NetBeans JAR file

I wrote a program using the NetBeans IDE, the program runs fine with no errors with tested in the actual environment. However when I build the project and create a JAR file I am unable to run it. Double-clicking the file brings up this error:
Java Virtual Machine Launcher
Could not find the main class. Program will now exist.
Also opening the same file using JAVA 2 Platform Standard Edition binary causes no errors.
If it helps, here is the manifest file contained with the JAR.
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.6.2
Created-By: 1.5.0_02-b09 (Sun Microsystems Inc.)
Main-Class: ecosystem.GameManager
X-COMMENT: Main-Class will be added automatically by build

i've had that same problem before, it's either your build settings in netbeans are wrong or you may try to build your program outside of netbeans using ant. (i did this)

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ANT how to include NetBeans Jar files in my script of ANT ??

ANT how to include NetBeans Jar files in my script of ANT ??

I mean the library say swing layout ...
which is SwingLayOuts1.0.jar ...
in side this there is folder org.jDesktop....
I want this folder in my jar file ...
also ....
My question ... i know the path of the jar file of NetBeans .... i can copy that ...dirctly ... but if m using Netbeans editor ... can i give NetBeans class to my jar command for ANT...........

Error with NetBeans JAR file

I wrote a program using the NetBeans IDE, the program runs fine with no errors with tested in the actual environment. However when I build the project and create a JAR file I am unable to run it. Double-clicking the file brings up this error:
Java Virtual Machine Launcher
Could not find the main class. Program will now exist.
Also opening the same file using JAVA 2 Platform Standard Edition binary causes no errors.
If it helps, here is the manifest file contained with the JAR.
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.6.2
Created-By: 1.5.0_02-b09 (Sun Microsystems Inc.)
Main-Class: ecosystem.GameManager
X-COMMENT: Main-Class will be added automatically by build

It should run if you issue the command
java -classpath <absolutePathToJar\jarName>.jar ecosystem.GameMaster
When you run using the java -jar command or by cl8icking on the jar in Windows, the only source for classpath information is from within the jar. You need to add the Class-Path: attribute to the manifest file.

Application working under NetBeans but not as a *.jar file

Hello,
recently I found a little problem. I wrote application that shows all available ports in my computer. When I am running this applications under NetBeans it works with no problem - finds all available ports. Then I am building it to the *.jar file. Application is working with no problem but command:
Enumeration PortIds = CommPortIdentifier.getPortIdentifiers();
is not returning any identifiers - PortIds is empty.
Anyone knows a solution for this type of problems? Thanks

Hi Venkatesh,
Few questions.
1. What is your JDeveloper version? (Always better to post your JDev version along with the question, which would help us to help you better).
2. Did you try adding webserviceclient.jar to the classpath? (Search in your JDev installation directory for the location of this jar file).
-Arun

.jar file is not working properly :developed in NETBEANS

Hi Gurus,
i am using NETBEANS IDE 7.2.
i am developing a project that interacts with databases 10g and COM ports of machine , these all processes are performed by .bat file which i am trying to run from jFramform , code works perfectly .bat file is also called perfectly when i run the project using F6 from the NETBEANS, for testing i placed some dialogue boxes on the form to test it ,
but when i run executable .jar file , form run successfully and dialogue box works perfectly but .bat file is not called by executable .jar file.
this is how i call the .bat file...
String filePath = "D:/pms/Libraries/portlib.bat";
        try {
          Process p = Runtime.getRuntime().exec(filePath);
        } catch (Exception e) {
            e.printStackTrace();
and below is the contents of portlib.bat file
java -jar "D:\SMS\SMS\dist\SMS.jar"
you must probably ask why i am calling a .jar file using .bat file .
reason is that this .jar project sends message using GSM mobile , System.exit(); is compulsory to complete a job and then do the next one ,
if i use the same file to execute this job it makes exit to entire the application (hope you can understand my logic).
that's why i use extra .jar file in .bat file , when single job is completed .bat exits itself and new command is given.
Problem is that code is working perfectly in NETBEANS when i run the project but when i run .jar then .bat file is not working ,
thanks.

Thanks Sir ,
You need to first test an example that works like the one in the article.
There are plenty of other examples on the web - find one you like:
http://javapapers.com/core-java/os-processes-using-java-processbuilder/
I tried this one.
try {
            ProcessBuilder dirProcess = new ProcessBuilder("D:/SMS/SMS/Send_message.bat");
             File commands = new File("D:/SMS/SMS/Send_message.bat");
             File dirOut = new File("C:/process/out.txt");
             File dirErr = new File("C:/process/err.txt");
           dirProcess.redirectInput(commands);
             dirProcess.redirectOutput(dirOut);
           dirProcess.redirectError(dirErr);
             dirProcess.start();
        } catch (IOException ex) {
            Logger.getLogger(mainform.class.getName()).log(Level.SEVERE, null, ex);
as instructed in the article i compiled both the projects at same version or sources and libraries which is 1.7
here is my version details
C:\>javac -version
javac 1.7.0_07
C:\>java -version
java version "1.7.0_07"
Java(TM) SE Runtime Environment (build 1.7.0_07-b11)
Java HotSpot(TM) Client VM (build 23.3-b01, mixed mode, sharing)
inside the NETBEANS IDE c:\process\err.txt remains empty and code works perfectly , but when I run executable .jar file( by double clicking on that file in dist directry) then c:\process\err.txt becomes full with this error text and there is no response from calling D:\SMS\SMS\send_message.bat
here is the error text
java.lang.UnsupportedClassVersionError: sms/SMSMAIN (Unsupported major.minor version 51.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Exception in thread "main"
here is /SMS/SMS
unknown source ?

Can Netbeans put a jar file In a jar file?

I just went through the process of getting Eclipse to create a jar file that would execute from a command prompt using a plugin called fatjar :
http://fjep.sourceforge.net/
Details from other thread :http://forum.java.sun.com/thread.jspa?threadID=5219638&tstart=0
I really would like to use netbeans but i now have the exact same problem trying to make a jar file in netbeans 5.5.1
I am using a package from icaste.com It has a
.dll file to put in the windows directory
JCommSerial_3_0.jar file that contains all the classes
I can compile and run a file in the IDE and it works fine
The Jar file does not contain the classes so i get errors when running from command line.
Here is the layout of my screen and result of run command in IDE
http://www.acousticlights.com/netbeans.png
What do I need to try?

georgemc wrote:
Why is everyone so obsessed with doing this? The gains are minimal and the problems numerousBecause we are new and don't understand how the java VM actually runs code and the error messages sent by the java machine are cryptic.
My first attempt at using an external jar in a java program lead me to believe that all of the code for a java program would be in a jar file including external jar files, after all the JDK standard library has tons of jars in it so I assumed the external jar file would be linked (as most other programming compiler/linkers I have worked with in my top down programming life).
I find out the answer is so simple that the external jar file could not be found by the VM running my jar file. Like I said, if the VM would have just gave me an error that it could not find a file on a specific directory i never would have perused the idea of jar in a jar (fatjar plugin for Eclipse for example)
Really this is like getting into a race car and not knowing at what RPM to shift gears, sure you can press the pedal and make it go but if you don't understand how it works under the hood you are going to blow the engine if you keep it in first gear.
I have read many posts on these errors, the reason is the error message is just not very descriptive of the original problem. If I try and open a database called xyz.dbf that has one field defined as lastname, in C for example, I would not give the error message "Lastname could not be found) when indeed the lastname could not be found but the reason it could not be found was because the database xyz.dbf could not be found. Further , adding to the error message that the system is looking for xyz.dbf on drive X- subdirectory -mydatabases would complete the error message and allow the user to fix the error. Just what is a non java programmer that is using my java program suppose to do with an Ecception Error in (main) bla bla bla... I know now I need to check for library files myself within my own java programs and give a better error message to the user before the java VM sends out it's cryptic message.
Edited by: metron9 on Sep 25, 2007 11:00 AM

Program run in Netbeans but NOT running as jar file

Dear all ,
i hope any help in this problem.
i am writing program to access parallel port i put next files :
1. [ comm.jar + javax.comm.properties ] in
[ C:\Program Files\Java\jdk1.6.0_18\lib ] and [ C:\Program Files\Java\jdk1.6.0_18\jre\lib ]
2. [ win32com.dll ] in [ C:\WINDOWS\system32 ]
when i run application in NetBeans IDE 6.8 work fine and every think is ok
BUT when i produce jar file , generated jar file does not work [GUI appear but can not get ports on PC]
- I try to set Environment Variable as next :
CLASSPATH = .;C:\Program Files\Java\jdk1.6.0_18\lib\comm.jar
also does not work
any tip please ?
Thanks in advance
Nabil

First of all, leave the lib and jre/lib directories of the JRE alone. Never ever touch them again. Remove any jars you have put there yourself, or better yet completely remove and reinstall the JRE to make sure you put it back in a correct state.
After you do that, learn how to properly work with the classpath in both the IDE and the command line.
Netbeans: you define the classpath by adding jars to the project (right click on the libraries node in the project tree to get the appropriate options).
Command line: this depends on if you run a single class, or you invoke an executable jar.
Single class: you use the -cp command line switch to define the classpath
Executable jar: the jar itself defines the classpath in its META-INF/manifest.mf file. The -cp command line switch is ignored.
Since you use Netbeans, you'll get an executable jar so make sure to learn how such a jar is structured.

How can I get a single jar file with NetBeans?

How can I get a single jar file with NetBeans?
When I create the project I get these files:
dist/lib/libreria1.jar
dist/lib/libreria2.jar
dist/software.jar
The libraries that have been imported to create the project are in separate folders:
libreria1/libreria1.jar
libreria2/libreria2.jar
libreria1, libreria2, dist folders are all located inside the project folder.
I added the following code to the build.xml:
<target name="-post-jar">
<jar jarfile="dist/software.jar">
<zipfileset src="${dist.jar}" excludes="META-INF/*" />
<zipfileset src="dist/lib/libreria1.jar" excludes="META-INF/*" />
<zipfileset src="dist/lib/libreria2.jar" excludes="META-INF/*" />
<manifest>
<attribute name="Main-Class" value="pacco.classeprincipale"/>
</manifest>
</jar>
</target>
Of course there is also the project folder:
src/pacco/classeprincipale.form
src/pacco/classeprincipale.java
Can you tell me what is wrong? The error message I get is as follows:
C:...\build.xml:75: Problem creating jar: archive is not a ZIP archive BUILD FAILED (total time: 2 seconds)

This is not a NetBeans forum, it is a JDeveloper forum. You might want to try http://forums.netbeans.org/. I also saw your other question - try looking in the New to Java forum: New To Java

How to include the inner classes in a jar file in netbeans ide

Dear java friends
how to say to netbeans ide that it has to include the
inner classes in the jar file.
(i have one single applet class
with two inner classes that show up
in the build/classes file but not in the jar).
The applet works in the viewer but not
in the browser (I believe because the
xxx$yyy etc should be in the jar)
willemjav

First, please stop posting the same question multiple times:
Duplicate of http://forum.java.sun.com/thread.jspa?threadID=5269782&messageID=10127496#10127496
with an answer.
Second, If your problem is that you can't do this in NetBeans, you need to post to somewhere that provides NetBeans support - like the NetBeans website's mailing list. These forums do not support NetBeans (or any other IDE) - they are Java language forums.

How to access files outside a .jar file netbeans project

Hi, i need to access a file outside a built project inside netbeans. Ideally i would like this file next to the .jar file as myapp.properties. If possible i would like it so that when i am compiling and running the project in netbeans the file can be with the class files or something along those likes. Either way it would be nice to have different code for built projects and just running them outside a jar.
Heres what i got so far
properties = new Properties();
            InputStream in = this.getClass().getResourceAsStream("applications.properties");
            properties.load(in);
            in.close();this only works if the file is next to the classes. (think thats called the classpath ? )
Thanks for any replies!!

Your wrong code:
properties = new Properties();
InputStream in
= this.getClass().getResourceAsStream("applications.properties");
properties.load(in);
in.close();A right code:
// basic assumption 1: applications.properties
// is a pure ISO 8859-1 text file
// basic assumption 2: the file applications.properties
// is stored in the same directory where your
// jar file is stored
properties = new Properties();
try{
FileInputStream in      // assume current dir
   = new FileInputStream("applications.properties");
properties.load(in);
in.close();
catch (Exception e){
e.printStackTrace();
}

Error with running JAR files created with NetBeans

I have been having difficulty running the JAR files that NetBeans compiles. When I run my code from NetBeans, it always works just fine, but when I try to run the compiled JAR I get the following errors:
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
at java.lang.ClassLoader.defineClass2(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:719)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:160)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:254)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
This is happening for multiple projects now, though I don't remember it happening before. What am I doing wrong? Why is this happening? How can I fix it? Thank you for any insights...

Oh, I forgot to mention, all the NetBeans samples work, just not apps that I create. This is very frustrating!

How to include JAR file in NetBean library?

i have downloaded JavaMail jar file and now i want to include this file into NetBean library. pls help me out.

You can add the jar file to Netbeans as an external library by choosing 'Tools' on the menu bar and then selecting 'Library Manager'. In there you can give it a name and the path to the jar file. Once it is setup, if you go to your project properties, and click the 'Libraries' option on the left you will be able to add it. Select 'Add Library' and choose the one that you just created, it will now be part of your project.
Alternatively, if you don't want to set it up as a library in Netbaeans, go straight to the project properties, select 'Libraries' and then select the 'Add Jar/Folder' option, now you can navigate to your jar file and add it to your project.
For other info about JavaMail: http://java.sun.com/products/javamail/FAQ.html#install

Creating an exacutable jar file in netbeans

Hey, how can i create an exacutable jar file in netbeans ?

i guess you already have a project created, if you don't create a new java application project.
Then you need to do the following:
1. Set the main class. This is the class that will run first.
for this you need to right click in the project node, select properties, then run and in the Main Class field put the main class.
2. Set the classpath: you need to put all the libraries or resources you use in your project.
to do that right click the libraries node, select properties, then add library and add all the libraries that your project needs
by doing this steps netbeans will create your manifest file and the jar that will create will be executable.
Hope this helps.
Escobar5

Adding jar file in my gerareted jar file using netbean 4.0

Hi,
I write an application de process XML file using JDOM. I add the JDom package jar file to my project and everything work fine. But when I generate, my project jar file using netbean 4.0, my generated jar, is not working with the XML files anymore. Everything seems like it didn't include the JDOM jar file?
Thanks for any help to fix the problem.

I find that you can not use command-line such as java -classpath add classpath
it can not work, I use netBeans4.0 i don't whether because of netbeans or java itself.
you can add classpath in jar's Manifest.mf file
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.6.2
Created-By: 1.5.0_01-b08 (Sun Microsystems Inc.)
Main-Class: chat.Main
// add this line
Class-Path: dir\*.jar //(jar file name)
X-COMMENT: Main-Class will be added automatically by build

Netbeans 551: Include all libs in project jar file. Possible?

Is it possible to manually, or automaticly, include the /dist/lib directory into my "GonioLabt,jar" to make it more 'stand alone', file wise.
Netbeans generates this dist/README.TXT
========================
BUILD OUTPUT DESCRIPTION
========================
When you build an Java application project that has a main class, the IDE
automatically copies all of the JAR
files on the projects classpath to your projects dist/lib folder. The IDE
also adds each of the JAR files to the Class-Path element in the application
JAR files manifest file (MANIFEST.MF).
To run the project from the command line, go to the dist folder and
type the following:
java -jar "GonioLab.jar"
To distribute this project, zip up the dist folder (including the lib folder)
and distribute the ZIP file.
Notes:
* If two JAR files on the project classpath have the same name, only the first
JAR file is copied to the lib folder.
* If the classpath contains a folder of classes or resources, none of the
classpath elements are copied to the dist folder.
* If a library on the projects classpath also has a Class-Path element
specified in the manifest,the content of the Class-Path element has to be on
the projects runtime path.
* To set a main class in a standard Java project, right-click the project node
in the Projects window and choose Properties. Then click Run and enter the
class name in the Main Class field. Alternatively, you can manually type the
class name in the manifest Main-Class element.

Yes it is possible. The same question has been
killing me all day. Here is how I did it.
(I'm on Mac OS 10.4, but this should work anywhere)
Netbeans produces the following:
dist/myJar.jar
dist/lib/swing-layout-1.0.jar
I would prefer to have only:
dist/myJar.jar
But, as you know, myJar.jar requires the class files
stored in swing-layout-1.0.jar. I unpacked the jar
files and examined the manifest files. Here is how to
unpack and repack the jar files into a single jar
file:
First, I renamed myJar.jar to myJar.zip and let OS X
unarchive the jar for me. I did the same for
swing-layout-1.0.jar.
I then dropped the MANIFEST.MF file from
MyJar/META-INF/ into a new folder on my harddrive
Then, I dropped the package (its a folder full of
class files) from MyJar/ into the same new folder on
my harddrive.
At this point, the new folder contains:
/newFolder/MANIFEST.MF
/newFolder/myPackage/
Then, I grabbed /dist/lib/swing-layout-1.0/org/ and
dropped that into the new folder.
We now have in the new folder:
/newFolder/MANIFEST.MF
/newFolder/myPackage/
/newFolder/org/
Almost done:
Open the MANIFEST.MF file with a text editor. Mine
looked like this:
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.6.5
Created-By: 1.5.0_07-87 ("Apple Computer, Inc.")
Main-Class: ohm.GUI
Class-Path: lib/swing-layout-1.0.jar
X-COMMENT: Main-Class will be added automatically by
build
I replaced the ENTIRE contents of the file with
this:
Manifest-Version: 1.0
Main-Class: myPackage/Main
Where 'myPackage' is the folder containing my class
files, and 'Main' is the class containing the
'main(String[] args) method.
Save the file and we're ready to repack the archive.
Open the command line (in OS X this is the Terminal)
I assume the syntax is the same in windoze; Navigate
to the new folder you created.
In OSX: cd /newFolder
in windoze: cd \newFolder
Then use java's jar command:
jar cmf MANIFEST.MF MyJar.jar *
What this does:
jar is the command. cmf are flags: the 'c' is for
creating a new jar archive, the 'm' is to specify a
premade manifest file, the 'f' tells jar to write the
results to a file. MyJar.jar is the name you have
chosen for the resulting .jar file. the '*' is a
wildcard character that tells jar to put every file
in the present working directory into the new .jar
Thats it! This produced myJar.jar which worked fine
by itself, as it included all the classes from
swing-layout-1.0.jar. It would be a trivial matter to
write a shell script to do all this for you, unless
of course you use something silly like windows, in
which case you'll have to write a batch file or use
python or something. Good luck, I hope this saves
others time, drop me a e-mail if this was at all
confusing! [email protected]
You should be aware that doing this may well violate the licensing terms for third-party libraries
By the way, what's silly about using Windows? Are you saying you don't develop for Windows because it's "silly"?

NetBeans JAR file

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