My application works good when running from Eclipse, but results from executable jar files are wrong. Am I making some mistakes during export?
Thanks
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I would like to know the LOCATION of the .exe in the JDK that opens .jar files. What I mean is this: Which .exe in C:\Program Files\Java\jdk*version number*\jre\ opens the .jar files, so that they can be opened using a double click? I used to be able to do that, when I newly installed the JDK+JRE. Unfortunately, Nokia PC Suite has made itself the default program for opening .jar files, so that it can install them on my Symbian. Which program do I 'Open With' to get back the old functionality? I already know how to do it from the command line, but this is easier.
There is no specific program to run jar files.
It is java.exe only with the -jar option
For eg.--> java -jar "foo.jar"
Right Click on a jar file and go to its properties. Change the default opening program to java.exe.
I hope that should work.
use javaw.exe if you don't want the command window.
This convention is widely followed by others like perl/python/ruby as well.
I know how frustrating this issue is. I looked all over the internet forums before I finally found the problem...Here is the answer below :
"The root cause for the problem above is, that a program has stolen the .jar association. If you have installed the Java Runtime Environment the first time, the file type called "jar" is assigned to javaw.exe correctly. "jar" is an abbreviation for "java archive" and javaw.exe is the correct program to execute a .jar. However, on Windows any program can steal a file type at any time even if it is already associated with a program. Many zip/unzip programs prefer to do this, because a jar is stored in the .zip format. If you doubleclick on a .jar, your pack program opens the file, rather than javaw runs the program, because your pack program ignores the meta information which are also stored in a .jar."
I have to run my jar file on a machine which does not have java installed. I went through this link:
http://www.java.net/node/655012
but I dont know how to do it. Can anybody tell me the steps that are required to be done to achieve this?
Thanks.
Wrap with launch4j to get an EXE file or deploy with java Webstart to get a clickable link on a web page (which prompt you to install Java)
To package an .air file into a native installer you have to use a batch program called adt.
The command on Windows will look something like this:
C:\Users\jisaacks>"C:\Program Files
(x86)\Adobe\Adobe Flash Builder
4\sdks\4.1.0\bin\adt" -package -target
native "D:\DEV\Flex4\Workspaces\AIR
Native Packager\AIRNIP\AIRNIP.exe"
"D:\DEV\Flex4\Workspaces\AIR Native
Packager\AIRNIP\AIRNIP.air"
I am trying to author a program in AIR that does this for you. Basically you drag/drop an .air file into it and it packages it into a native installer.
Well It gave me an Error #3219 error, which I looked up and found this:
AIR on Windows does not allow you to
run .bat files directly. Windows .bat
files are executed by the command
interpreter application (cmd.exe).
When you invoke a .bat file, this
command application can interpret
arguments passed to the command as
additional applications to launch. A
malicious injection of extra
characters in the argument string
could cause cmd.exe to execute a
harmful or insecure application. For
example, without proper data
validation, your AIR application may
call myBat.bat myArguments
c:/evil.exe. The command application
would launch the evil.exe application
in addition to running your batch
file.
If you call the start() method with a
.bat file, the NativeProcess object
throws an exception. The message
property of the Error object contains
the string "Error #3219: The
NativeProcess could not be started."
I am wondering if there is a possible work around or if I have hit a brick wall?
I believe you have hit a brick wall, at least with trying to do this in Adobe Air. Executing batch files can be a huge security hole, as your post claimed.
Are you trying to do this in Air for portability, or would you be able to use some other language?
I suggest trying to code this in python. Using the subprocesslibrary can help a lot.
http://docs.python.org/release/2.5.2/lib/module-subprocess.html
Serge Jespers (Adobe Evangelist) (http://www.webkitchen.be/) has done exactly this,
I think you should try to contact him for the details.
I helped him build a first solution by creating a windows executable which executed any bat file you specified, later he changed it by calling the java application (adt) directly which works fine as well.
He'll be very happy to help you.
UPDATE:
You can download the Package Assitant Pro right here: http://www.webkitchen.be/package-assistant-pro/
I'm having problems compiling applications with remote ant, something similar to this. However the flex compiler seems to have problems with this. When I run the same script on my local compiles everything without any problems but when I try the remote ant it fails without giving more information.
Things to look for on the remote machine:
The paths in the build file need to be valid (I'm pretty sure the script file you use to build the project on your computer, will not be good on the remote one because of a possible difference in paths)
You need the Flex SDK installed
You need Java JDK installed
You might also need some environment variables set correctly (like JAVA_HOME)
ANT binaries on the remote machine (but I assume you already have this, probably coming with the system you're using)
The sources to be compiled, obviously (I assume you already have these too, probably gotten by your system from a repository)
Also I find it hard to believe it would fail without any error. There should be at least a log file somewhere to give you an idea of what went wrong.
I have developed a Java swing application, then I have deployed it through a .jar package.
I run my application on my PC double-clicking over the .jar file and everything goes fine, everything goes fine from command line (dos prompt) too.
Here my problem.
I have tried to run my app on another PC:
same OS (Windows XP)
same JRE (1.6.0_U13)
but Oracle JInitiator 1.3.1.18 installed (this is the only difference with my PC)
The app works fine only from command line, but not from gui!
Double-clicking over the .jar file I get this error:
`Could not find the main class. program will exit!`
Can this error be due to some conflict between JRE and JInitiator?
Does anybody had the same trouble?
Thanks
edit:
executing .jar files from gui is associated to the "javaw" command
It is probably a conflict with JInit, which changes the association between jar files and the java command used to launch them.
See this thread.
Re-installed java and the problem has gone away.
A quick description might be - jinitiator installs as a fully implemented JRE with some additional features for cached downloads when dealing with applets.
As all the JRE installers I've seen lately do, regardless of if they are new or old, they replace several entries in the registry to become the active JRE. Whatever you installed last will be run unless you provide a full path to java.exe or change the registry to re point at a different JRE.
examine:
HKEY_CLASSES_ROOT\jarfile\shell\open\command
and see if the path to javaw.exe is correct. (or even included)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App
Paths\java.exe and javaw.exe and javaws.exe to check the path there also.
Have you checked your PATH/CLASSPATH/JAVA_PATH variables. It is possible that Jinitiator has installed the wrong version at the front.
Possibly check your manifest entries. See if the MANIFEST.MF in the jar contains the Main-Class attribute set correctly to the class that is supposed to be invoked, if not try setting it.