1 /*

     2  * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

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    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

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    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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    23 

    24 /**

    25  * @test

    26  * @bug 8059510

    27  * @summary Test SharedSymbolTableBucketSize option

    28  * @requires vm.cds

    29  * @library /test/lib

    30  * @modules java.base/jdk.internal.misc

    31  *          java.management

    32  */

    33 

    34 import jdk.test.lib.cds.CDSTestUtils;

    35 import jdk.test.lib.process.OutputAnalyzer;

    36 

    37 public class SharedSymbolTableBucketSize {

    38     public static void main(String[] args) throws Exception {

    39         int bucket_size = 8;

    40 

    41         OutputAnalyzer output =

    42             CDSTestUtils.createArchive("-XX:SharedSymbolTableBucketSize="

    43                                        + Integer.valueOf(bucket_size));

    44         CDSTestUtils.checkDump(output);

    45         CDSTestUtils.checkMappingFailure(output);

    46 

    47         String s = output.firstMatch("Average bucket size     : .*");

    48         Float f = Float.parseFloat(s.substring(25));

    49         int size = Math.round(f);

    50         if (size != bucket_size) {

    51             throw new Exception("FAILED: incorrect bucket size " + size +

    52                                 ", expect " + bucket_size);

    53         }

    54 

    55         // Invalid SharedSymbolTableBucketSize input

    56         String input[] = {"-XX:SharedSymbolTableBucketSize=-1",

    57                           "-XX:SharedSymbolTableBucketSize=2.5"};

    58         for (int i = 0; i < input.length; i++) {

    59             CDSTestUtils.createArchive(input[i])

    60                 .shouldContain("Improperly specified VM option")

    61                 .shouldHaveExitValue(1);

    62         }

    63     }

    64 }