src/linux/doc/man/jstack.1

'\" t
.\"  Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
.\"
.\" DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
.\"
.\" This code is free software; you can redistribute it and/or modify it
.\" under the terms of the GNU General Public License version 2 only, as
.\" published by the Free Software Foundation.
.\"
.\" This code is distributed in the hope that it will be useful, but WITHOUT
.\" ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
.\" FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
.\" version 2 for more details (a copy is included in the LICENSE file that
.\" accompanied this code).
.\"
.\" You should have received a copy of the GNU General Public License version
.\" 2 along with this work; if not, write to the Free Software Foundation,
.\" Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
.\"
.\" Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
.\" or visit www.oracle.com if you need additional information or have any
.\" questions.
.\"
.\"     Arch: generic
.\"     Software: JDK 8
.\"     Date: 21 November 2013
.\"     SectDesc: Troubleshooting Tools
.\"     Title: jstack.1
.\"
.if n .pl 99999
.TH jstack 1 "21 November 2013" "JDK 8" "Troubleshooting Tools"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------

.SH NAME    
jstack \- Prints Java thread stack traces for a Java process, core file, or remote debug server\&. This command is experimental and unsupported\&.
.SH SYNOPSIS    
.sp     
.nf     

\fBjstack\fR [ \fIoptions\fR ] \fIpid\fR 
.fi     
.nf     

\fBjstack\fR [ \fIoptions\fR ] \fIexecutable\fR \fIcore\fR
.fi     
.nf     

\fBjstack\fR [ \fIoptions\fR ] [ \fIserver\-id\fR@ ] \fIremote\-hostname\-or\-IP\fR
.fi     
.sp     
.TP     
\fIoptions\fR
The command-line options\&. See Options\&.
.TP     
\fIpid\fR
The process ID for which the stack trace is printed\&. The process must be a Java process\&. To get a list of Java processes running on a machine, use the jps(1) command\&.
.TP     
\fIexecutable\fR
The Java executable from which the core dump was produced\&.
.TP     
\fIcore\fR
The core file for which the stack trace is to be printed\&.
.TP     
\fIremote-hostname-or-IP\fR
The remote debug server \f3hostname\fR or \f3IP\fR address\&. See jsadebugd(1)\&.
.TP     
\fIserver-id\fR
An optional unique ID to use when multiple debug servers are running on the same remote host\&.
.SH DESCRIPTION    
The \f3jstack\fR command prints Java stack traces of Java threads for a specified Java process, core file, or remote debug server\&. For each Java frame, the full class name, method name, byte code index (BCI), and line number, when available, are printed\&. With the \f3-m\fR option, the \f3jstack\fR command prints both Java and native frames of all threads with the program counter (PC)\&. For each native frame, the closest native symbol to PC, when available, is printed\&. C++ mangled names are not demangled\&. To demangle C++ names, the output of this command can be piped to \f3c++filt\fR\&. When the specified process is running on a 64-bit Java Virtual Machine, you might need to specify the \f3-J-d64\fR option, for example: \f3jstack -J-d64 -m pid\fR\&.
.PP
\fINote:\fR This utility is unsupported and might not be available in future release of the JDK\&. In Windows Systems where the dbgeng\&.dll file is not present, Debugging Tools For Windows must be installed so these tools work\&. The \f3PATH\fR environment variable needs to 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:
.sp     
.nf     
\f3set PATH=<jdk>\ejre\ebin\eclient;%PATH%\fP
.fi     
.nf     
\f3\fP
.fi     
.sp     
.SH OPTIONS    
.TP
-F
.br
Force a stack dump when \f3jstack\fR [\f3-l\fR] \f3pid\fR does not respond\&.
.TP
-l
.br
Long listing\&. Prints additional information about locks such as a list of owned \f3java\&.util\&.concurrent\fR ownable synchronizers\&. See the \f3AbstractOwnableSynchronizer\fR class description at http://docs\&.oracle\&.com/javase/8/docs/api/java/util/concurrent/locks/AbstractOwnableSynchronizer\&.html
.TP
-m
.br
Prints a mixed mode stack trace that has both Java and native C/C++ frames\&.
.TP
-h
.br
Prints a help message\&.
.TP
-help
.br
Prints a help message\&.
.SH KNOWN\ BUGS    
In mixed mode stack trace, the \f3-m\fR option does not work with the remote debug server\&.
.SH SEE\ ALSO    
.TP 0.2i    
\(bu
pstack(1)
.TP 0.2i    
\(bu
C++filt(1)
.TP 0.2i    
\(bu
jps(1)
.TP 0.2i    
\(bu
jsadebugd(1)
.RE
.br
'pl 8.5i
'bp