Technical Support

Usage

Jar2Exe can run in Wizard mode and Command line mode.

Get detailed usage of Wizard mode, command line mode and generated binary files.

Configurations

Parameters can be configured to generated binary executive, such as Java VM parameters, system properties etc.

This is the descriptions of configurations, including overview introductions and detailed syntax.

Integrate API

To integrate with generated exe is not necessary. But if you want to let some of the enhanced functions to work, you need to do a little of integration. Every api to integrate is very simple.

This is the introduction and usages of API.

Demos

You can learn to use Jar2Exe by referring to the demo programs.

Solution advices

Typical usage of Jar2Exe with detailed steps and live demos in practice.

Such as console tool, desktop window, background service, webapp etc.

 

Services

Activate

After purchased, you need to activate Jar2Exe before you use Jar2Exe to generate exe files for redistributing. Activated Jar2Exe will authorize generated exe to run as a product.

This is to tell you how to activate.

FAQ

Typical questions asked by Jar2Exe users.

 

Comments

Exe Not Work

1 ) I am Obuscate my .jar file
 
2) I used .dll lib which on dirctory and i am using JNA.jar
 
Generated .exe file not work
 
 

Dear,

Dear,
  1. After obuscated, please make sure the obuscated jar file still runs at command line by "java -cp yourjar.jar xxx.xxx" or "java -jar yourjar.jar".
  2. The dll should be along with the exe file in one same directory.

Contact me (support@jar2exe.com) if your problem not resolved, or we can discuss on IM (Skype or GTalk)

 

ClassNotFoundException

Hi,

A few weaks ago i have installed trails version of jar2exe v2.0.6, for a few weaks i worked fine, 

but today it display an ClassNotFoundException, and it says that can't find class abc (as an example) this was fine, but now not working.

actually i am instanctiating the class using Class.forName("className").

trails time is not finished yet, 

the configuration is as below:

min jre: 1.7

app type : Windows GUI application

class file encryption: Encrypt and Hide class files

I dont know why it worked till yesterday, and now it does not work.

A special ClassLoader is used to load protected classes

Dear Hassany,

Thank you for your message.

If a class is 'encrypt and hide' by Jar2Exe, it is loaded by a special native ClassLoader. A class which is not 'encrypt and hide' cannot load a 'encrypted' class. That is to say, if you call Class.forName("className") within a un-encrypted class for a protected class, it may fail.

The solution is to use "Thread .currentThread() .getContextClassLoader()" to load the class instead. http://www.jar2exe.com/createdexe/integrate/protect

A program with a ClassLoader is usually a bit complex and abstract. So there may be somewhere else that cause the failure. Please contact me if your problem not resolved or you have any other ideas.

Thanks a lot.

Sswater Shi

Problem solved

Thanks for your comment, I have reviewed my build mechanism, i found the problem with the ant builds, the ant build task did not compile the files, :) i do not know why; i worked perfect till my previous builds, and without changing any configuration or ... i skipped compiling the source files,

However i findout that the problem is not with the jar2exe, and that sounds good to me,

Thanks for you greate product

I Can't Activate the software

Dear,

I bought this software jar2exe in Jun 26, 2012 22:35. I Lost my HD and I needed reinstall. When I fill the Register User and Register Key on softwate to activate it, I receive the massage: ACTIVATE FAILED. Tour Trial period has 30 days left.

Please, I need your help to resolv this question.

Thank's 

Edison Rangel

The main startup class could not be found

I get the following error when i run the *.exe file only on Windows XP:  The main startup class could not be found

I don't use any libraries and the jar file contains only one main class which produces a text file.

I create the *.exe file with a licenced version (not trial) with Windows 7.

On Windows 7 runs without any problems. However on windows XP shows the above message.

I tried to create it by checking the XP manifest at the last screen of the wizard but it doesn't run also.

I tried not to encrypt and hide files and classes but i had no success either.

Is there anything else i can try?

java is backwards compatible....

since java is backwards compatible why i should specificaly define the target jre since it should run in any older version? furthermore, the jar file runs fine both on win7 and XP. only the exe file doesn't run on xp.

Is there any other exceptions

Is there any other exceptions shown when "The main startup class could not be found"?

The target of class is one of the possible reasons I thought. The java is not backwards compatible if you did not use a "-target" parameter when compile, please refer to http://docs.oracle.com/javase/1.5.0/docs/tooldocs/solaris/javac.html#crosscomp-options

If the target of the class is not the reason, if you would like to, you can send me your exe file or contact me directly through email or skype: http://www.jar2exe.com/about .

JavaFX

I tested out your software to wrap and protect my java application. I really liked it and the application runs perfect. Except or one thing: the application is a JavaFX application, so when i run it, it does not load the css files. Even when u uncheck the protection option.

Any suggestions?

Thanks in advance,

Onur Tabaki

it can be cracked

I downloaded the free version，and publish a beta version，I use hide and encryp function，but it can be cracked，some people already publish they cracked result。。。so said

Please refer to http://www.jar2exe.com/solutions/safety

I'm so sorry to hear that your encrypted program is hacked. For professional hackers, we are difficult to get it 100% safe, even for Windows or iOS, so what we can do is to let is more and more difficult to hack.

Jar2Exe does 2 things to protect java program (1) confusing the filename within jar file, (2) encrypt jar file.

Besides the protection of Jar2Exe, there are some other advices on doing more steps to protect java program: http://www.jar2exe.com/solutions/safety , that is to do an (3) abfuscation and (4) exe file encryption.

2 Issues with Jar2Exe on our project

I purchased Jar2exe today to package my Jar file into a executable. I am currently experiencing two issues:

1) When I run the exe the ‘look and feel’ of the Java application have been removed. It reverts from the back look and feel to a grey default look - yet if I run the JAR it works correctly

2) The exe loads the application. Then when I close the application it reopens. It only reopens once. Once again, testing the input JAR this does not occur

I would be grateful for any help with this urgently from admin or anyone who can help :-) , Thanks

Memory options for service

Hi,

I am using Jar2Exe successfully to run my Java application as a Windows service. Would I now need to do is to increase the working memory for the Java application, like. e.g. adding  "-Xmx1024m -Xms1024m to a Java command line.

Is it possible to do the same with the generated Windows service? If so, where is the right place to add the options?

 

Thank you for your help

- Walter

Hi,

Hi,

I have a webapp which is built without a web.xml. It uses spring's Java Config to configure most of the configurations that would have been done via web.xml in the past.

I am trying to create a windows gui app out of it. I am able to package it all with embedded tomcat and create an exe. On executing the exe, the tomcat starts successfully, but the application is not available. THis is a working app and have been tested on a regulatr tomcat. So the packaging is all correct.

Do we have to do something special for a spring we app without a web.xml?

Thanks,

Jagdish

Include .dll files on generated .exe

Hi,

I would like to know if it there is some methods to include .dll files which do not appear in JRE/bin folder (ex. rxtxSerial.dll). I tried to include a .zip which contains the .dll file but using NetBeans (the IDE which help me to develop my Java application) but my .exe does not work without rxtxSerial.dll put on the same folder. Can I resolve this problem with J2E? Or with NetBeans?

Thanks in advance.

NG

WinService not installing

Hi.

Im trying to run the command:

myservice.exe /install

The following message is displayed in the prompt after this command line:

"Service 'myservice' install failed, errors occurs.

A log file is created with the name: myservice.exe.stderr.log with 0k size. When I open this file and look inside for the error message, I notice that file is empty.

The activation of this product was done yesterday.

The funny thing is: in trial version of jar2exe, no errors occured.

Any help?

The generated EXE is now officially a virus (??)

So, I have used this for a long time, but right today, my friend and I suddenly got in problems with 3 DIFFERENT ANTIVIRUSES! I guess it couldn't really be Java doing this?

F Secure - Best in test says dad :P - Says this: https://www.f-secure.com/v-descs/other_w32_generic.shtml

My software is not known for being famous, but it's community is getting larger and larger.
Please help me as soon as possible!

File Version Bug?

On the latest version, I set the ‘File Version’ and ‘Product Version’ in the ‘Product Info’ tab, once I click OK, these values reset to defaults (1.0.0.1). Is this a bug, or am I doing something wrong?

Thanks, Liam

Splash Screen

Hi,

I setup everything and it works fine, except the splashscreen doesn't close. I tried it with both jpg and gif but it just stays on the screen. Is it possible to use the custome congif internal to close it after 3 seconds or something similar? If not how can I integrate it into my Java project as the documentation on the site is quite old and I wasn't able to do it.

Thank you,

"Modify" the final *.exe

Hi, how are you? I'm trying your product and it's perfect but, I have a question.

I want to pack my final exe generated with MoleBox (to improve security) and it's impossible because exe modifications is prohibited.

Is there any way to do it?

Thanks

EXE crashing when using Hide or Encrypt option

I am creating a java APP and uging jar2exe to distribuite it as a exe file.

I have the following issue: when using the "Hide class files" or "Encrypt and hide class files" option my application craches when opening a certain JFrame for the second time. In other words:

1. I open my application: OK

2. I open a certain form to input some data: OK

3. I reopen the same form to input other data: crashes

Using other forms it is OK, I do not know what to look for.

If I use the original .jar or I do not use Hide or Encrypt option it works fine. 

Here is the generated error file:

https://dl.dropboxusercontent.com/u/42217759/hs_err_pid9988.log

What can I do?

 

Thanks

Carlo

 

Parameter /checksum:false doesn't work?

May you check command line parameter: /checksum:false 

It didn't work for me. But, it works well if I use GUI in j2ewiz.exe

I used available on your site version 2.1.7.1096

 

This is very important for me, because I would like to use code signing for my EXE-file. 

answer

Yes. You are right. I just used jar2exe in a trial mode. (another window account was involved) 

Now it works fine! 

 

 

 

Please `chmod +x yourbinaryfile` before run

Because the windows filesystem could not express the "execute" privilege, after you copy your generated binary file to Linux and Mac, please `chmod +x yourbinaryfile` first.

In the future release I'm thinking to generated a ".zip" file instead to contain the "execute" privilege.

Activación de la licencia

Hola buenas tardes, alguien que me pueda colaborar no he podido realizar la activacion de la licencia comprada la orden de compra es 

 

3ESQFCA-A4UHC6
 

De antemano gracias por la atencion prestada y por una pronta solucion

 

Not run app after signing "Code signing certificate"

Currently, I use trial version, and after I sign the exe file using "Code signing certificate", the app don't run and show error message: "the exe cannot be modified after it generated". Please help me to solve this issue.

If I purchase "Personal Base License", can this issue be resolved?

Thanks,

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