in src/native/unix/native/help.c [19:130]
void help(home_data *data)
{
int x;
printf("Usage: %s [-options] class [args...]\n", log_prog);
printf("\n");
printf("Where options include:\n");
printf("\n");
printf(" -help | --help | -?\n");
printf(" show this help page (implies -nodetach)\n");
printf(" -jvm <JVM name>\n");
printf(" use a specific Java Virtual Machine. Available JVMs:\n");
printf(" ");
for (x = 0; x < data->jnum; x++) {
printf(" '%s'", PRINT_NULL(data->jvms[x]->name));
}
printf("\n");
printf(" -client\n");
printf(" use a client Java Virtual Machine.\n");
printf(" -server\n");
printf(" use a server Java Virtual Machine.\n");
printf(" -cp | -classpath <directories and zip/jar files>\n");
printf(" set search path for service classes and resouces\n");
printf(" -java-home | -home <directory>\n");
printf(" set the path of your JDK or JRE installation (or set\n");
printf(" the JAVA_HOME environment variable)\n");
printf(" -version\n");
printf(" show the current Java environment version (to check\n");
printf(" correctness of -home and -jvm. Implies -nodetach)\n");
printf(" -showversion\n");
printf(" show the current Java environment version (to check\n");
printf(" correctness of -home and -jvm) and continue execution.\n");
printf(" -nodetach\n");
printf(" don't detach from parent process and become a daemon\n");
printf(" -debug\n");
printf(" verbosely print debugging information\n");
printf(" -check\n");
printf(" only check service (implies -nodetach)\n");
printf(" -user <user>\n");
printf(" user used to run the daemon (defaults to current user)\n");
printf(" -verbose[:class|gc|jni]\n");
printf(" enable verbose output\n");
printf(" -cwd </full/path>\n");
printf(" set working directory to given location (defaults to /)\n");
printf(" -outfile </full/path/to/file>\n");
printf(" Location for output from stdout (defaults to /dev/null)\n");
printf(" Use the value '&2' to simulate '1>&2'\n");
printf(" -errfile </full/path/to/file>\n");
printf(" Location for output from stderr (defaults to /dev/null)\n");
printf(" Use the value '&1' to simulate '2>&1'\n");
printf(" -pidfile </full/path/to/file>\n");
printf(" Location for output from the file containing the pid of jsvc\n");
printf(" (defaults to /var/run/jsvc.pid)\n");
printf(" -D<name>=<value>\n");
printf(" set a Java system property\n");
printf(" -X<option>\n");
printf(" set Virtual Machine specific option\n");
printf(" -ea[:<packagename>...|:<classname>]\n");
printf(" -enableassertions[:<packagename>...|:<classname>]\n");
printf(" enable assertions\n");
printf(" -da[:<packagename>...|:<classname>]\n");
printf(" -disableassertions[:<packagename>...|:<classname>]\n");
printf(" disable assertions\n");
printf(" -esa | -enablesystemassertions\n");
printf(" enable system assertions\n");
printf(" -dsa | -disablesystemassertions\n");
printf(" disable system assertions\n");
printf(" -agentlib:<libname>[=<options>]\n");
printf(" load native agent library <libname>, e.g. -agentlib:hprof\n");
printf(" -agentpath:<pathname>[=<options>]\n");
printf(" load native agent library by full pathname\n");
printf(" -javaagent:<jarpath>[=<options>]\n");
printf(" load Java programming language agent, see java.lang.instrument\n");
printf(" -procname <procname>\n");
printf(" use the specified process name\n");
printf(" -wait <waittime>\n");
printf(" wait waittime seconds for the service to start\n");
printf(" waittime should multiple of 10 (min=10)\n");
printf(" -restarts <maxrestarts>\n");
printf(" maximum automatic restarts (integer)\n");
printf(" -1=infinite (default), 0=none, 1..(INT_MAX-1)=fixed restart count\n");
printf(" -stop\n");
printf(" stop the service using the file given in the -pidfile option\n");
printf(" -keepstdin\n");
printf(" does not redirect stdin to /dev/null\n");
printf(" --add-modules=<module name>\n");
printf(" Java 9 --add-modules option. Passed as it is to JVM\n");
printf(" --module-path=<module path>\n");
printf(" Java 9 --module-path option. Passed as it is to JVM\n");
printf(" --upgrade-module-path=<module path>\n");
printf(" Java 9 --upgrade-module-path option. Passed as it is to JVM\n");
printf(" --add-reads=<module name>\n");
printf(" Java 9 --add-reads option. Passed as it is to JVM\n");
printf(" --add-exports=<module name>\n");
printf(" Java 9 --add-exports option. Passed as it is to JVM\n");
printf(" --add-opens=<module name>\n");
printf(" Java 9 --add-opens option. Passed as it is to JVM\n");
printf(" --limit-modules=<module name>\n");
printf(" Java 9 --limit-modules option. Passed as it is to JVM\n");
printf(" --patch-module=<module name>\n");
printf(" Java 9 --patch-module option. Passed as it is to JVM\n");
printf(" --illegal-access=<value>\n");
printf(" Java 9 --illegal-access option. Passed as it is to JVM.\n");
printf(" Refer java help for possible values.\n");
printf(" --enable-preview\n");
printf(" Java 11 --enable-preview option. Passed as it is to JVM\n");
printf("\njsvc (Apache Commons Daemon) " JSVC_VERSION_STRING "\n");
printf("Copyright (c) 1999-2023 Apache Software Foundation.\n");
printf("\n");
}