (!checksObject.fnl_str.equals(reflected_fnl_str)) {
aoqi@0 49 throw new Exception("FAILED: ordinary and reflected field values differ");
aoqi@0 50 }
aoqi@0 51
aoqi@0 52 }
aoqi@0 53
aoqi@0 54 void foo() {
aoqi@0 55 // Statement below will not compile if fnl_int is not recognized
aoqi@0 56 // as a constant expression.
aoqi@0 57 switch (1) {
aoqi@0 58 case fnl_int: break;
aoqi@0 59 }
aoqi@0 60 }
aoqi@0 61
aoqi@0 62 }

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