1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * 
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * The contents of this file are subject to the terms of either the Universal Permissive License
   7  * v 1.0 as shown at http://oss.oracle.com/licenses/upl
   8  *
   9  * or the following license:
  10  *
  11  * Redistribution and use in source and binary forms, with or without modification, are permitted
  12  * provided that the following conditions are met:
  13  * 
  14  * 1. Redistributions of source code must retain the above copyright notice, this list of conditions
  15  * and the following disclaimer.
  16  * 
  17  * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
  18  * conditions and the following disclaimer in the documentation and/or other materials provided with
  19  * the distribution.
  20  * 
  21  * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
  22  * endorse or promote products derived from this software without specific prior written permission.
  23  * 
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
  25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  26  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
  27  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  30  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
  31  * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33 package org.openjdk.jmc.common.version;
  34 
  35 /**
  36  * Java versions that have support for various features.
  37  * <p>
  38  * Some of the constants are not used anymore, but keeping them at least for a while as pure
  39  * information.
  40  */
  41 public class JavaVersionSupport {
  42 
  43         public static final JavaVersion JDK_6 = new JavaVersion(6, 0);
  44         public static final JavaVersion EARLIEST_JDK_SUPPORTED = JDK_6;
  45         public static final JavaVersion JDK_7 = new JavaVersion(7, 0);
  46         public static final JavaVersion JDK_7_U_4 = new JavaVersion(7, 0, 4);
  47         public static final JavaVersion JFR_ENGINE_SUPPORTED = JDK_7_U_4;
  48         // 1.7.0_12 was later renamed 14, and then released as 40
  49         public static final JavaVersion JDK_7_U_40 = new JavaVersion(7, 0, 12);
  50         public static final JavaVersion DIAGNOSTIC_COMMANDS_SUPPORTED = JDK_7_U_40;
  51         public static final JavaVersion JFR_FULLY_SUPPORTED = JDK_7_U_40;
  52         public static final JavaVersion JDK_8 = new JavaVersion(8, 0);
  53         public static final JavaVersion JDK_8_U_20 = new JavaVersion(8, 0, 20);
  54         public static final JavaVersion DUMP_ON_EXIT_WITHOUT_DEFAULTRECORDING_SUPPORTED = JDK_8_U_20;
  55         public static final JavaVersion STRING_DEDUPLICATION_SUPPORTED = JDK_8_U_20;
  56         public static final JavaVersion JDK_8_U_40 = new JavaVersion(8, 0, 40);
  57         public static final JavaVersion DYNAMIC_JFR_SUPPORTED = JDK_8_U_40;
  58         public static final JavaVersion JDK_9 = new JavaVersion(9);
  59         // FIXME: Update this if JDK-8036749 is ever backported to 8uX.
  60         public static final JavaVersion DEBUG_NON_SAFEPOINTS_IMPLICITLY_ENABLED = JDK_9;
  61         // FIXME: Update this if JDK-8054307 is ever backported to 8uX.
  62         public static final JavaVersion STRING_IS_BYTE_ARRAY = JDK_9;
  63 
  64 }