1 '\" t 2 .\" Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved. 3 .\" DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 .\" 5 .\" This code is free software; you can redistribute it and/or modify it 6 .\" under the terms of the GNU General Public License version 2 only, as 7 .\" published by the Free Software Foundation. 8 .\" 9 .\" This code is distributed in the hope that it will be useful, but WITHOUT 10 .\" ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 .\" FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 .\" version 2 for more details (a copy is included in the LICENSE file that 13 .\" accompanied this code). 14 .\" 15 .\" You should have received a copy of the GNU General Public License version 16 .\" 2 along with this work; if not, write to the Free Software Foundation, 17 .\" Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 .\" 19 .\" Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 .\" or visit www.oracle.com if you need additional information or have any 21 .\" questions. 22 .\" 23 .\" Arch: generic 24 .\" Software: JDK 8 25 .\" Date: 21 November 2013 26 .\" SectDesc: Troubleshooting Tools 27 .\" Title: jinfo.1 28 .\" 29 .if n .pl 99999 30 .TH jinfo 1 "21 November 2013" "JDK 8" "Troubleshooting Tools" 31 .\" ----------------------------------------------------------------- 32 .\" * Define some portability stuff 33 .\" ----------------------------------------------------------------- 34 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 35 .\" http://bugs.debian.org/507673 36 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html 37 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 38 .ie \n(.g .ds Aq \(aq 39 .el .ds Aq ' 40 .\" ----------------------------------------------------------------- 41 .\" * set default formatting 42 .\" ----------------------------------------------------------------- 43 .\" disable hyphenation 44 .nh 45 .\" disable justification (adjust text to left margin only) 46 .ad l 47 .\" ----------------------------------------------------------------- 48 .\" * MAIN CONTENT STARTS HERE * 49 .\" ----------------------------------------------------------------- 50 51 .SH NAME 52 jinfo \- Generates configuration information\&. This command is experimental and unsupported\&. 53 .SH SYNOPSIS 54 .sp 55 .nf 56 57 \fBjinfo\fR [ \fIoption\fR ] \fIpid\fR 58 .fi 59 .nf 60 61 \fBjinfo\fR [ \fIoption \fR] \fIexecutable core\fR 62 .fi 63 .nf 64 65 \fBjinfo\fR [ \fIoption \fR] \fI[ servier\-id ] remote\-hostname\-or\-IP\fR 66 .fi 67 .sp 68 .TP 69 \fIoption\fR 70 The command-line options\&. See Options\&. 71 .TP 72 \fIpid\fR 73 The process ID for which the configuration information is to be printed\&. The process must be a Java process\&. To get a list of Java processes running on a machine, use the jps(1) command\&. 74 .TP 75 \fIexecutable\fR 76 The Java executable from which the core dump was produced\&. 77 .TP 78 \fIcore\fR 79 The core file for which the configuration information is to be printed\&. 80 .TP 81 \fIremote-hostname-or-IP\fR 82 The remote debug server \f3hostname\fR or \f3IP\fR address\&. See jsadebugd(1)\&. 83 .TP 84 \fIserver-id\fR 85 An optional unique ID to use when multiple debug servers are running on the same remote host\&. 86 .SH DESCRIPTION 87 The \f3jinfo\fR command prints Java configuration information for a specified Java process or core file or a remote debug server\&. The configuration information includes Java system properties and Java Virtual Machine (JVM) command-line flags\&. If the specified process is running on a 64-bit JVM, then you might need to specify the \f3-J-d64\fR option, for example: \f3jinfo\fR\f3-J-d64 -sysprops pid\fR\&. 88 .PP 89 This utility is unsupported and might not be available in future releases of the JDK\&. In Windows Systems where \f3dbgeng\&.dll\fR is not present, Debugging Tools For Windows must be installed to have these tools working\&. The \f3PATH\fR environment variable should contain the location of the jvm\&.dll that is used by the target process or the location from which the crash dump file was produced\&. For example, \f3set PATH=%JDK_HOME%\ejre\ebin\eclient;%PATH%\fR \&. 90 .SH OPTIONS 91 .TP 92 no-option 93 Prints both command-line flags and system property name-value pairs\&. 94 .TP 95 -flag \fIname\fR 96 .br 97 Prints the name and value of the specified command-line flag\&. 98 .TP 99 -flag \fI[+|-]name\fR 100 .br 101 enables or disables the specified Boolean command-line flag\&. 102 .TP 103 -flag \fIname=value\fR 104 .br 105 Sets the specified command-line flag to the specified value\&. 106 .TP 107 -flags 108 .br 109 Prints command-line flags passed to the JVM\&. 110 .TP 111 -sysprops 112 .br 113 Prints Java system properties as name-value pairs\&. 114 .TP 115 -h 116 .br 117 Prints a help message\&. 118 .TP 119 -help 120 .br 121 Prints a help message\&. 122 .SH SEE\ ALSO 123 .TP 0.2i 124 \(bu 125 jps(1) 126 .TP 0.2i 127 \(bu 128 jsadebugd(1) 129 .RE 130 .br 131 'pl 8.5i 132 'bp | 1 .\" Copyright (c) 1994, 2019, Oracle and/or its affiliates. All rights reserved. 2 .\" DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 .\" 4 .\" This code is free software; you can redistribute it and/or modify it 5 .\" under the terms of the GNU General Public License version 2 only, as 6 .\" published by the Free Software Foundation. 7 .\" 8 .\" This code is distributed in the hope that it will be useful, but WITHOUT 9 .\" ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 .\" FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 11 .\" version 2 for more details (a copy is included in the LICENSE file that 12 .\" accompanied this code). 13 .\" 14 .\" You should have received a copy of the GNU General Public License version 15 .\" 2 along with this work; if not, write to the Free Software Foundation, 16 .\" Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 17 .\" 18 .\" Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 19 .\" or visit www.oracle.com if you need additional information or have any 20 .\" questions. 21 .\" 22 .\" Automatically generated by Pandoc 2.3.1 23 .\" 24 .TH "JINFO" "1" "2018" "JDK 13" "JDK Commands" 25 .hy 26 .SH NAME 27 .PP 28 jinfo \- generate Java configuration information for a specified Java 29 process 30 .SH SYNOPSIS 31 .PP 32 \f[B]Note:\f[R] This command is experimental\ and unsupported. 33 .PP 34 \f[CB]jinfo\f[R] [\f[I]option\f[R]] \f[I]pid\f[R] 35 .TP 36 .B \f[I]option\f[R] 37 This represents the \f[CB]jinfo\f[R] command\-line options. 38 See \f[B]Options for the jinfo Command\f[R]. 39 .RS 40 .RE 41 .TP 42 .B \f[I]pid\f[R] 43 The process ID for which the configuration information is to be printed. 44 The process must be a Java process. 45 To get a list of Java processes running on a machine, use either the 46 \f[CB]ps\f[R] command or, if the JVM processes are not running in a 47 separate docker instance, the \f[B]jps\f[R] command. 48 .RS 49 .PP 50 \f[B]Note:\f[R] JDK 10 has added support for using the Attach API when 51 attaching to Java processes running in a separate docker process. 52 However, the \f[CB]jps\f[R] command will not list the JVM processes that 53 are running in a separate docker instance. 54 If you are trying to connect a Linux host with a Virtual Machine that is 55 in a docker container, you must use tools such as \f[CB]ps\f[R] to look up 56 the PID of the JVM. 57 .RE 58 .SH DESCRIPTION 59 .PP 60 The \f[CB]jinfo\f[R] command prints Java configuration information for a 61 specified Java process. 62 The configuration information includes Java system properties and JVM 63 command\-line flags. 64 If the specified process is running on a 64\-bit JVM, then you might 65 need to specify the \f[CB]\-J\-d64\f[R] option, for example: 66 .RS 67 .PP 68 \f[CB]jinfo\ \-J\-d64\ \-sysprops\f[R] \f[I]pid\f[R] 69 .RE 70 .PP 71 This command is unsupported and might not be available in future 72 releases of the JDK. 73 In Windows Systems where \f[CB]dbgeng.dll\f[R] is not present, the 74 Debugging Tools for Windows must be installed to have these tools work. 75 The \f[CB]PATH\f[R] environment variable should contain the location of 76 the \f[CB]jvm.dll\f[R] that\[aq]s used by the target process or the 77 location from which the core dump file was produced. 78 .SH OPTIONS FOR THE JINFO COMMAND 79 .PP 80 \f[B]Note:\f[R] 81 .PP 82 If none of the following options are used, both the command\-line flags 83 and the system property name\-value pairs are printed. 84 .TP 85 .B \f[CB]\-flag\f[R] \f[I]name\f[R] 86 Prints the name and value of the specified command\-line flag. 87 .RS 88 .RE 89 .TP 90 .B \f[CB]\-flag\f[R] [\f[CB]+\f[R]|\f[CB]\-\f[R]]\f[I]name\f[R] 91 Enables or disables the specified Boolean command\-line flag. 92 .RS 93 .RE 94 .TP 95 .B \f[CB]\-flag\f[R] \f[I]name\f[R]\f[CB]=\f[R]\f[I]value\f[R] 96 Sets the specified command\-line flag to the specified value. 97 .RS 98 .RE 99 .TP 100 .B \f[CB]\-flags\f[R] 101 Prints command\-line flags passed to the JVM. 102 .RS 103 .RE 104 .TP 105 .B \f[CB]\-sysprops\f[R] 106 Prints Java system properties as name\-value pairs. 107 .RS 108 .RE 109 .TP 110 .B \f[CB]\-h\f[R] or \f[CB]\-help\f[R] 111 Prints a help message. 112 .RS 113 .RE |