83 lines
2.5 KiB
Groff
Executable File
83 lines
2.5 KiB
Groff
Executable File
.\" Automatically generated by Pandoc 2.19.2
|
|
.\"
|
|
.\" Define V font for inline verbatim, using C font in formats
|
|
.\" that render this, and otherwise B font.
|
|
.ie "\f[CB]x\f[R]"x" \{\
|
|
. ftr V B
|
|
. ftr VI BI
|
|
. ftr VB B
|
|
. ftr VBI BI
|
|
.\}
|
|
.el \{\
|
|
. ftr V CR
|
|
. ftr VI CI
|
|
. ftr VB CB
|
|
. ftr VBI CBI
|
|
.\}
|
|
.TH "JINFO" "1" "2025" "JDK 24.0.2" "JDK Commands"
|
|
.hy
|
|
.SH NAME
|
|
.PP
|
|
jinfo - generate Java configuration information for a specified Java
|
|
process
|
|
.SH SYNOPSIS
|
|
.PP
|
|
\f[B]Note:\f[R] This command is experimental and unsupported.
|
|
.PP
|
|
\f[V]jinfo\f[R] [\f[I]option\f[R]] \f[I]pid\f[R]
|
|
.TP
|
|
\f[I]option\f[R]
|
|
This represents the \f[V]jinfo\f[R] command-line options.
|
|
See \f[B]Options for the jinfo Command\f[R].
|
|
.TP
|
|
\f[I]pid\f[R]
|
|
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 either the
|
|
\f[V]ps\f[R] command or, if the JVM processes are not running in a
|
|
separate docker instance, the \f[B]jps\f[R] command.
|
|
.SH DESCRIPTION
|
|
.PP
|
|
The \f[V]jinfo\f[R] command prints Java configuration information for a
|
|
specified Java process.
|
|
The configuration information includes Java system properties and JVM
|
|
command-line flags.
|
|
If the specified process is running on a 64-bit JVM, then you might need
|
|
to specify the \f[V]-J-d64\f[R] option, for example:
|
|
.RS
|
|
.PP
|
|
\f[V]jinfo -J-d64 -sysprops\f[R] \f[I]pid\f[R]
|
|
.RE
|
|
.PP
|
|
This command is unsupported and might not be available in future
|
|
releases of the JDK.
|
|
In Windows Systems where \f[V]dbgeng.dll\f[R] is not present, the
|
|
Debugging Tools for Windows must be installed to have these tools work.
|
|
The \f[V]PATH\f[R] environment variable should contain the location of
|
|
the \f[V]jvm.dll\f[R] that\[aq]s used by the target process or the
|
|
location from which the core dump file was produced.
|
|
.SH OPTIONS FOR THE JINFO COMMAND
|
|
.PP
|
|
\f[B]Note:\f[R]
|
|
.PP
|
|
If none of the following options are used, both the command-line flags
|
|
and the system property name-value pairs are printed.
|
|
.TP
|
|
\f[V]-flag\f[R] \f[I]name\f[R]
|
|
Prints the name and value of the specified command-line flag.
|
|
.TP
|
|
\f[V]-flag\f[R] [\f[V]+\f[R]|\f[V]-\f[R]]\f[I]name\f[R]
|
|
Enables or disables the specified Boolean command-line flag.
|
|
.TP
|
|
\f[V]-flag\f[R] \f[I]name\f[R]\f[V]=\f[R]\f[I]value\f[R]
|
|
Sets the specified command-line flag to the specified value.
|
|
.TP
|
|
\f[V]-flags\f[R]
|
|
Prints command-line flags passed to the JVM.
|
|
.TP
|
|
\f[V]-sysprops\f[R]
|
|
Prints Java system properties as name-value pairs.
|
|
.TP
|
|
\f[V]-h\f[R] or \f[V]-help\f[R]
|
|
Prints a help message.
|