Name¶

jstack - Stack Trace

SYNOPSIS¶

jstack [ option ] pid
jstack [ option ] executable core
jstack [ option ] [server-id@]remote-hostname-or-IP

PARAMETERS¶

Options are mutually exclusive. Option, if used, should follow immediately after the command name. See OPTIONS.

DESCRIPTION¶

jstack 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¶

SEE ALSO¶

KNOWN BUGS¶

Mixed mode stack trace, the -m option, does not work with the remote debug server.