MAC OS - Terminal command to set JAR program to run at startup? - java

This is where MAC OS stores its start-up items,
/Library/LaunchAgents
How to set a JAR program from Terminal to run at startup? Also how to remove existing program from startup?
I need to use either Terminal or any other script code to add JAR program to load at startup.

Write a bash script that runs your JAR.
#!/bin/bash
java -jar /path/to/my/jar
Create a .plist entry in /Library/LaunchAgents as shown here

Related

how to start a java application system-independent at Windows startup

I want to automatically run a Java application under Windows at startup time, but not depending on a specical Windows or a special JRE-version.
Generally, a good way to run programs at Windows login time would be to add a registry entry under
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
But it seems as if the system PATH is not evaluated when Windows tries to run the programs listed in the registry's RUN section.
So these both entries do work:
"C:\Program Files\Java\jdk1.8.0_111\bin\javaw" -jar c:\path\to\java.jar
"C:\ProgramData\Oracle\java\javapath\javaw" -jar c:\path\to\java.jar
But this one doesn't come up:
javaw -jar c:\path\to\java.jar
Now, the latter works when manually entered in a console window because there the required PATH exists and is evaluated:
PATH=....;C:\ProgramData\Oracle\Java\javapath;....
Now, I want to have the registry entry added from an automated installer programm and I would like to have it formed "windows-system-independent" (from Vista up to Win 10, and furthermore not depending from the version of the installed JRE). So I do not know a general path to the JRE and therefore I cannot add a specific RUN-command to the registry.
Does anyone know how to add JRE-calls system-independent correctly to the registry's RUN-section?
I've already tried with a command-file, e.g. "startup.cmd" with content java -jar file.jar there, have added a call of this file to the registry, and yes that worked, java was found, the application was started, but when using this method I have an annoying black command terminal window staying open all the time while the java app is running.
Thanx,
Tombo
Change your startup.cmd, from
java -jar file.jar
to
start java -jar file.jar
This will launch the java.exe in a new process an let your batch executor terminate.

How to detect java installation from a batch program

I want to run a jar file on a client machine using batch script. But the problem is its not clear where is the java installed. There are 3-4 fixed paths where java.exe can exist.
How to write a batch script to find where java is installed on any of those predetermined locations and then run a command to execute a jar file.
Assume java is not set in the environment variables and no access to windows registry.
On windows :
c:\> for %i in (java.exe) do #echo. %~$PATH:i
On linux:
$ which java

How to excute a Java program on a Unix server?

I have to create a Unix shell script to execute Java code which takes a input file and creates an output file. This is how I do it on Windows:
C:\Work\MCDExcelParserJE\bin>java -classpath .\;.\jxl.jar medicaid.Test PROCESS
How can I run this on Unix?
First thing is that you need to use colon(:) instead of semi-colon(;) in your classapth:
java -classpath .\;.\jxl.jar medicaid.Test PROCESS
should be updated to
java -classpath ./:./jxl.jar medicaid.Test PROCESS
Make sure you have jdk/bin directory is added to path in order to run the java commands.

java virtual machine launcher error: unable to access jarfile

I have downloaded a program to run on windows XP.
According to the instructions, opening the .bat file that includes the command that calls the .jar file would be enough.
Yet the program does not open.
In a friend's computer the program does open.
I have set correctly the java-related environment variables. Java works fine. I have associated .jar files with java sdk.
When calling the command
javaw -Xms128M -Xmx512M -jar filename.jar from cmd
I get a java virtual machine launcher
error: unable to access jarfile
Then I called the same command while being on the folder where the jar is, I have no error, but still the gui of the program does not open.
Any ideas?
On windows support the suggest unistalling and manually re-installing java, but java works fine in any other app.
Try some of the following:
Run directly from the .exe, so "C:...\jre\javaw.exe" -jar
Try java -jar instead of javaw -jar.
Try moving the file. It could be in a permissions sensitive directory.
Also, if the program was compiled using a 64-bit JDK, it might require a 64-bit JRE to run. In that case, you'd need to have a 64-bit OS/JRE to run it.

adding a java application to system configuration start up menu

I am creating a desktop application. I know how to add program to system tray, that consists of a continuous system process, I need instructions on how to add java code to system configuration startup menu. Like antivirus program which automatically executes on starting the system. would be of great help with example code
Write a batch file(.bat) which executes you java program. Add this batch file into the registry in such a way that it will be executed during system startup.
simply write following into your batch file
java filename
In linux you will hv to create a .sh script(executable) that will execute your java program.
put .sh in /etc/rc0.d using following commands
cp name.sh /etc/rc0.d/
chmod +x /etc/rc0.d/name.sh

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