115 lines
4.5 KiB
Java
115 lines
4.5 KiB
Java
/*
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* Copyright (c) 2018, 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 8200696
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* @summary Initial capacity of Class.enumConstantDirectory is not optimal
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* @library /lib/testlibrary
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* @modules java.base/java.lang:open
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* java.base/java.util:open
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* @build jdk.testlibrary.OptimalCapacity
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* @run main ConstantDirectoryOptimalCapacity
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*/
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import jdk.testlibrary.OptimalCapacity;
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public class ConstantDirectoryOptimalCapacity {
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public static void main(String[] args) throws Throwable {
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test(E1.class);
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test(E2.class);
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test(E3.class);
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test(E4.class);
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test(E5.class);
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test(E6.class);
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test(E7.class);
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test(E8.class);
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test(E9.class);
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test(E10.class);
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test(E11.class);
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test(E12.class);
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test(E13.class);
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test(E14.class);
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test(E15.class);
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test(E16.class);
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test(E17.class);
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test(E18.class);
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test(E19.class);
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test(E20.class);
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test(E21.class);
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test(E22.class);
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test(E23.class);
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test(E24.class);
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test(E25.class);
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test(E26.class);
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}
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private static void test(Class<? extends Enum> e) {
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Enum.valueOf(e, "V0"); // trigger init of enumConstantDirectory
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int initialCapacity = (int)(e.getEnumConstants().length / 0.75f) + 1;
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OptimalCapacity.ofHashMap(e.getClass(), e, "enumConstantDirectory",
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initialCapacity);
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}
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enum E1 { V0 }
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enum E2 { V0, V1 }
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enum E3 { V0, V1, V2 }
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enum E4 { V0, V1, V2, V3 }
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enum E5 { V0, V1, V2, V3, V4 }
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enum E6 { V0, V1, V2, V3, V4, V5 }
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enum E7 { V0, V1, V2, V3, V4, V5, V6 }
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enum E8 { V0, V1, V2, V3, V4, V5, V6, V7 }
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enum E9 { V0, V1, V2, V3, V4, V5, V6, V7, V8 }
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enum E10 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9 }
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enum E11 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10 }
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enum E12 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11 }
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enum E13 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12 }
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enum E14 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13 }
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enum E15 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13,
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V14 }
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enum E16 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13,
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V14, V15 }
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enum E17 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13,
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V14, V15, V16 }
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enum E18 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13,
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V14, V15, V16, V17 }
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enum E19 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13,
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V14, V15, V16, V17, V18 }
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enum E20 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13,
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V14, V15, V16, V17, V18, V19 }
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enum E21 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13,
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V14, V15, V16, V17, V18, V19, V20 }
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enum E22 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13,
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V14, V15, V16, V17, V18, V19, V20, V21 }
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enum E23 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13,
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V14, V15, V16, V17, V18, V19, V20, V21, V22 }
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enum E24 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13,
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V14, V15, V16, V17, V18, V19, V20, V21, V22, V23 }
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enum E25 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13,
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V14, V15, V16, V17, V18, V19, V20, V21, V22, V23, V24 }
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enum E26 { V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13,
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V14, V15, V16, V17, V18, V19, V20, V21, V22, V23, V24, V25 }
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}
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