jstack(1)jstack(1)Namejstack - Stack Trace
SYNOPSISjstack [ option ] pid
jstack [ option ] executable core
jstack [ option ] [server-id@]remote-hostname-or-IP
PARAMETERS
Options are mutually exclusive. Option, if used, should follow immedi‐
ately after the command name. See OPTIONS.
pid
process id for which the stack trace is to be printed. The
process must be a Java process. To get a list of Java processes
running on a machine, jps(1) may be used.
executable
Java executable from which the core dump was produced.
core
core file for which the stack trace is to be printed.
remote-hostname-or-IP
remote debug server's (see jsadebugd(1)) hostname or IP address.
server-id
optional unique id, if multiple debug servers are running on the
same remote host.
DESCRIPTIONjstack prints Java stack traces of Java threads for a given Java
process or core file or a remote debug server. For each Java frame, the
full class name, method name, 'bci' (byte code index) and line number,
if available, are printed. With the -m option, jstack prints both Java
and native frames of all threads along with the 'pc' (program counter).
For each native frame, the closest native symbol to 'pc', if available,
is printed. C++ mangled names are not demangled. To demangle C++ names,
the output of this command may be piped to c++filt. If the given
process is running on a 64-bit VM, you may need to specify the -J-d64
option, e.g.:
jstack-J-d64 -m pid
NOTE - This utility is unsupported and may or may not be available in
future versions of the JDK. In Windows Systems where dbgeng.dll is not
present, 'Debugging Tools For Windows' needs to be installed to have
these tools working. Also, PATH environment variable should contain the
location of jvm.dll used by the target process or the location from
which the Crash Dump file was produced.
For example, set PATH=<jdk>\jre\bin\client;%PATH%
OPTIONS-F Force a stack dump when 'jstack [-l] pid' does not respond.
-l Long listing. Prints additional information about locks such as
list of owned java.util.concurrent ownable synchronizers @
http://docs.oracle.com/javase/7/docs/api/java/util/concur‐
rent/locks/AbstractOwnableSynchronizer.html.
-m prints mixed mode (both Java and native C/C++ frames) stack
trace.
-h prints a help message.
-help
prints a help message
SEE ALSO
o pstack(1)
o c++filt(1)
o jps(1)
o jsadebugd(1)KNOWN BUGS
Mixed mode stack trace, the -m option, does not work with the remote
debug server.
16 Mar 2012 jstack(1)