JINFO(1)

✨ NAME ✨

hii bestie! welcome to jinfo(1) from the JDK Commands manual. the whole assignment is: jinfo — generate Java configuration information for a specified Java process. that’s it, that’s the main character. 💖

🌸 SYNOPSIS 🌸

⚠️ Note: This command is experimental and unsupported.

jinfo [option] pid

• option — this represents the jinfo command-line options. peep Options for the jinfo Command. iykyk.
• pid — 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 ps command or, if the JVM processes are not running in a separate docker instance, the jps command. 🫶

🦋 DESCRIPTION 🦋

okay so jinfo prints Java configuration information for a specified Java process. the config info includes Java system properties and JVM command-line flags. yes bestie, both. 💅

if the specified process is running on a 64-bit JVM, then you might need to specify the -J-d64 option, for example:

jinfo -J-d64 -sysprops pid

⚠️ Warning: This command is unsupported and might not be available in future releases of the JDK. no cap, it’s giving “experimental era” energy.

On Windows Systems where dbgeng.dll is not present, the Debugging Tools for Windows must be installed to have these tools work. The PATH environment variable should contain the location of the jvm.dll that's used by the target process or the location from which the core dump file was produced. 🌸

💅 OPTIONS FOR THE JINFO COMMAND 💅

👀 Note: if none of the following options are used, both the command-line flags and the system property name-value pairs are printed. so yeah, default is a full lil info dump.

• -flag name — prints the name and value of the specified command-line flag. simple, iconic.
• -flag [+|-]name — enables or disables the specified Boolean command-line flag. the +/- is the vibe check.
• -flag name=value — sets the specified command-line flag to the specified value. assign it, bestie.
• -flags — prints command-line flags passed to the JVM. all the flags, periodt.
• -sysprops — prints Java system properties as name-value pairs. name and value, holding hands.
• -h or -help — prints a help message. when in doubt, ask for help, no shame. 🫶

💖 that’s the whole page, bestie! source/version: JDK 17, date: 2021, manual page: JINFO(1). mwah 💋✨