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annotate test/runtime/6981737/Test6981737.java @ 3919:4f41766176cf

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7084509: G1: fix inconsistencies and mistakes in the young list target length calculations Summary: Fixed inconsistencies and mistakes in the young list target length calculations so that a) the calculated target length is optimal (before, it was not), b) other parameters like max survivor size and max gc locker eden expansion are always consistent with the calculated target length (before, they were not always), and c) the resulting target length was always bound by desired min and max values (before, it was not). Reviewed-by: brutisso, johnc
author tonyp
date Thu, 08 Sep 2011 05:16:49 -0400
parents 35f885165c69
children
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1 /*
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2 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 /*
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25 * @test Test6981737.java
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26 * @bug 6981737
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27 * @summary check for correct vm properties
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28 * @run main Test6981737
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29 * @author kamg
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30 */
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31
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32 public class Test6981737 {
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33
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34 /**
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35 * Check the 'vendor' properties java.vm.specification.version
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36 * property. Before jdk7, they should be "Sun Micro..." and "1.0".
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37 * In jdk7 onwards they should be "Oracle..." and "1.<major_version>"
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38 */
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39 public static void main(String[] args) throws Exception {
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40
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41 String version = verifyProperty("java.version", "[0-9]+\\.[0-9]+\\..*");
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42 String major_version_spec = version.split("\\.")[1];
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43 int major_version = new Integer(major_version_spec).intValue();
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44
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45 String vendor_re = "Oracle Corporation";
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46 String vm_spec_version_re = "1\\." + major_version_spec;
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47 if (major_version < 7) {
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48 vendor_re = "Sun Microsystems Inc\\.";
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49 vm_spec_version_re = "1\\.0";
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50 }
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51 verifyProperty("java.vendor", vendor_re);
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52 verifyProperty("java.vm.vendor", vendor_re);
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53 verifyProperty("java.vm.specification.vendor", vendor_re);
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54 verifyProperty("java.specification.vendor", vendor_re);
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55 verifyProperty("java.vm.specification.version", vm_spec_version_re);
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56 System.out.println("PASS");
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57 }
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58
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59 public static String verifyProperty(String name, String expected_re) {
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60 String value = System.getProperty(name, "");
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61 System.out.print("Checking " + name + ": \"" + value +
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62 "\".matches(\"" + expected_re + "\")... ");
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63 if (!value.matches(expected_re)) {
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64 System.out.println("no.");
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65 throw new RuntimeException("FAIL: Wrong value for " + name +
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66 " property, \"" + value + "\", expected to be of form: \"" +
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67 expected_re + "\"");
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68 }
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69 System.out.println("yes.");
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70 return value;
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71 }
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72 }