1 | <?xml version="1.0" encoding="UTF-8"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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5 | %general-entities;
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6 |
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7 | <!ENTITY ojdk-tarball "jdk-&openjdk-version;-ga.tar.gz">
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8 | <!ENTITY ojdk-repo "https://github.com/openjdk/jdk22u">
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9 | <!ENTITY ojdk-download "&ojdk-repo;/archive/&ojdk-tarball;">
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10 |
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11 | <!ENTITY anduin-download "&sources-anduin-http;/OpenJDK/OpenJDK-&openjdk-version;">
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12 |
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13 | <!ENTITY ojdk-md5sum "13b4e71252055e6d78ae12b8db5021d4">
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14 | <!ENTITY ojdk-size "107 MB">
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15 |
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16 | <!ENTITY jtreg-version "7.3.1+1">
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17 | <!ENTITY jtreg-download "&anduin-download;/jtreg-&jtreg-version;.tar.gz">
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18 | <!ENTITY jtreg-md5sum "0038551ecaf37d0cd99832217f79e56d">
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19 | <!ENTITY jtreg-size "9.0 MB">
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20 |
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21 | <!ENTITY ojdk-bdsize "3.7 GB (add 625 MB for tests)">
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22 | <!ENTITY ojdk-time "5.2 SBU with 4 jobs (add 34 SBU for tests with 4 jobs)">
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23 | ]>
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24 |
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25 | <sect1 id="openjdk" xreflabel="OpenJDK-&openjdk-version;">
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26 | <?dbhtml filename="openjdk.html" ?>
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27 |
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28 |
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29 | <title>OpenJDK-&openjdk-version;</title>
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30 |
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31 | <indexterm zone="openjdk">
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32 | <primary sortas="a-OpenJDK">OpenJDK</primary>
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33 | </indexterm>
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34 |
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35 | <sect2 role="package">
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36 | <title>Introduction to OpenJDK</title>
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37 |
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38 | <para>
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39 | <application>OpenJDK</application> is an open-source implementation
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40 | of Oracle's Java Standard Edition platform.
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41 | <application>OpenJDK</application> is useful for developing
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42 | <application>Java</application> programs, and provides a complete
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43 | runtime environment to run <application>Java</application> programs.
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44 | </para>
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45 |
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46 | &lfs122_checked;
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47 |
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48 | <para>
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49 | OpenJDK is GPL'd code, with a special exception made for non-free
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50 | projects to use these classes in their proprietary products.
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51 | In similar fashion to the LGPL, which allows non-free programs to link
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52 | to libraries provided by free software, the
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53 | <ulink url="https://openjdk.org/legal/gplv2+ce.html">GNU
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54 | General Public License, version 2, with the Classpath Exception</ulink>
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55 | allows third party programs to use classes provided by free software
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56 | without the requirement that the third party software also be free. As
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57 | with the LGPL, any modifications made to the free software portions of a
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58 | third party application, must also be made freely available.
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59 | </para>
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60 |
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61 | <note>
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62 | <para>
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63 | The <application>OpenJDK</application> source includes a very
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64 | thorough, open source test suite using the
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65 | <application>JTreg</application> test harness. The testing instructions
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66 | below allow testing the just built JDK for reasonable compatibility
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67 | with the proprietary Oracle JDK. However, in order for an independent
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68 | implementation to claim compatibility, it must pass a proprietary
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69 | <application>JCK/TCK</application> test suite. No claims of
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70 | compatibility, or even partial compatibility, may be made without passing
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71 | an approved test suite.
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72 | </para>
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73 |
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74 | <para>
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75 | Oracle does provide free community access, on a case-by-case basis, to
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76 | a closed toolkit to ensure 100% compatibility with its proprietary JDK.
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77 | Neither the binary version provided on the <xref linkend="java"/> page
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78 | nor the JVM built with the instructions below have been tested against
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79 | the <ulink
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80 | url="https://openjdk.java.net/groups/conformance/JckAccess/jck-access.html">
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81 | TCK</ulink>. Any version that is built using the instructions given,
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82 | cannot claim to be compatible with the proprietary JDK, without the
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83 | user applying for, and completing the compatibility tests themselves.
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84 | </para>
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85 |
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86 | <para>
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87 | With that in mind, the binaries produced using this build method are
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88 | regularly tested against the TCK by the members listed on the site
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89 | above. In addition to the community license above, an educational,
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90 | non-commercial license for the TCK can be obtained <ulink
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91 | url="https://www.oracle.com/java/scholarship-program.html">
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92 | here</ulink>.
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93 | </para>
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94 | </note>
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95 |
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96 | <bridgehead renderas="sect3">Package Information</bridgehead>
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97 | <itemizedlist spacing="compact">
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98 | <listitem>
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99 | <para>
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100 | Download (HTTP): <ulink url="&ojdk-download;"/>
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101 | </para>
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102 | </listitem>
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103 | <listitem>
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104 | <para>
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105 | Download (FTP): <ulink url=" "/>
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106 | </para>
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107 | </listitem>
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108 | <listitem>
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109 | <para>
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110 | Download MD5 sum: &ojdk-md5sum;
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111 | </para>
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112 | </listitem>
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113 | <listitem>
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114 | <para>
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115 | Download Size: &ojdk-size;
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116 | </para>
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117 | </listitem>
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118 | <listitem>
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119 | <para>
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120 | Estimated disk space required: &ojdk-bdsize;
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121 | </para>
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122 | </listitem>
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123 | <listitem>
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124 | <para>
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125 | Estimated build time: &ojdk-time;
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126 | </para>
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127 | </listitem>
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128 | </itemizedlist>
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129 |
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130 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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131 |
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132 | <para>
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133 | <emphasis role="strong">Optional test harness</emphasis>
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134 | </para>
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135 |
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136 | <itemizedlist spacing='compact'>
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137 | <listitem>
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138 | <para>
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139 | <ulink url="&jtreg-download;"/>
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140 | </para>
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141 | </listitem>
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142 | <listitem>
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143 | <para>
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144 | Download MD5 sum: &jtreg-md5sum;
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145 | </para>
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146 | </listitem>
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147 | <listitem>
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148 | <para>
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149 | Download Size: &jtreg-size;
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150 | </para>
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151 | </listitem>
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152 | </itemizedlist>
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153 | <!--
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154 | <bridgehead renderas="sect4">Required patch</bridgehead>
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155 |
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156 | <itemizedlist spacing='compact'>
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157 | <listitem>
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158 | <para>
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159 | <ulink url="&patch-root;/openjdk-&openjdk-version;-make_4.3_fix-1.patch"/>
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160 | </para>
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161 | </listitem>
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162 | </itemizedlist>
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163 | -->
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164 | <bridgehead renderas="sect3">OpenJDK Dependencies</bridgehead>
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165 |
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166 | <bridgehead renderas="sect4">Required Dependencies</bridgehead>
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167 | <para role="required">
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168 | An existing binary (<xref linkend="java"/> or an earlier built
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169 | version of this package. The instructions below assume that
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170 | you are using <xref linkend="ojdk-conf"/>),
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171 | <xref linkend="alsa-lib"/>,
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172 | <xref linkend="cpio"/>,
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173 | <xref linkend="cups"/>,
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174 | <xref linkend="unzip"/>,
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175 | <xref linkend="which"/>,
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176 | <xref linkend="xorg7-lib"/>, and
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177 | <xref linkend="zip"/>
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178 | </para>
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179 |
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180 | <bridgehead renderas="sect4">Recommended</bridgehead>
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181 | <para role="recommended">
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182 | <xref linkend="make-ca"/>,
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183 | <xref linkend="giflib"/>,
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184 | <xref linkend="harfbuzz"/>,
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185 | <xref linkend="lcms2"/>,
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186 | <xref linkend="libjpeg"/>,
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187 | <xref linkend="libpng"/>, and
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188 | <xref linkend="wget"/>
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189 | </para>
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190 |
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191 | <bridgehead renderas="sect4">Optional</bridgehead>
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192 | <para role="optional">
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193 | <xref linkend="git"/>,
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194 | <xref linkend="graphviz"/>,
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195 | <xref linkend="mercurial"/>,
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196 | <!-- not needed now, it seems
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197 | an X Window manager such as <xref linkend="twm"/> (for the tests), and
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198 | -->
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199 | <ulink url="https://ccache.dev/">ccache</ulink>,
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200 | <ulink url="https://pandoc.org/">pandoc</ulink>, and
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201 | <ulink url="https://zlib.net/pigz">pigz</ulink>
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202 | </para>
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203 |
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204 |
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205 | </sect2>
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206 |
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207 | <sect2 role="installation">
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208 | <title>Installation of OpenJDK</title>
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209 |
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210 | <para>
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211 | If you have downloaded the optional test harness, unpack it now:
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212 | </para>
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213 |
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214 | <screen><userinput>tar -xf ../jtreg-&jtreg-version;.tar.gz</userinput></screen>
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215 | <!--
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216 | <para>
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217 | Apply a patch to allow building with make-4.3:
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218 | </para>
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219 |
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220 | <screen><userinput>patch -p1 -i ../openjdk-&openjdk-version;-make_4.3_fix-1.patch</userinput></screen>
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221 |
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222 | <para>
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223 | Fix an issue coming from a removed header in glibc-2.32:
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224 | </para>
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225 |
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226 | <screen><userinput>sed -i /sysctl/d \
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227 | src/jdk.incubator.jpackage/unix/native/libapplauncher/PosixPlatform.cpp</userinput></screen>
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228 | -->
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229 | <note>
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230 | <para>
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231 | Before proceeding, you should ensure that your environment
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232 | <envar>PATH</envar> variable contains the location of the Java
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233 | compiler used for bootstrapping <application>OpenJDK</application>.
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234 | This is the only requirement for the environment. Modern Java
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235 | installations do not need <envar>JAVA_HOME</envar> and
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236 | <envar>CLASSPATH</envar> is not used here. Furthermore, OpenJDK
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237 | developers recommend unsetting <envar>JAVA_HOME</envar>.
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238 | </para>
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239 |
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240 | <para>
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241 | The build system does not allow the <option>-j</option> switch in
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242 | <envar>MAKEFLAGS</envar>. See the command explanation for
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243 | <option>--with-jobs=</option>
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244 | for more information on customizing parallelization.
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245 | </para>
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246 | </note>
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247 |
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248 | <para>
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249 | Configure and build the package with the following commands:
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250 | </para>
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251 |
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252 | <screen><userinput>unset JAVA_HOME &&
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253 | bash configure --enable-unlimited-crypto \
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254 | --disable-warnings-as-errors \
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255 | --with-stdc++lib=dynamic \
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256 | --with-giflib=system \
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257 | --with-harfbuzz=system \
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258 | --with-jtreg=$PWD/jtreg \
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259 | --with-lcms=system \
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260 | --with-libjpeg=system \
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261 | --with-libpng=system \
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262 | --with-zlib=system \
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263 | --with-version-build="&openjdk-build;" \
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264 | --with-version-pre="" \
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265 | --with-version-opt="" \
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266 | --with-cacerts-file=/etc/pki/tls/java/cacerts &&
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267 | make images</userinput></screen>
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268 |
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269 | <para>
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270 | To test the results, you will need to execute the jtreg program.
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271 | You can set the number of concurrent tests by adding the
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272 | <parameter>-conc:<replaceable><X></replaceable></parameter>
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273 | value in the below command (tests will run sequentially otherwise):
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274 | </para>
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275 |
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276 | <screen remap="test"><userinput>export JT_JAVA=$(echo $PWD/build/*/jdk) &&
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277 | jtreg/bin/jtreg -jdk:$JT_JAVA -automatic -ignore:quiet -v1 \
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278 | test/jdk:tier1 test/langtools:tier1 &&
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279 | unset JT_JAVA</userinput></screen>
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280 |
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281 | <para>
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282 | For more control over the test suite, review the documentation
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283 | available in <filename>jtreg/doc/jtreg/usage.txt</filename>. To review
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284 | the results, see the files
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285 | <filename>JTreport/test_{jdk,langtools}/text/stats.txt</filename> and
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286 | <filename>JTreport/test_{jdk,langtools}/text/summary.txt</filename>.
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287 | You should expect to see around 60 failures and 10 errors.
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288 | </para>
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289 | <!--
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290 | 14.0.1+7:
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291 | for x86_64: passed: 5,836; failed: 42; error: 50
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292 | 17.0.2+8:
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293 | for x86_64: passed: 6,238; failed: 48; error: 13
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294 | for i686: passed: 6,208; failed: 29; error: 6
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295 | 18.0.1+10:
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296 | for x86_64: passed: 6,323; failed: 53; error: 14
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297 | for i686: passed: 6,290; failed: 29; error: 11
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298 | 18.0.1.1+2:
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299 | for x86_64: passed: 6,323; failed: 53; error: 14
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300 | for i686: passed: 6,290; failed: 29; error: 11
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301 | 18.0.2+8:
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302 | for x86_64: passed: 6,329; failed: 50; error: 14
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303 | for i686: passed: 6,289; failed: 31; error: 13
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304 | 19.0.1+10:
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305 | for x86_64: passed: 6,423; failed: 58; error: 15
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306 | for i686: passed: 6,376; failed: 31; error: 12
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307 | 19.0.2+7:
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308 | for x86_64: passed: 6,426; failed: 61; error: 14
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309 | for i686: passed: 6,377; failed: 34; error: 11
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310 | 20.0.1+9:
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311 | for x86_64: passed: 6,515; failed: 65; error: 13
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312 | for i686: passed: 6,520; failed: 60; error: 13
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313 | 20.0.2+9:
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314 | for x86_64: passed: 6,515; failed: 65; error: 14
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315 | for i686: passed: 6,446; failed: 33; error: 12
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316 | 21+35:
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317 | for x86_64: passed: 6,699; failed: 72; error: 13
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318 | for i686: passed: 6,627; failed: 30; error: 10
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319 | 21.0.1+12:
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320 | for x86_64: passed: 6,706; failed: 72; error: 14
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321 | for i686: passed: 6,636; failed: 29; error: 11
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322 | 21.0.2+13:
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323 | for x86_64: passed: 6,698; failed: 71; error: 13
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324 | for i686: passed: 6,606; failed: 30; error: 34
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325 | 22.0.1+8:
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326 | for x86_64: passed: 6,776; failed: 77; error: 14
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327 | for i686: passed: 6,703; failed: 76; error: 21
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328 | 22.0.2+9:
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329 | for x86_64: passed: 6,772; failed: 82; error: 15
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330 | for i686: passed: 6,704; failed: 79; error: 17
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331 | -->
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332 |
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333 | <para>
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334 | Install the package with the following commands as the
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335 | <systemitem class="username">root</systemitem> user:
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336 | </para>
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337 |
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338 | <screen role="root"><userinput>install -vdm755 /opt/jdk-&openjdk-version;+&openjdk-build; &&
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339 | cp -Rv build/*/images/jdk/* /opt/jdk-&openjdk-version;+&openjdk-build; &&
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340 | chown -R root:root /opt/jdk-&openjdk-version;+&openjdk-build; &&
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341 | for s in 16 24 32 48; do
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342 | install -vDm644 src/java.desktop/unix/classes/sun/awt/X11/java-icon${s}.png \
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343 | /usr/share/icons/hicolor/${s}x${s}/apps/java.png
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344 | done</userinput></screen>
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345 |
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346 | <note>
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347 | <para>
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348 | If you only wish to install the Java Runtime Environment, you can
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349 | substitute <filename>build/*/images/jre</filename> in the above
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350 | <command>cp</command> command.
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351 | </para>
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352 | </note>
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353 |
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354 | <para>
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355 | There are now two <application>OpenJDK</application> SDKs installed
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356 | in <filename class="directory">/opt</filename>. You should decide on
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357 | which one you would like to use as the default. Normally, you would opt
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358 | for the just installed <application>OpenJDK</application>. If so, do
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359 | the following as the <systemitem class="username">root</systemitem>
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360 | user:
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361 | </para>
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362 |
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363 | <screen role="root"><userinput>ln -v -nsf jdk-&openjdk-version;+&openjdk-build; /opt/jdk</userinput></screen>
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364 |
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365 | <para>
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366 | If desired, you can create .desktop files to add entries
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367 | in the menu for <command>java</command>
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368 | and <command>jconsole</command>. The needed icons have already been
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369 | installed. As the <systemitem class="username">root</systemitem> user:
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370 | </para>
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371 |
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372 | <screen role="root"><userinput>mkdir -pv /usr/share/applications &&
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373 |
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374 | cat > /usr/share/applications/openjdk-java.desktop << "EOF" &&
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375 | <literal>[Desktop Entry]
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376 | Name=OpenJDK Java &openjdk-version; Runtime
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377 | Comment=OpenJDK Java &openjdk-version; Runtime
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378 | Exec=/opt/jdk/bin/java -jar
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379 | Terminal=false
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380 | Type=Application
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381 | Icon=java
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382 | MimeType=application/x-java-archive;application/java-archive;application/x-jar;
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383 | NoDisplay=true</literal>
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384 | EOF
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385 | cat > /usr/share/applications/openjdk-jconsole.desktop << "EOF"
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386 | <literal>[Desktop Entry]
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387 | Name=OpenJDK Java &openjdk-version; Console
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388 | Comment=OpenJDK Java &openjdk-version; Console
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389 | Keywords=java;console;monitoring
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390 | Exec=/opt/jdk/bin/jconsole
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391 | Terminal=false
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392 | Type=Application
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393 | Icon=java
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394 | Categories=Application;System;</literal>
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395 | EOF</userinput></screen>
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396 |
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397 | </sect2>
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398 |
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399 | <sect2 role="commands">
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400 | <title>Command Explanations</title>
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401 |
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402 | <para>
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403 | <command>bash configure...</command>: the top level
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404 | <filename>configure</filename> is a wrapper around the autotools one.
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405 | It is not executable and must be run through <command>bash</command>.
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406 | </para>
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407 | <!-- Not needed in openjdk-15
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408 | <para>
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409 | <parameter>- -with-extra-cflags=-fcommon</parameter>: Allows building
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410 | with GCC 10.
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411 | </para>
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412 | -->
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413 | <para>
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414 | <parameter>--enable-unlimited-crypto</parameter>: Because of limitations
|
---|
415 | on the usage of cryptography in some countries, there is the possibility
|
---|
416 | to limit the size of encryption keys and the use of some algorithms in a
|
---|
417 | policy file. This switch allows to ship a policy file with no
|
---|
418 | restriction. It is the responsibility of the user to ensure proper
|
---|
419 | adherence to the law.
|
---|
420 | </para>
|
---|
421 |
|
---|
422 | <para>
|
---|
423 | <parameter>--disable-warnings-as-errors</parameter>: This switch disables
|
---|
424 | use of <envar>-Werror</envar> in the build.
|
---|
425 | </para>
|
---|
426 |
|
---|
427 | <para>
|
---|
428 | <parameter>--with-stdc++lib=dynamic</parameter>: This switch forces the
|
---|
429 | build system to link to <filename>libstdc++.so</filename> (dynamic)
|
---|
430 | instead of <filename>libstdc++.a</filename> (static).
|
---|
431 | </para>
|
---|
432 |
|
---|
433 | <para>
|
---|
434 | <option>--with-jobs=<replaceable><X></replaceable></option>:
|
---|
435 | The <parameter>-j</parameter> passed to make does not work with make as
|
---|
436 | invoked here. By default, the build system will use the number of
|
---|
437 | CPUs - 1.
|
---|
438 | </para>
|
---|
439 |
|
---|
440 | <para>
|
---|
441 | <parameter>--with-jtreg=$PWD/jtreg</parameter>: This switch tells
|
---|
442 | configure where to find jtreg. Omit if you have not downloaded the
|
---|
443 | optional test suite.
|
---|
444 | </para>
|
---|
445 |
|
---|
446 | <para>
|
---|
447 | <parameter>--with-{giflib,harfbuzz,lcms,libjpeg,libpng,zlib}=system</parameter>:
|
---|
448 | These switches force the build system to use the system libraries instead
|
---|
449 | of the bundled versions.
|
---|
450 | </para>
|
---|
451 |
|
---|
452 | <para>
|
---|
453 | <parameter>--with-version-build</parameter>: Currently, the build
|
---|
454 | system does not include the build number in the version string. It has
|
---|
455 | to be specified here.
|
---|
456 | </para>
|
---|
457 |
|
---|
458 | <para>
|
---|
459 | <parameter>--with-version-pre</parameter>: This switch allows you to
|
---|
460 | prefix the version string with a custom string.
|
---|
461 | </para>
|
---|
462 |
|
---|
463 | <para>
|
---|
464 | <parameter>--with-version-opt</parameter>: This switch allows you to add
|
---|
465 | an optional build description to the version string.
|
---|
466 | </para>
|
---|
467 |
|
---|
468 | <para>
|
---|
469 | <parameter>--with-cacerts-file=/etc/pki/tls/java/cacerts</parameter>:
|
---|
470 | Specifies where to find a <filename>cacerts</filename> file,
|
---|
471 | <filename>/etc/pki/tls/java/</filename> on a BLFS system. Otherwise, an
|
---|
472 | empty one is created. You can use the
|
---|
473 | <command>/usr/sbin/make-ca --force</command> command to generate it, once
|
---|
474 | you have installed the Java binaries.
|
---|
475 | </para>
|
---|
476 |
|
---|
477 | <para>
|
---|
478 | <option>--with-boot-jdk</option>: This switch provides the
|
---|
479 | location of the temporary <application>JDK</application>. It is normally
|
---|
480 | not needed if <command>java</command> is found in the <envar>PATH</envar>.
|
---|
481 | </para>
|
---|
482 | <!-- Seems to have disappeared
|
---|
483 | <para>
|
---|
484 | <command>find ... -iname '*.diz' -delete</command>: This command
|
---|
485 | removes redundant files.
|
---|
486 | </para>
|
---|
487 | -->
|
---|
488 | </sect2>
|
---|
489 |
|
---|
490 | <sect2 role="configuration"
|
---|
491 | id="openjdk-config"
|
---|
492 | xreflabel="Configuring OpenJDK">
|
---|
493 | <title>Configuring OpenJDK</title>
|
---|
494 |
|
---|
495 | <sect3>
|
---|
496 | <title>Configuration Information</title>
|
---|
497 |
|
---|
498 | <para>
|
---|
499 | Normally, the Java environment has been configured after installing
|
---|
500 | the binary version, and can be used with the just built package as well.
|
---|
501 | Review <xref linkend="ojdk-conf"/> in case you want to modify
|
---|
502 | something.
|
---|
503 | </para>
|
---|
504 |
|
---|
505 | <para>
|
---|
506 | To test if the man pages are correctly installed, issue
|
---|
507 | <command>source /etc/profile</command> and <command>man java</command>
|
---|
508 | to display the respective man page.
|
---|
509 | </para>
|
---|
510 |
|
---|
511 | </sect3>
|
---|
512 |
|
---|
513 | <sect3>
|
---|
514 | <title>
|
---|
515 | Setting up the JRE Certificate Authority Certificates (cacerts) file
|
---|
516 | </title>
|
---|
517 |
|
---|
518 | <para>
|
---|
519 | If you have run the instructions on the <xref linkend="make-ca"/> page,
|
---|
520 | you only need to create a symlink in the default location for the
|
---|
521 | <filename>cacerts</filename> file. As user <systemitem
|
---|
522 | class="username">root</systemitem>:
|
---|
523 | </para>
|
---|
524 |
|
---|
525 | <screen role="root"><userinput>ln -sfv /etc/pki/tls/java/cacerts /opt/jdk/lib/security/cacerts</userinput></screen>
|
---|
526 |
|
---|
527 | <para>
|
---|
528 | To check the installation, issue:
|
---|
529 | </para>
|
---|
530 |
|
---|
531 | <screen role="root"><userinput>cd /opt/jdk
|
---|
532 | bin/keytool -list -cacerts</userinput></screen>
|
---|
533 |
|
---|
534 | <para>
|
---|
535 | At the prompt <computeroutput>Enter keystore password:</computeroutput>,
|
---|
536 | enter <userinput>changeit</userinput> (the default) or just press the
|
---|
537 | <quote>Enter</quote> key. If the <filename>cacerts</filename> file was
|
---|
538 | installed correctly, you will see a list of the certificates with
|
---|
539 | related information for each one. If not, you need to reinstall them.
|
---|
540 | </para>
|
---|
541 |
|
---|
542 | </sect3>
|
---|
543 |
|
---|
544 | </sect2>
|
---|
545 |
|
---|
546 | <sect2 role="content">
|
---|
547 | <title>Contents</title>
|
---|
548 |
|
---|
549 | <segmentedlist>
|
---|
550 | <segtitle>Installed Programs</segtitle>
|
---|
551 | <segtitle>Installed Libraries</segtitle>
|
---|
552 | <segtitle>Installed Directory</segtitle>
|
---|
553 |
|
---|
554 | <seglistitem>
|
---|
555 | <seg>jar, jarsigner, java, javac, javadoc, javap, jcmd,
|
---|
556 | jconsole, jdb, jdeprscan, jdeps, jfr, jhsdb, jimage, jinfo,
|
---|
557 | jlink, jmap, jmod, jpackage, jps, jrunscript, jshell, jstack,
|
---|
558 | jstat, jstatd, jwebserver, keytool, rmiregistry, and serialver</seg>
|
---|
559 | <seg>38 libraries in /opt/jdk-&openjdk-version;+&openjdk-build;/lib/</seg>
|
---|
560 | <seg>/opt/jdk-&openjdk-version;+&openjdk-build;</seg>
|
---|
561 | </seglistitem>
|
---|
562 | </segmentedlist>
|
---|
563 |
|
---|
564 | <variablelist>
|
---|
565 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
---|
566 | <?dbfo list-presentation="list"?>
|
---|
567 | <?dbhtml list-presentation="table"?>
|
---|
568 |
|
---|
569 | <varlistentry id="jar">
|
---|
570 | <term><command>jar</command></term>
|
---|
571 | <listitem>
|
---|
572 | <para>
|
---|
573 | combines multiple files into a single jar archive
|
---|
574 | </para>
|
---|
575 | <indexterm zone="openjdk jar">
|
---|
576 | <primary sortas="b-jar">jar</primary>
|
---|
577 | </indexterm>
|
---|
578 | </listitem>
|
---|
579 | </varlistentry>
|
---|
580 |
|
---|
581 | <varlistentry id="jarsigner">
|
---|
582 | <term><command>jarsigner</command></term>
|
---|
583 | <listitem>
|
---|
584 | <para>
|
---|
585 | signs jar files and verifies the signatures and integrity
|
---|
586 | of a signed jar file
|
---|
587 | </para>
|
---|
588 | <indexterm zone="openjdk jarsigner">
|
---|
589 | <primary sortas="b-jarsigner">jarsigner</primary>
|
---|
590 | </indexterm>
|
---|
591 | </listitem>
|
---|
592 | </varlistentry>
|
---|
593 |
|
---|
594 | <varlistentry id="java-prog">
|
---|
595 | <term><command>java</command></term>
|
---|
596 | <listitem>
|
---|
597 | <para>
|
---|
598 | launches a Java application by starting a Java runtime
|
---|
599 | environment, loading a specified class and invoking its main
|
---|
600 | method
|
---|
601 | </para>
|
---|
602 | <indexterm zone="openjdk java-prog">
|
---|
603 | <primary sortas="b-java-prog">java</primary>
|
---|
604 | </indexterm>
|
---|
605 | </listitem>
|
---|
606 | </varlistentry>
|
---|
607 |
|
---|
608 | <varlistentry id="javac">
|
---|
609 | <term><command>javac</command></term>
|
---|
610 | <listitem>
|
---|
611 | <para>
|
---|
612 | reads class and interface definitions, written in the
|
---|
613 | Java programming language, and compiles them into bytecode
|
---|
614 | class files
|
---|
615 | </para>
|
---|
616 | <indexterm zone="openjdk javac">
|
---|
617 | <primary sortas="b-javac">javac</primary>
|
---|
618 | </indexterm>
|
---|
619 | </listitem>
|
---|
620 | </varlistentry>
|
---|
621 |
|
---|
622 | <varlistentry id="javadoc">
|
---|
623 | <term><command>javadoc</command></term>
|
---|
624 | <listitem>
|
---|
625 | <para>
|
---|
626 | parses the declarations and documentation comments in a
|
---|
627 | set of Java source files and produces a corresponding set of
|
---|
628 | HTML pages describing the classes, interfaces, constructors,
|
---|
629 | methods, and fields
|
---|
630 | </para>
|
---|
631 | <indexterm zone="openjdk javadoc">
|
---|
632 | <primary sortas="b-javadoc">javadoc</primary>
|
---|
633 | </indexterm>
|
---|
634 | </listitem>
|
---|
635 | </varlistentry>
|
---|
636 |
|
---|
637 | <varlistentry id="javap">
|
---|
638 | <term><command>javap</command></term>
|
---|
639 | <listitem>
|
---|
640 | <para>
|
---|
641 | disassembles a Java class file
|
---|
642 | </para>
|
---|
643 | <indexterm zone="openjdk javap">
|
---|
644 | <primary sortas="b-javap">javap</primary>
|
---|
645 | </indexterm>
|
---|
646 | </listitem>
|
---|
647 | </varlistentry>
|
---|
648 |
|
---|
649 | <varlistentry id="jcmd">
|
---|
650 | <term><command>jcmd</command></term>
|
---|
651 | <listitem>
|
---|
652 | <para>
|
---|
653 | is a utility to send diagnostic command requests to a running
|
---|
654 | Java Virtual Machine
|
---|
655 | </para>
|
---|
656 | <indexterm zone="openjdk jcmd">
|
---|
657 | <primary sortas="b-jcmd">jcmd</primary>
|
---|
658 | </indexterm>
|
---|
659 | </listitem>
|
---|
660 | </varlistentry>
|
---|
661 |
|
---|
662 | <varlistentry id="jconsole">
|
---|
663 | <term><command>jconsole</command></term>
|
---|
664 | <listitem>
|
---|
665 | <para>
|
---|
666 | is a graphical console tool to monitor and manage both
|
---|
667 | local and remote Java applications and virtual machines
|
---|
668 | </para>
|
---|
669 | <indexterm zone="openjdk jconsole">
|
---|
670 | <primary sortas="b-jconsole">jconsole</primary>
|
---|
671 | </indexterm>
|
---|
672 | </listitem>
|
---|
673 | </varlistentry>
|
---|
674 |
|
---|
675 | <varlistentry id="jdb">
|
---|
676 | <term><command>jdb</command></term>
|
---|
677 | <listitem>
|
---|
678 | <para>
|
---|
679 | is a simple command-line debugger for Java classes
|
---|
680 | </para>
|
---|
681 | <indexterm zone="openjdk jdb">
|
---|
682 | <primary sortas="b-jdb">jdb</primary>
|
---|
683 | </indexterm>
|
---|
684 | </listitem>
|
---|
685 | </varlistentry>
|
---|
686 |
|
---|
687 | <varlistentry id="jdeprscan">
|
---|
688 | <term><command>jdeprscan</command></term>
|
---|
689 | <listitem>
|
---|
690 | <para>
|
---|
691 | scans class or jar files for uses of deprecated API elements
|
---|
692 | </para>
|
---|
693 | <indexterm zone="openjdk jdeprscan">
|
---|
694 | <primary sortas="b-jdeprscan">jdeprscan</primary>
|
---|
695 | </indexterm>
|
---|
696 | </listitem>
|
---|
697 | </varlistentry>
|
---|
698 |
|
---|
699 | <varlistentry id="jdeps">
|
---|
700 | <term><command>jdeps</command></term>
|
---|
701 | <listitem>
|
---|
702 | <para>
|
---|
703 | shows the package-level or class-level dependencies of
|
---|
704 | Java class files
|
---|
705 | </para>
|
---|
706 | <indexterm zone="openjdk jdeps">
|
---|
707 | <primary sortas="b-jdeps">jdeps</primary>
|
---|
708 | </indexterm>
|
---|
709 | </listitem>
|
---|
710 | </varlistentry>
|
---|
711 |
|
---|
712 | <varlistentry id="jfr">
|
---|
713 | <term><command>jfr</command></term>
|
---|
714 | <listitem>
|
---|
715 | <para>
|
---|
716 | is a tool for working with <quote>Flight Recorder</quote> files
|
---|
717 | </para>
|
---|
718 | <indexterm zone="openjdk jfr">
|
---|
719 | <primary sortas="b-jfr">jfr</primary>
|
---|
720 | </indexterm>
|
---|
721 | </listitem>
|
---|
722 | </varlistentry>
|
---|
723 |
|
---|
724 | <varlistentry id="jhsdb">
|
---|
725 | <term><command>jhsdb</command></term>
|
---|
726 | <listitem>
|
---|
727 | <para>
|
---|
728 | is a tool to analyze the content of a core dump from a
|
---|
729 | crashed Java Virtual Machine (JVM)
|
---|
730 | </para>
|
---|
731 | <indexterm zone="openjdk jhsdb">
|
---|
732 | <primary sortas="b-jhsdb">jhsdb</primary>
|
---|
733 | </indexterm>
|
---|
734 | </listitem>
|
---|
735 | </varlistentry>
|
---|
736 |
|
---|
737 | <varlistentry id="jimage">
|
---|
738 | <term><command>jimage</command></term>
|
---|
739 | <listitem>
|
---|
740 | <para>
|
---|
741 | is used to list, extract, verify, or get information about
|
---|
742 | modules in <emphasis>jimage</emphasis> format
|
---|
743 | </para>
|
---|
744 | <indexterm zone="openjdk jimage">
|
---|
745 | <primary sortas="b-jimage">jimage</primary>
|
---|
746 | </indexterm>
|
---|
747 | </listitem>
|
---|
748 | </varlistentry>
|
---|
749 |
|
---|
750 | <varlistentry id="jinfo">
|
---|
751 | <term><command>jinfo</command></term>
|
---|
752 | <listitem>
|
---|
753 | <para>
|
---|
754 | prints Java configuration information for a given Java
|
---|
755 | process, core file, or a remote debug server
|
---|
756 | </para>
|
---|
757 | <indexterm zone="openjdk jinfo">
|
---|
758 | <primary sortas="b-jinfo">jinfo</primary>
|
---|
759 | </indexterm>
|
---|
760 | </listitem>
|
---|
761 | </varlistentry>
|
---|
762 |
|
---|
763 | <varlistentry id="jlink">
|
---|
764 | <term><command>jlink</command></term>
|
---|
765 | <listitem>
|
---|
766 | <para>
|
---|
767 | is used to assemble and optimize a set of modules and their
|
---|
768 | dependencies into a custom runtime image
|
---|
769 | </para>
|
---|
770 | <indexterm zone="openjdk jlink">
|
---|
771 | <primary sortas="b-jlink">jlink</primary>
|
---|
772 | </indexterm>
|
---|
773 | </listitem>
|
---|
774 | </varlistentry>
|
---|
775 |
|
---|
776 | <varlistentry id="jmap">
|
---|
777 | <term><command>jmap</command></term>
|
---|
778 | <listitem>
|
---|
779 | <para>
|
---|
780 | prints shared object memory maps or heap memory details
|
---|
781 | of a given process, core file, or a remote debug server
|
---|
782 | </para>
|
---|
783 | <indexterm zone="openjdk jmap">
|
---|
784 | <primary sortas="b-jmap">jmap</primary>
|
---|
785 | </indexterm>
|
---|
786 | </listitem>
|
---|
787 | </varlistentry>
|
---|
788 |
|
---|
789 | <varlistentry id="jmod">
|
---|
790 | <term><command>jmod</command></term>
|
---|
791 | <listitem>
|
---|
792 | <para>
|
---|
793 | creates JMOD files and lists the content of existing JMOD files
|
---|
794 | </para>
|
---|
795 | <indexterm zone="openjdk jmod">
|
---|
796 | <primary sortas="b-jmod">jmod</primary>
|
---|
797 | </indexterm>
|
---|
798 | </listitem>
|
---|
799 | </varlistentry>
|
---|
800 |
|
---|
801 | <varlistentry id="jpackage">
|
---|
802 | <term><command>jpackage</command></term>
|
---|
803 | <listitem>
|
---|
804 | <para>
|
---|
805 | generates java application packages and images
|
---|
806 | </para>
|
---|
807 | <indexterm zone="openjdk jpackage">
|
---|
808 | <primary sortas="b-jpackage">jpackage</primary>
|
---|
809 | </indexterm>
|
---|
810 | </listitem>
|
---|
811 | </varlistentry>
|
---|
812 |
|
---|
813 | <varlistentry id="jps">
|
---|
814 | <term><command>jps</command></term>
|
---|
815 | <listitem>
|
---|
816 | <para>
|
---|
817 | lists the instrumented JVMs on the target system
|
---|
818 | </para>
|
---|
819 | <indexterm zone="openjdk jps">
|
---|
820 | <primary sortas="b-jps">jps</primary>
|
---|
821 | </indexterm>
|
---|
822 | </listitem>
|
---|
823 | </varlistentry>
|
---|
824 |
|
---|
825 | <varlistentry id="jrunscript">
|
---|
826 | <term><command>jrunscript</command></term>
|
---|
827 | <listitem>
|
---|
828 | <para>
|
---|
829 | is a command line script shell
|
---|
830 | </para>
|
---|
831 | <indexterm zone="openjdk jrunscript">
|
---|
832 | <primary sortas="b-jrunscript">jrunscript</primary>
|
---|
833 | </indexterm>
|
---|
834 | </listitem>
|
---|
835 | </varlistentry>
|
---|
836 |
|
---|
837 | <varlistentry id="jshell">
|
---|
838 | <term><command>jshell</command></term>
|
---|
839 | <listitem>
|
---|
840 | <para>
|
---|
841 | is an interactive tool for learning the Java programming
|
---|
842 | language and prototyping Java code
|
---|
843 | </para>
|
---|
844 | <indexterm zone="openjdk jshell">
|
---|
845 | <primary sortas="b-jshell">jshell</primary>
|
---|
846 | </indexterm>
|
---|
847 | </listitem>
|
---|
848 | </varlistentry>
|
---|
849 |
|
---|
850 | <varlistentry id="jstack">
|
---|
851 | <term><command>jstack</command></term>
|
---|
852 | <listitem>
|
---|
853 | <para>
|
---|
854 | prints Java stack traces of Java threads for a given
|
---|
855 | Java process, core file, or a remote debug server
|
---|
856 | </para>
|
---|
857 | <indexterm zone="openjdk jstack">
|
---|
858 | <primary sortas="b-jstack">jstack</primary>
|
---|
859 | </indexterm>
|
---|
860 | </listitem>
|
---|
861 | </varlistentry>
|
---|
862 |
|
---|
863 | <varlistentry id="jstat">
|
---|
864 | <term><command>jstat</command></term>
|
---|
865 | <listitem>
|
---|
866 | <para>
|
---|
867 | displays performance statistics for an instrumented JVM
|
---|
868 | </para>
|
---|
869 | <indexterm zone="openjdk jstat">
|
---|
870 | <primary sortas="b-jstat">jstat</primary>
|
---|
871 | </indexterm>
|
---|
872 | </listitem>
|
---|
873 | </varlistentry>
|
---|
874 |
|
---|
875 | <varlistentry id="jstatd">
|
---|
876 | <term><command>jstatd</command></term>
|
---|
877 | <listitem>
|
---|
878 | <para>
|
---|
879 | is an RMI server application that monitors for the creation
|
---|
880 | and termination of instrumented JVMs
|
---|
881 | </para>
|
---|
882 | <indexterm zone="openjdk jstatd">
|
---|
883 | <primary sortas="b-jstatd">jstatd</primary>
|
---|
884 | </indexterm>
|
---|
885 | </listitem>
|
---|
886 | </varlistentry>
|
---|
887 |
|
---|
888 | <varlistentry id="jwebserver">
|
---|
889 | <term><command>jwebserver</command></term>
|
---|
890 | <listitem>
|
---|
891 | <para>
|
---|
892 | provides a minimal HTTP server, designed to be used for
|
---|
893 | prototyping, testing, and debugging
|
---|
894 | </para>
|
---|
895 | <indexterm zone="openjdk jwebserver">
|
---|
896 | <primary sortas="b-jwebserver">jwebserver</primary>
|
---|
897 | </indexterm>
|
---|
898 | </listitem>
|
---|
899 | </varlistentry>
|
---|
900 |
|
---|
901 | <varlistentry id="keytool">
|
---|
902 | <term><command>keytool</command></term>
|
---|
903 | <listitem>
|
---|
904 | <para>
|
---|
905 | is a key and certificate management utility
|
---|
906 | </para>
|
---|
907 | <indexterm zone="openjdk keytool">
|
---|
908 | <primary sortas="b-keytool">keytool</primary>
|
---|
909 | </indexterm>
|
---|
910 | </listitem>
|
---|
911 | </varlistentry>
|
---|
912 |
|
---|
913 | <varlistentry id="rmiregistry">
|
---|
914 | <term><command>rmiregistry</command></term>
|
---|
915 | <listitem>
|
---|
916 | <para>
|
---|
917 | creates and starts a remote object registry on the specified
|
---|
918 | port on the current host
|
---|
919 | </para>
|
---|
920 | <indexterm zone="openjdk rmiregistry">
|
---|
921 | <primary sortas="b-rmiregistry">rmiregistry</primary>
|
---|
922 | </indexterm>
|
---|
923 | </listitem>
|
---|
924 | </varlistentry>
|
---|
925 |
|
---|
926 | <varlistentry id="serialver">
|
---|
927 | <term><command>serialver</command></term>
|
---|
928 | <listitem>
|
---|
929 | <para>
|
---|
930 | returns the serialVersionUID for one or more classes in a
|
---|
931 | form suitable for copying into an evolving class
|
---|
932 | </para>
|
---|
933 | <indexterm zone="openjdk serialver">
|
---|
934 | <primary sortas="b-serialver">serialver</primary>
|
---|
935 | </indexterm>
|
---|
936 | </listitem>
|
---|
937 | </varlistentry>
|
---|
938 | </variablelist>
|
---|
939 |
|
---|
940 | </sect2>
|
---|
941 |
|
---|
942 | </sect1>
|
---|