JSTACK(1) JDK Commands JSTACK(1)
NAME
jstack - print Java stack traces of Java threads for a specified Java
process
SYNOPSIS
Note: This command is experimental and unsupported.
jstack [options] pid
options
This represents the jstack command-line options. See Options
for the jstack Command.
pid 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 either the ps command or, if the JVM
processes are not running in a separate docker instance, the jps
command.
DESCRIPTION
The jstack command prints Java stack traces of Java threads for a spec-
ified Java process. For each Java frame, the full class name, method
name, byte code index (BCI), and line number, when available, are
printed. C++ mangled names aren't demangled. To demangle C++ names,
the output of this command can be piped to c++filt. When the specified
process is running on a 64-bit JVM, you might need to specify the -J-
d64 option, for example: jstack -J-d64 pid.
Note:
This command is unsupported and might not be available in future re-
leases of the JDK. In Windows Systems where the dbgeng.dll file isn't
present, the Debugging Tools for Windows must be installed so that
these tools work. The PATH environment variable needs to contain the
location of the jvm.dll that is used by the target process, or the lo-
cation from which the core dump file was produced.
OPTIONS FOR THE JSTACK COMMAND
-l The long listing option prints additional information about
locks.
-h or -help
Prints a help message.
JDK 21 2023 JSTACK(1)
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