JSVC(1)

✨ jsvc: the daemon-launching bestie ✨

okay so bestie, welcome to the JSVC(1) manual page 💅 this is the official little launcher for java daemons, and we’re gonna walk through it like a group chat. No cap.

🌸 NAME 🌸

jsvc — application to launch java daemon.

💖 SYNOPSIS 💖

jsvc [-jvm JVM name] [-client client JVM] [-server server JVM]
     [-classpath path] [-cp path] [-java-home directory] [-version]
     [-help] [-?] [-nodetach] [-debug] [-check] [-user user] [-wait
     waittime] [-restarts max restart count] [-umask mask] [-stop]
     [-verbose:class|gc|jni] [-outfile /full/path/to/file] [-errfile
     /full/path/to/file] [-pidfile /full/path/to/file]
     [-Dproperty=value] [-Xoption]

🦋 DESCRIPTION 🦋

jsvc executes the classfile that implements a Daemon interface. That’s the main character move. ✨

🎀 OPTIONS 🎀

• -jvm JVM name — use a specific Java Virtual Machine. iconic little picker.
• -client client JVM — use a client Java Virtual Machine.
• -server server JVM — use a server Java Virtual Machine.
• -cp/ -classpath directory and zip/jar files — set search path for service classes and resources.
• -java-home directory — set the path of your JDK or JRE installation (or set the JAVA_HOME environment variable).
• -version — show the current Java environment version (to check correctness of -home and -jvm; implies -nodetach).
• -help — show this help page (implies -nodetach) — and yes, -? is sitting right there in the synopsis too.
• -nodetach — don’t detach from the parent process and become a daemon.
• -debug — verbosely print debugging information.
• -check — only check the service (implies -nodetach).
• -stop — stop the service using the file given in the -pidfile option.
• -wait waittime — wait up to waittime seconds for the service to start; waittime should be a multiple of 10 (min=10).
• -restarts max restart count — maximum automatic restart count: -1=infinite (default), 0=none, 1..(INT_MAX-1)=fixed count.
• -umask mask — sets the file mode creation mask.
• -user user — user used to run the daemon (defaults to current user).
• -verbose[:class|gc|jni] — enable verbose output.
• -outfile /full/path/to/file — location for output from stdout (defaults to /dev/null). Use the value &2 to simulate 1>&2, or SYSLOG to send output to the system log.
• -errfile /full/path/to/file — location for output from stderr (defaults to /dev/null). Use the value &1 to simulate 2>&1, or SYSLOG to send output to the system log.
• -pidfile /full/path/to/file — location for output from the file containing the pid of jsvc (defaults to /var/run/jsvc.pid).
• -D<name>=<value> — set a Java system property.
• -X<option> — set Virtual Machine specific option.

👑 AUTHOR 👑

JSVC is part of the Apache Commons Daemon project. Authors are Jean-Frederic Clere, Remy Maucherat, Yoav Shapira, Bill Barker, Mladen Turk. JSVC is released under the Apache License Version 2.0.

and that’s the whole JSVC(1) manual page, bestie 🫶 it comes from the Apache Commons Daemon project, Jsvc version 1.6.1, dated 2026-06-03. periodt 💖