source: general/prog/openjdk.xml@ 10b16af

10.0 10.1 11.0 ken/refactor-virt lazarus qt5new trunk upgradedb xry111/git-date xry111/git-date-for-trunk xry111/git-date-test
Last change on this file since 10b16af was 10b16af, checked in by Pierre Labastie <pieere@…>, 17 months ago

Fix openjdk fopr glibc-32

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@23589 af4574ff-66df-0310-9fd7-8a98e5e911e0

  • Property mode set to 100644
File size: 32.8 KB
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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6
7 <!ENTITY ojdk-tarball "jdk-&openjdk-version;+&openjdk-build;.tar.bz2">
8 <!ENTITY ojdk-repo "http://hg.openjdk.java.net/jdk-updates/jdk14u">
9 <!ENTITY ojdk-download "&ojdk-repo;/archive/&ojdk-tarball;">
10
11 <!ENTITY anduin-download "&sources-anduin-http;/OpenJDK/OpenJDK-&openjdk-version;">
12
13 <!ENTITY ojdk-md5sum "bf287746bb1be5e0d94c27e3d79d800e">
14 <!ENTITY ojdk-size "80 MB">
15
16 <!ENTITY jtreg-version "4.2-b13-517">
17 <!ENTITY jtreg-download "&anduin-download;/jtreg-&jtreg-version;.tar.gz">
18 <!ENTITY jtreg-md5sum "ffcef8f1caa5c22f4d006fb82e074de4">
19 <!ENTITY jtreg-size "6.8 MB">
20
21 <!ENTITY ojdk-bdsize "5.3 GB (an additional 394 MB for tests)">
22 <!ENTITY ojdk-time "4.5 SBU with 4 jobs (an additional 51 SBU for tests with 4 jobs)">
23]>
24
25<sect1 id="openjdk" xreflabel="OpenJDK-&openjdk-version;">
26 <?dbhtml filename="openjdk.html" ?>
27
28 <sect1info>
29 <othername>$LastChangedBy$</othername>
30 <date>$Date$</date>
31 </sect1info>
32
33 <title>OpenJDK-&openjdk-version;</title>
34
35 <indexterm zone="openjdk">
36 <primary sortas="a-OpenJDK">OpenJDK</primary>
37 </indexterm>
38
39 <sect2 role="package">
40 <title>Introduction to OpenJDK</title>
41
42 <para>
43 <application>OpenJDK</application> is an open-source implementation
44 of Oracle's Java Standard Edition platform.
45 <application>OpenJDK</application> is useful for developing
46 <application>Java</application> programs, and provides a complete
47 runtime environment to run <application>Java</application> programs.
48 </para>
49
50 &lfs10_checked;
51
52 <para>
53 OpenJDK is GPL'd code, with a special exception made for non-free
54 projects to use these classes in their proprietary products.
55 In similar fashion to the LGPL, which allows non-free programs to link
56 to libraries provided by free software, the
57 <ulink url="http://openjdk.java.net/legal/gplv2+ce.html">GNU
58 General Public License, version 2, with the Classpath Exception</ulink>
59 allows third party programs to use classes provided by free software
60 without the requirement that the third party software also be free. As
61 with the LGPL, any modifications made to the free software portions of a
62 third party application, must also be made freely available.
63 </para>
64
65 <note>
66 <para>
67 The <application>OpenJDK</application> source includes a very
68 thorough, open source test suite using the
69 <application>JTreg</application> test harness. The testing instructions
70 below allow to test the just built JDK for reasonable compatibility
71 with the proprietary Oracle JDK. However, in order for an independent
72 implementation to claim compatibility, it must pass a proprietary
73 <application>JCK/TCK</application> test suite. No claims of
74 compatibility, even partial compatibility, may be made without passing
75 an approved test suite.
76 </para>
77
78 <para>
79 Oracle does provide free community access, on a case by case basis, to
80 a closed toolkit to ensure 100% compatibility with its proprietary JDK.
81 Neither the binary version provided on the <xref linkend="java"/> page
82 nor the JVM built with the instructions below have been tested against
83 the <ulink
84 url="http://openjdk.java.net/groups/conformance/JckAccess/jck-access.html">
85 TCK</ulink>. Any version that is built using the instructions given,
86 cannot claim to be compatible with the proprietary JDK, without the
87 user applying for, and completing the compatibility tests themselves.
88 </para>
89
90 <para>
91 With that in mind, the binaries produced using this build method are
92 regularly tested against the TCK by the members listed on the site
93 above. In addition to the community license above, an educational,
94 non-commercial license for the TCK can be obtained from <ulink
95 url="http://www.oracle.com/technetwork/java/index-137188.html">
96 here</ulink>.
97 </para>
98 </note>
99
100 <bridgehead renderas="sect3">Package Information</bridgehead>
101 <itemizedlist spacing="compact">
102 <listitem>
103 <para>
104 Download (HTTP): <ulink url="&ojdk-download;"/>
105 </para>
106 </listitem>
107 <listitem>
108 <para>
109 Download (FTP): <ulink url=" "/>
110 </para>
111 </listitem>
112 <listitem>
113 <para>
114 Download MD5 sum: &ojdk-md5sum;
115 </para>
116 </listitem>
117 <listitem>
118 <para>
119 Download Size: &ojdk-size;
120 </para>
121 </listitem>
122 <listitem>
123 <para>
124 Estimated disk space required: &ojdk-bdsize;
125 </para>
126 </listitem>
127 <listitem>
128 <para>
129 Estimated build time: &ojdk-time;
130 </para>
131 </listitem>
132 </itemizedlist>
133
134 <bridgehead renderas="sect3">Additional Downloads</bridgehead>
135
136 <bridgehead renderas="sect4">Optional test harness</bridgehead>
137
138 <itemizedlist spacing='compact'>
139 <listitem>
140 <para>
141 <ulink url="&jtreg-download;"/>
142 </para>
143 </listitem>
144 <listitem>
145 <para>
146 Download MD5 sum: &jtreg-md5sum;
147 </para>
148 </listitem>
149 <listitem>
150 <para>
151 Download Size: &jtreg-size;
152 </para>
153 </listitem>
154 </itemizedlist>
155
156 <bridgehead renderas="sect4">Required patch</bridgehead>
157
158 <itemizedlist spacing='compact'>
159 <listitem>
160 <para>
161 <ulink url="&patch-root;/openjdk-&openjdk-version;-make_4.3_fix-1.patch"/>
162 </para>
163 </listitem>
164 </itemizedlist>
165
166 <bridgehead renderas="sect3">OpenJDK Dependencies</bridgehead>
167
168 <bridgehead renderas="sect4">Required Dependencies</bridgehead>
169 <para role="required">
170 An existing binary (<xref linkend="java"/> or an earlier built
171 version of this package. The instructions below assume that
172 you are using <xref linkend="ojdk-conf"/>),
173 <xref linkend="alsa-lib"/>,
174 <xref linkend="cpio"/>,
175 <xref linkend="cups"/>,
176 <xref linkend="unzip"/>,
177 <xref linkend="which"/>,
178 <xref linkend="xorg7-lib"/>, and
179 <xref linkend="zip"/>
180 </para>
181
182 <bridgehead renderas="sect4">Recommended</bridgehead>
183 <para role="recommended">
184 <xref linkend="make-ca"/>,
185 <xref linkend="giflib"/>,
186 <xref linkend="lcms2"/>,
187 <xref linkend="libjpeg"/>,
188 <xref linkend="libpng"/>, and
189 <xref linkend="wget"/>
190 </para>
191
192 <bridgehead renderas="sect4">Optional</bridgehead>
193 <para role="optional">
194 <xref linkend="git"/>,
195 <xref linkend="graphviz"/>,
196 <xref linkend="mercurial"/>,
197 an X Window manager such as <xref linkend="twm"/> (for the tests), and
198 <ulink url="https://pandoc.org/">pandoc</ulink>
199 </para>
200
201 <para condition="html" role="usernotes">User Notes:
202 <ulink url="&blfs-wiki;/openjdk"/></para>
203
204 </sect2>
205
206 <sect2 role="installation">
207 <title>Installation of OpenJDK</title>
208
209 <para>
210 If you have downloaded the optional test harness, unpack it now:
211 </para>
212
213<screen><userinput>tar -xf ../jtreg-&jtreg-version;.tar.gz</userinput></screen>
214
215 <para>
216 Apply a patch to allow building with make-4.3:
217 </para>
218
219<screen><userinput>patch -p1 -i ../openjdk-&openjdk-version;-make_4.3_fix-1.patch</userinput></screen>
220
221 <para>
222 Fix an issue coming from a removed header in glibc-2.32:
223 </para>
224
225<screen><userinput>sed -i /sysctl/d \
226 src/jdk.incubator.jpackage/unix/native/libapplauncher/PosixPlatform.cpp</userinput></screen>
227
228 <note>
229 <para>
230 Before proceeding, you should ensure that your environment
231 <envar>PATH</envar> variable contains the location of the Java
232 compiler used for bootstrapping <application>OpenJDK</application>.
233 This is the only requirement for the environment. Modern Java
234 installations do not need <envar>JAVA_HOME</envar> and
235 <envar>CLASSPATH</envar> is not used here. Furthermore, OpenJDK
236 developers recommend to unset <envar>JAVA_HOME</envar>.
237 </para>
238
239 <para>
240 The build system does not support the <option>-j</option> switch in
241 <envar>MAKEFLAGS</envar>. See the command explanation for
242 <option>--with-jobs=</option> and <option>--with-test-jobs=</option>
243 for more information on customizing parallelization.
244 </para>
245 </note>
246
247 <para>
248 Configure and build the package with the following commands
249 (--with-milestone value can be modified to fit user preferences):
250 </para>
251
252<screen><userinput>unset JAVA_HOME &amp;&amp;
253bash configure --enable-unlimited-crypto \
254 --with-extra-cflags="$CFLAGS -fcommon" \
255 --disable-warnings-as-errors \
256 --with-stdc++lib=dynamic \
257 --with-giflib=system \
258 --with-jtreg=$PWD/jtreg \
259 --with-lcms=system \
260 --with-libjpeg=system \
261 --with-libpng=system \
262 --with-zlib=system \
263 --with-version-build="&openjdk-build;" \
264 --with-version-pre="" \
265 --with-version-opt="" \
266 --with-cacerts-file=/etc/pki/tls/java/cacerts &amp;&amp;
267make images</userinput></screen>
268
269 <para>
270 To test the results, you will need to execute the jtreg program.
271 You can set the number of concurrent tests by adding the
272 <parameter>-conc:<replaceable>&lt;X&gt;</replaceable></parameter>
273 value in the below command (tests will run sequentially otherwise):
274 </para>
275
276<screen remap="test"><userinput>export JT_JAVA=$(echo $PWD/build/*/jdk) &amp;&amp;
277jtreg/bin/jtreg -jdk:$JT_JAVA -automatic -ignore:quiet -v1 \
278 test/jdk:tier1 test/langtools:tier1 &amp;&amp;
279unset JT_JAVA</userinput></screen>
280
281 <para>
282 For more control over the test suite, review the documentation
283 available in <filename>jtreg/doc/jtreg/usage.txt</filename>. To review
284 the results, see the files
285 <filename>JTreport/test_{jdk,langtools}/text/stats.txt</filename> and
286 <filename>JTreport/test_{jdk,langtools}/text/summary.txt</filename>.
287 You should expect to see around 40 failures and about the same number
288 of errors.
289 </para>
290 <!-- 11.0.2+9:
291 for x86_64: 2 Errors, 28 Failures
292 for i686: 13 Errors, 48 Failures
293 12.0.2+10:
294 for x86_64: 5828 Passed, 52 Errors, no failures
295 for i686: PENDING
296 14.0.1+7:
297 for x86_64: passed: 5,836; failed: 42; error: 50-->
298
299 <para>
300 Install the package with the following commands as the
301 <systemitem class="username">root</systemitem> user:
302 </para>
303
304<screen role="root"><userinput>install -vdm755 /opt/jdk-&openjdk-version;+&openjdk-build; &amp;&amp;
305cp -Rv build/*/images/jdk/* /opt/jdk-&openjdk-version;+&openjdk-build; &amp;&amp;
306chown -R root:root /opt/jdk-&openjdk-version;+&openjdk-build; &amp;&amp;
307for s in 16 24 32 48; do
308 install -vDm644 src/java.desktop/unix/classes/sun/awt/X11/java-icon${s}.png \
309 /usr/share/icons/hicolor/${s}x${s}/apps/java.png
310done</userinput></screen>
311
312 <note>
313 <para>
314 If you only wish to install the Java Runtime Environment, you can
315 substitute <filename>build/*/images/jre</filename> in the above
316 <command>cp</command> command.
317 </para>
318 </note>
319
320 <para>
321 There are now two <application>OpenJDK</application> SDKs installed
322 in <filename class="directory">/opt</filename>. You should decide on
323 which one you would like to use as the default. Normally, you would opt
324 for the just installed <application>OpenJDK</application>. If so, do
325 the following as the <systemitem class="username">root</systemitem>
326 user:
327 </para>
328
329<screen role="root"><userinput>ln -v -nsf jdk-&openjdk-version;+&openjdk-build; /opt/jdk</userinput></screen>
330
331 <para>
332 If desired, you may create .desktop files to add entries
333 in the menu for <command>java</command>
334 and <command>jconsole</command>. The needed icons have already been
335 installed. As the <systemitem class="username">root</systemitem> user:
336 </para>
337
338<screen role="root"><userinput>mkdir -pv /usr/share/applications &amp;&amp;
339
340cat &gt; /usr/share/applications/openjdk-java.desktop &lt;&lt; "EOF" &amp;&amp;
341<literal>[Desktop Entry]
342Name=OpenJDK Java &openjdk-version; Runtime
343Comment=OpenJDK Java &openjdk-version; Runtime
344Exec=/opt/jdk/bin/java -jar
345Terminal=false
346Type=Application
347Icon=java
348MimeType=application/x-java-archive;application/java-archive;application/x-jar;
349NoDisplay=true</literal>
350EOF
351cat &gt; /usr/share/applications/openjdk-jconsole.desktop &lt;&lt; "EOF"
352<literal>[Desktop Entry]
353Name=OpenJDK Java &openjdk-version; Console
354Comment=OpenJDK Java &openjdk-version; Console
355Keywords=java;console;monitoring
356Exec=/opt/jdk/bin/jconsole
357Terminal=false
358Type=Application
359Icon=java
360Categories=Application;System;</literal>
361EOF</userinput></screen>
362
363 </sect2>
364
365 <sect2 role="commands">
366 <title>Command Explanations</title>
367
368 <para>
369 <command>bash configure...</command>: the top level
370 <filename>configure</filename> is a wrapper around the autotools one.
371 It is not executable and must be run through <command>bash</command>.
372 </para>
373
374 <para>
375 <parameter>--with-extra-cflags=-fcommon</parameter>: Allows building
376 with GCC 10.
377 <!-- patchs are available upstream and will be included in java 15 -->
378 </para>
379
380 <para>
381 <parameter>--enable-unlimited-crypto</parameter>: Because of limitations
382 on the usage of cryptography in some countries, there is the possibility
383 to limit the size of encryption keys and the use of some algorithms in a
384 policy file. This switch allows to ship a policy file with no
385 restriction. It is the responsibility of the user to ensure proper
386 adherence to the law.
387 </para>
388
389 <para>
390 <parameter>--disable-warnings-as-errors</parameter>: This switch disables
391 use of <envar>-Werror</envar> in the build.
392 </para>
393
394 <para>
395 <parameter>--with-stdc++lib=dynamic</parameter>: This switch forces the
396 build system to link to <filename>libstdc++.so</filename> (dynamic)
397 instead of <filename>libstdc++.a</filename> (static).
398 </para>
399
400 <para>
401 <option>--with-jobs=<replaceable>&lt;X&gt;</replaceable></option>:
402 The <parameter>-j</parameter> passed to make does not work with make as
403 invoked here. By default, the build system will use the number of
404 CPUs - 1.
405 </para>
406
407 <para>
408 <parameter>--with-jtreg=$PWD/jtreg</parameter>: This switch tells
409 configure where to find jtreg. Omit if you have not downloaded the
410 optional test suite.
411 </para>
412
413 <para>
414 <parameter>--with-{giflib,lcms,libjpeg,libpng,zlib}=system</parameter>:
415 These switches force the build system to use the system libraries instead
416 of the bundled versions.
417 </para>
418
419 <para>
420 <parameter>--with-version-build</parameter>: Currently, the build
421 system does not include the build number in the version string. It has
422 to be specified here.
423 </para>
424
425 <para>
426 <parameter>--with-version-pre</parameter>: This switch allows you to
427 prefix the version string with a custom string.
428 </para>
429
430 <para>
431 <parameter>--with-version-opt</parameter>: This switch allows you to add
432 an optional build description to the version string.
433 </para>
434
435 <para>
436 <parameter>--with-cacerts-file=/etc/pki/tls/java/cacerts</parameter>:
437 Specifies where to find a <filename>cacerts</filename> file,
438 <filename>/etc/pki/tls/java/</filename> on a BLFS system. Otherwise, an
439 empty one is created. You can use the
440 <command>/usr/sbin/make-ca --force</command> command to generate it, once
441 you have installed the Java binaries.
442 </para>
443
444 <para>
445 <option>--with-boot-jdk</option>: This switch provides the
446 location of the temporary <application>JDK</application>. It is normally
447 not needed if <command>java</command> is found in the <envar>PATH</envar>.
448 </para>
449
450 <para>
451 <command>find ... -iname '*.diz' -delete</command>: This command
452 removes redundant files.
453 </para>
454
455 </sect2>
456
457 <sect2 role="configuration"
458 id="openjdk-config"
459 xreflabel="Configuring OpenJDK">
460 <title>Configuring OpenJDK</title>
461
462 <sect3>
463 <title>Configuration Information</title>
464
465 <para>
466 Normally, the JAVA environment has been configured after installing
467 the binary version, and can be used with the just built package as well.
468 Review <xref linkend="ojdk-conf"/> in case you want to modify
469 something.
470 </para>
471
472 <para>
473 To test if the man pages are correctly installed, issue
474 <command>source /etc/profile</command> and <command>man java</command>
475 to display the respective man page.
476 </para>
477
478 </sect3>
479
480 <sect3>
481 <title>
482 Settting up the JRE Certificate Authority Certificates (cacerts) file
483 </title>
484
485 <para>
486 If you have run the instructions on the <xref linkend="make-ca"/> page,
487 you only need to create a symlink in the default location for the
488 <filename>cacerts</filename> file. As user <systemitem
489 class="username">root</systemitem>:
490 </para>
491
492<screen role="root"><userinput>ln -sfv /etc/pki/tls/java/cacerts /opt/jdk/lib/security/cacerts</userinput></screen>
493
494 <para>
495 To check the installation, issue:
496 </para>
497
498<screen role="root"><userinput>cd /opt/jdk
499bin/keytool -list -cacerts</userinput></screen>
500
501 <para>
502 At the prompt <computeroutput>Enter keystore password:</computeroutput>,
503 enter <userinput>changeit</userinput> (the default) or just press the
504 <quote>Enter</quote> key. If the <filename>cacerts</filename> file was
505 installed correctly, you will see a list of the certificates with
506 related information for each one. If not, you need to reinstall them.
507 </para>
508
509 </sect3>
510
511 </sect2>
512
513 <sect2 role="content">
514 <title>Contents</title>
515
516 <segmentedlist>
517 <segtitle>Installed Programs</segtitle>
518 <segtitle>Installed Libraries</segtitle>
519 <segtitle>Installed Directory</segtitle>
520
521 <seglistitem>
522 <seg>jaotc, jar, jarsigner, java, javac, javadoc, javap, jcmd,
523 jconsole, jdb, jdeprscan, jdeps, jfr, jhsdb, jimage, jinfo, jjs,
524 jlink, jmap, jmod, jpackage, jps, jrunscript, jshell, jstack,
525 jstat, jstatd, keytool, rmic, rmid, rmiregistry, and serialver</seg>
526 <seg>/opt/jdk-&openjdk-version;/lib/*</seg>
527 <seg>/opt/jdk-&openjdk-version;</seg>
528 </seglistitem>
529 </segmentedlist>
530
531 <variablelist>
532 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
533 <?dbfo list-presentation="list"?>
534 <?dbhtml list-presentation="table"?>
535
536 <varlistentry id="jaotc">
537 <term><command>jaotc</command></term>
538 <listitem>
539 <para>
540 is an <quote>ahead-of-time</quote> java class compiler.
541 </para>
542 <indexterm zone="openjdk jaotc">
543 <primary sortas="b-jaotc">jaotc</primary>
544 </indexterm>
545 </listitem>
546 </varlistentry>
547
548 <varlistentry id="jar">
549 <term><command>jar</command></term>
550 <listitem>
551 <para>
552 combines multiple files into a single jar archive.
553 </para>
554 <indexterm zone="openjdk jar">
555 <primary sortas="b-jar">jar</primary>
556 </indexterm>
557 </listitem>
558 </varlistentry>
559
560 <varlistentry id="jarsigner">
561 <term><command>jarsigner</command></term>
562 <listitem>
563 <para>
564 signs jar files and verifies the signatures and integrity
565 of a signed jar file.
566 </para>
567 <indexterm zone="openjdk jarsigner">
568 <primary sortas="b-jarsigner">jarsigner</primary>
569 </indexterm>
570 </listitem>
571 </varlistentry>
572
573 <varlistentry id="java-prog">
574 <term><command>java</command></term>
575 <listitem>
576 <para>
577 launches a Java application by starting a Java runtime
578 environment, loading a specified class and invoking its main
579 method.
580 </para>
581 <indexterm zone="openjdk java-prog">
582 <primary sortas="b-java-prog">java</primary>
583 </indexterm>
584 </listitem>
585 </varlistentry>
586
587 <varlistentry id="javac">
588 <term><command>javac</command></term>
589 <listitem>
590 <para>
591 reads class and interface definitions, written in the
592 Java programming language, and compiles them into bytecode
593 class files.
594 </para>
595 <indexterm zone="openjdk javac">
596 <primary sortas="b-javac">javac</primary>
597 </indexterm>
598 </listitem>
599 </varlistentry>
600
601 <varlistentry id="javadoc">
602 <term><command>javadoc</command></term>
603 <listitem>
604 <para>
605 parses the declarations and documentation comments in a
606 set of Java source files and produces a corresponding set of
607 HTML pages describing the classes, interfaces, constructors,
608 methods, and fields.
609 </para>
610 <indexterm zone="openjdk javadoc">
611 <primary sortas="b-javadoc">javadoc</primary>
612 </indexterm>
613 </listitem>
614 </varlistentry>
615
616 <varlistentry id="javap">
617 <term><command>javap</command></term>
618 <listitem>
619 <para>
620 disassembles a Java class file.
621 </para>
622 <indexterm zone="openjdk javap">
623 <primary sortas="b-javap">javap</primary>
624 </indexterm>
625 </listitem>
626 </varlistentry>
627
628 <varlistentry id="jcmd">
629 <term><command>jcmd</command></term>
630 <listitem>
631 <para>
632 is a utility to send diagnostic command requests to a running
633 Java Virtual Machine.
634 </para>
635 <indexterm zone="openjdk jcmd">
636 <primary sortas="b-jcmd">jcmd</primary>
637 </indexterm>
638 </listitem>
639 </varlistentry>
640
641 <varlistentry id="jconsole">
642 <term><command>jconsole</command></term>
643 <listitem>
644 <para>
645 is a graphical console tool to monitor and manage both
646 local and remote Java applications and virtual machines.
647 </para>
648 <indexterm zone="openjdk jconsole">
649 <primary sortas="b-jconsole">jconsole</primary>
650 </indexterm>
651 </listitem>
652 </varlistentry>
653
654 <varlistentry id="jdb">
655 <term><command>jdb</command></term>
656 <listitem>
657 <para>
658 is a simple command-line debugger for Java classes.
659 </para>
660 <indexterm zone="openjdk jdb">
661 <primary sortas="b-jdb">jdb</primary>
662 </indexterm>
663 </listitem>
664 </varlistentry>
665
666 <varlistentry id="jdeprscan">
667 <term><command>jdeprscan</command></term>
668 <listitem>
669 <para>
670 scans class or jar files for uses of deprecated API elements.
671 </para>
672 <indexterm zone="openjdk jdeprscan">
673 <primary sortas="b-jdeprscan">jdeprscan</primary>
674 </indexterm>
675 </listitem>
676 </varlistentry>
677
678 <varlistentry id="jdeps">
679 <term><command>jdeps</command></term>
680 <listitem>
681 <para>
682 shows the package-level or class-level dependencies of
683 Java class files.
684 </para>
685 <indexterm zone="openjdk jdeps">
686 <primary sortas="b-jdeps">jdeps</primary>
687 </indexterm>
688 </listitem>
689 </varlistentry>
690
691 <varlistentry id="jfr">
692 <term><command>jfr</command></term>
693 <listitem>
694 <para>
695 is a tool for working with <quote>Flight Recorder</quote> files.
696 </para>
697 <indexterm zone="openjdk jfr">
698 <primary sortas="b-jfr">jfr</primary>
699 </indexterm>
700 </listitem>
701 </varlistentry>
702
703 <varlistentry id="jhsdb">
704 <term><command>jhsdb</command></term>
705 <listitem>
706 <para>
707 is a tool to analyze the content of a core dump from a
708 crashed Java Virtual Machine (JVM).
709 </para>
710 <indexterm zone="openjdk jhsdb">
711 <primary sortas="b-jhsdb">jhsdb</primary>
712 </indexterm>
713 </listitem>
714 </varlistentry>
715
716 <varlistentry id="jimage">
717 <term><command>jimage</command></term>
718 <listitem>
719 <para>
720 is used to list, extract, verify, or get information about
721 modules in <emphasis>jimage</emphasis> format.
722 </para>
723 <indexterm zone="openjdk jimage">
724 <primary sortas="b-jimage">jimage</primary>
725 </indexterm>
726 </listitem>
727 </varlistentry>
728
729 <varlistentry id="jinfo">
730 <term><command>jinfo</command></term>
731 <listitem>
732 <para>
733 prints Java configuration information for a given Java
734 process, core file, or a remote debug server.
735 </para>
736 <indexterm zone="openjdk jinfo">
737 <primary sortas="b-jinfo">jinfo</primary>
738 </indexterm>
739 </listitem>
740 </varlistentry>
741
742 <varlistentry id="jjs">
743 <term><command>jjs</command></term>
744 <listitem>
745 <para>
746 is a command-line tool used to invoke the Nashorn engine. It
747 can be used to interpret one or several script files, or to run
748 an interactive shell.
749 </para>
750 <indexterm zone="openjdk jjs">
751 <primary sortas="b-jjs">jjs</primary>
752 </indexterm>
753 </listitem>
754 </varlistentry>
755
756 <varlistentry id="jlink">
757 <term><command>jlink</command></term>
758 <listitem>
759 <para>
760 is used to assemble and optimize a set of modules and their
761 dependencies into a custom runtime image.
762 </para>
763 <indexterm zone="openjdk jlink">
764 <primary sortas="b-jlink">jlink</primary>
765 </indexterm>
766 </listitem>
767 </varlistentry>
768
769 <varlistentry id="jmap">
770 <term><command>jmap</command></term>
771 <listitem>
772 <para>
773 prints shared object memory maps or heap memory details
774 of a given process, core file, or a remote debug server.
775 </para>
776 <indexterm zone="openjdk jmap">
777 <primary sortas="b-jmap">jmap</primary>
778 </indexterm>
779 </listitem>
780 </varlistentry>
781
782 <varlistentry id="jmod">
783 <term><command>jmod</command></term>
784 <listitem>
785 <para>
786 creates JMOD files and lists the content of existing JMOD files.
787 </para>
788 <indexterm zone="openjdk jmod">
789 <primary sortas="b-jmod">jmod</primary>
790 </indexterm>
791 </listitem>
792 </varlistentry>
793
794 <varlistentry id="jpackage">
795 <term><command>jpackage</command></term>
796 <listitem>
797 <para>
798 generates java application packages and images.
799 </para>
800 <indexterm zone="openjdk jpackage">
801 <primary sortas="b-jpackage">jpackage</primary>
802 </indexterm>
803 </listitem>
804 </varlistentry>
805
806 <varlistentry id="jps">
807 <term><command>jps</command></term>
808 <listitem>
809 <para>
810 lists the instrumented JVMs on the target system.
811 </para>
812 <indexterm zone="openjdk jps">
813 <primary sortas="b-jps">jps</primary>
814 </indexterm>
815 </listitem>
816 </varlistentry>
817
818 <varlistentry id="jrunscript">
819 <term><command>jrunscript</command></term>
820 <listitem>
821 <para>
822 is a command line script shell.
823 </para>
824 <indexterm zone="openjdk jrunscript">
825 <primary sortas="b-jrunscript">jrunscript</primary>
826 </indexterm>
827 </listitem>
828 </varlistentry>
829
830 <varlistentry id="jshell">
831 <term><command>jshell</command></term>
832 <listitem>
833 <para>
834 is an interactive tool for learning the Java programming
835 language and prototyping Java code.
836 </para>
837 <indexterm zone="openjdk jshell">
838 <primary sortas="b-jshell">jshell</primary>
839 </indexterm>
840 </listitem>
841 </varlistentry>
842
843 <varlistentry id="jstack">
844 <term><command>jstack</command></term>
845 <listitem>
846 <para>
847 prints Java stack traces of Java threads for a given
848 Java process, core file, or a remote debug server.
849 </para>
850 <indexterm zone="openjdk jstack">
851 <primary sortas="b-jstack">jstack</primary>
852 </indexterm>
853 </listitem>
854 </varlistentry>
855
856 <varlistentry id="jstat">
857 <term><command>jstat</command></term>
858 <listitem>
859 <para>
860 displays performance statistics for an instrumented JVM.
861 </para>
862 <indexterm zone="openjdk jstat">
863 <primary sortas="b-jstat">jstat</primary>
864 </indexterm>
865 </listitem>
866 </varlistentry>
867
868 <varlistentry id="jstatd">
869 <term><command>jstatd</command></term>
870 <listitem>
871 <para>
872 is an RMI server application that monitors for the creation
873 and termination of instrumented JVMs.
874 </para>
875 <indexterm zone="openjdk jstatd">
876 <primary sortas="b-jstatd">jstatd</primary>
877 </indexterm>
878 </listitem>
879 </varlistentry>
880
881 <varlistentry id="keytool">
882 <term><command>keytool</command></term>
883 <listitem>
884 <para>
885 is a key and certificate management utility.
886 </para>
887 <indexterm zone="openjdk keytool">
888 <primary sortas="b-keytool">keytool</primary>
889 </indexterm>
890 </listitem>
891 </varlistentry>
892 <!--
893 <varlistentry id="pack200">
894 <term><command>pack200</command></term>
895 <listitem>
896 <para>
897 is a Java application that transforms a jar file into a
898 compressed pack200 file using the Java gzip compressor.
899 </para>
900 <indexterm zone="openjdk pack200">
901 <primary sortas="b-pack200">pack200</primary>
902 </indexterm>
903 </listitem>
904 </varlistentry>
905 -->
906 <varlistentry id="rmic">
907 <term><command>rmic</command></term>
908 <listitem>
909 <para>
910 generates stub and skeleton class files for remote objects
911 from the names of compiled Java classes that contain remote
912 object implementations.
913 </para>
914 <indexterm zone="openjdk rmic">
915 <primary sortas="b-rmic">rmic</primary>
916 </indexterm>
917 </listitem>
918 </varlistentry>
919
920 <varlistentry id="rmid">
921 <term><command>rmid</command></term>
922 <listitem>
923 <para>
924 starts the activation system daemon.
925 </para>
926 <indexterm zone="openjdk rmid">
927 <primary sortas="b-rmid">rmid</primary>
928 </indexterm>
929 </listitem>
930 </varlistentry>
931
932 <varlistentry id="rmiregistry">
933 <term><command>rmiregistry</command></term>
934 <listitem>
935 <para>
936 creates and starts a remote object registry on the specified
937 port on the current host.
938 </para>
939 <indexterm zone="openjdk rmiregistry">
940 <primary sortas="b-rmiregistry">rmiregistry</primary>
941 </indexterm>
942 </listitem>
943 </varlistentry>
944
945 <varlistentry id="serialver">
946 <term><command>serialver</command></term>
947 <listitem>
948 <para>
949 returns the serialVersionUID for one or more classes in a
950 form suitable for copying into an evolving class.
951 </para>
952 <indexterm zone="openjdk serialver">
953 <primary sortas="b-serialver">serialver</primary>
954 </indexterm>
955 </listitem>
956 </varlistentry>
957 <!--
958 <varlistentry id="unpack200">
959 <term><command>unpack200</command></term>
960 <listitem>
961 <para>
962 is a native implementation that transforms a packed file
963 produced by <application>pack200</application> into a jar
964 file.
965 </para>
966 <indexterm zone="openjdk unpack200">
967 <primary sortas="b-unpack200">unpack200</primary>
968 </indexterm>
969 </listitem>
970 </varlistentry>
971 -->
972 </variablelist>
973
974 </sect2>
975
976</sect1>
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