Convert Jar To Exe Launch4j

[Amelie Robertos]

Iam using launch4j for the first time and I think its a great tool. But I am facing a problem here. The whole purpose for me to convert a jar file to a .exe is to make it a windows executable without any java installed on the pc. The .exe that I have created launches an application which is meant for new pc without any java installed on it. But when I tried to launch the .exe on a pc without any java on it, it showed a dialog saying "Cannot find Java 1.5.0_12".

So, is there a way to create a .exe from a jar file that does not need Java pre-installed, also it seems if the .exe was compiled using a java version which is different than the one that is installed on a pc, I would still get the same error. Any help is appreciated.

By the very nature of Java, this is not possible. Since Java was designed to be 'compile once, run anywhere', it requires a virtual machine to run on. This virtual machine acts as an abstraction layer between the host OS and the Java program.

I believe that Launch4J allows defining a bundled Java VM, which means that you can ship the VM in a predefined location, almost like a library. This is outlined in the documentation - please look for more information there. However, this is generally not an acceptable solution for production software, as the JVM itself is quite large (multiple tens of megabytes, which is larger than even most large Java programs themselves). Most customers would not like to have to download this again, especially when most people already have a JVM installed.

The only other possible solution is to look at compiling the Java source code to native code (as opposed to byte code). Projects such as GCJ are working on this. Unfortunately, these seem to work only for a small subset of programs; in particular, the entire Swing framework was not supported the last time I looked (this may have changed since then, but I kind of doubt it). I have not succeeded in doing this, so I cannot say what the executable size, performance, or anything else are like.

Thanks for the input. yes it was helpful for my understanding. For now I have bundled JRE with the my application as I had to deliver a version. But it would be good to have feature to be able to create a .exe independent of bundled or system jre.

You can take this process a step further and convert the JAR to an executable .exe file. There are both paid-for and open source software to accomplish this. I tested using the program Launch4j. Launch4j is completely free and open source, but requires a little bit of knowledge and extra configuration.

The final thing that must be done is that a configuration file must be specified where the configuration parameters can either be set before hand in the xml file (can be done in any text editor) by you, or can be passed through the Ant task of the Launch4j program itself.

This article was co-authored by wikiHow staff writer, Travis Boylls. Travis Boylls is a Technology Writer and Editor for wikiHow. Travis has experience writing technology-related articles, providing software customer service, and in graphic design. He specializes in Windows, macOS, Android, iOS, and Linux platforms. He studied graphic design at Pikes Peak Community College.

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After having completed your project in Eclipse, your next goal will be to create a runnable version of your project. While Eclipse doesn't have the ability to export a Java project as an ".exe" file, you can export it as a runnable JAR (.jar) file, which works similar to an executable (.exe) file. You can then use a program called Launch4j to convert the JAR file to an executable file. This wikiHow teaches you how to transform a typical ".jar" file to an executable file!

Java is the best programming language available today that works across different platforms. I love Java and JavaFX. Once you finish writing your application, you may want to release it. The problem is, the native Java program executable, the good old .jar files always have a cup icon and sometimes a simple double click wont open them. The solution to this problem is to convert JARs to native executable, for windows .exe files.

In this article, I will explain how to make windows executable (.exe) from your Java / JavaFX program. Having exe file for windows has many advantages. We can set icons, properties, version information etc.

Launch4J is so far the best wrapper available for converting JAR files to windows executable. It is written in JAVA and is open source. Download latest version of Launch4J from Once You install and open it, you will get the following screen.

Once the entries are filled, you have to save the configuration. For saving, click on the Floppy DIsk icon from the menu. Your configuration entries will be saved as an xml file called config.xml. After saving click on the Setting like icon next to save button to start converting to executable file.

So, with maven project with jar packaging, I first thought of packaging an exe (with launch4j) and then registering it as a service. The problem with that is that the java program uses a scheduled executor, so it never exits, which makes starting it as a process impossible.

Good information. Tell me how to run Java program in command prompt on windows 8 OS. Recently, i upgraded to windows 8. Previously, its working. But, now it getting errors. show me, is there any special sequence of steps to windows 8 os.

I have to distribute a java application to non-computer people, and so need a simple clickable launch program as opposed to a startup script. Looking around it seems like launch4j or winrun4j might do this for windows. I will likely also need an installer builder like izpack or nsis.

Has anyone created a gradle plugin that might help with either of these window launchers? It seems like much of the information needed to create this is already in the build script, so it makes sense to build this from gradle. Likely a variation of the application plugin could create the input file that these tools need.

Launch4J is a powerful and reliable solution to convert your Java JAR files into Windows-native EXE executables. This handy tool offers a really convenient manner of wrapping JAR apps into EXE files, as it also offers access to all the options that one might possibly need when performing this transformation. For example, it lets you bundle a specific JRE version or make the app ask to search for one if needed. It also allows setting runtime options, environment variables, an app icon, a splash screen, the Java download page, and many more. Furthermore, dynamic classpath resolution using environment variables and wildcards is also supported, as well as digital signing of the executable with sign4. Launch4J is actually impressively powerful and comprehensive, providing a lot of cool features that would take many pages to enumerate. Yet, it's very small, neat, lightweight, and best of all, open source.

I also like Launch4J because it supports GUI and console apps, as well as Windows application manifests. Moreover, it can be used to create launchers for JARs and class files without wrapping. Build integration through an Ant task and a Maven Plugin is also available.

GigaSpaces infrastructure can be started using a GigaSpaces Grid Service Agent as explained in GSA page. When using Windows based OS for running GigaSpaces infrastructure, users want to convert GSA Grid Service Agent.This is a process manager that can spawn and manage Service Grid processes (Operating System level processes) such as The Grid Service Manager, The Grid Service Container, and The Lookup Service. Typically, the GSA is started with the hosting machine's startup. Using the agent, you can bootstrap the entire cluster very easily, and start and stop additional GSCs, GSMs and lookup services at will. into a windows service for following common reasons,

If your requirement is only item 1 and/or 2 above, you can use psexec (SysInternals/Microsoft tool, -us/sysinternals/bb897553). When you start the GSA using psexec from a remote machine in the network the process does not open command windows and does not get terminated on a logoff of the user.

Some users are not comfortable using the .NET version of the product and want to use only Java version of the product. In such cases, there are many software that can help in converting a Java Application (like GigaSpaces) to a Windows Service.

Modify the wrapper.config file per your environment. For downloading wrapper.jar go to Java Service Wrapper, download wrapper-windows-xxx-xx-x.x.xx-pro.zip which fits to your platform, unzip it and copy wrapper-windows-xxx-xx-x.x.xx-pro\lib\wrapper.jar to your myApp\lib dir (or to any dir on your file system and point to it in your classpath)

This example starts 2 GSC Grid Service Container.This provides an isolated runtime for one (or more) processing unit (PU) instance and exposes its state to the GSM.'s, GSM Grid Service Manager.This is is a service grid component that manages a set of Grid Service Containers (GSCs). A GSM has an API for deploying/undeploying Processing Units. When a GSM is instructed to deploy a Processing Unit, it finds an appropriate, available GSC and tells that GSC to run an instance of that Processing Unit. It then continuously monitors that Processing Unit instance to verify that it is alive, and that the SLA is not breached. and a LUS Lookup Service.This service provides a mechanism for services to discover each other. Each service can query the lookup service for other services, and register itself in the lookup service so other services may find it.. Modify these settings as needed.

Here is a tool to compute your tax in all 50 states. It includes income tax, property tax, sales tax, and gas tax. This was one of my first jQuery projects, and I'm proud of the sortable table and the URL hashtags that let you bookmark your results.

Launch4j by Grzegorz Kowal wraps a jar file in a Windows executable to ease deployment of Java desktop applications. The Launch4j Maven Plugin lets you run Launch4j from Maven, optionally inferring things like classpath from your dependencies. Read more.

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