JSVC(1)

👑 JSVC 👑

so this is the manual page for jsvc, aka the little icon that launches your java daemon, from the Apache Commons Daemon project — it's JSVC(1), dated 2025-01-13, and yes bestie the version is Jsvc version 1.4.1, we love a stable era 💅

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✨ NAME ✨

jsvc — the application to launch java daemon 🚀 literally what it says on the tin.

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🎀 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]

okay so that's the whole vibe check — every flag gets its own little moment below 🌸

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🦋 DESCRIPTION 🦋

jsvc executes classfile that implements a Daemon interface. that's it, that's the whole job, and it does it slayfully. 💖

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🔥 OPTIONS 🔥

here's the part you actually came for, bestie. every single one, no skipping, periodt.

• -jvm JVM name — use a specific Java Virtual Machine. pick your fighter 🥊
• -client client JVM — use a client Java Virtual Machine.
• -server server JVM — use a server Java Virtual Machine. main character energy fr fr.
• -cp / -classpath directory and zip/jar files — set search path for service classes and resouces. (yes, "resouces", that's how the page spells it and I'm not fixing her, she's iconic 🙈)
• -java-home directory — set the path of your JDK or JRE installation (or set the JAVA_HOME environment variable). either way, she needs to know where home is 🏡
• -version — show the current Java environment version (to check correctness of -home and -jvm). Implies -nodetach.
• -help — show this help page. Implies -nodetach. we love a self-aware queen.
• -nodetach — don't detach from parent process and become a daemon.
• -debug — verbosely print debugging information. the group chat is gonna be LOUD 💀
• -check — only check 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 multiple of 10 (min=10). no cap, ten is the floor ⏳
• -restarts max restart count — maximum automatic restart count: -1=infinite (default), 0=none, 1..(INT_MAX-1)=fixed count. choose your destiny ✨
• -umask mask — sets the file mode creation mask.
• -user user — user used to run the daemon (defaults to current user). you, but officially 🫶
• -verbose[:class|gc|jni] — enable verbose output. pick a flavour: class, gc, or jni 🍓
• -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.

💀 ngl, careful with -outfile and -errfile — those defaults are /dev/null, so if you're like "where did my logs go"… they went to the void, bestie. use a real path, '&1'/'&2', or 'SYSLOG' if you want them to actually exist.

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🌈 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. give them their flowers 💐👑

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that's the whole page, bestie — sourced from Jsvc version 1.4.1, Apache Commons Daemon project, dated 2025-01-13. now go launch that daemon and ate, no crumbs 🧚💜