JAR file getting opend latley

Hi .all
I have a JAR file with size *1.52 MB*. When i am trying to open from command prompt its taking considerable time to open. I tried in somany way to open it fastly, but i am not able to do it. My main-class loads some images while opening, but i commented that code. Eventhough its taking much time to open.
can anybody tel whats the exact reason to happen this. And pls anybody suggest me to load it fastly.
Sreedhar P

This error is displayed when the Certificate Chain extracted from the manifest of the Jar file is null. To help you figure out why, (assuming you are using Java Web Start 1.5.0), set the tracing values in the deployment.properties file:
deployment.trace=true
deployment.trace.level=all
and then run again and look at the output in the trace file. It should give you a clue.
If you are using an earlier version of Java Web Start, first try with 1.5.0_0X, there might have been problems in the past with empty directories, and non-english characters in the filenames in the jar file.
/Andy

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While uploading Jar file, getting an error Jar file check failed VeryUrgent

Hi SRM Experts,
System SRM 5.5 with ECS and ECC 6.0
I am using Eclipse 3.5.1 to Download and Upload User Exits into SAP, While I was downloading user exits it was working fine. While I was Uploading User Exits, getting an error. Jar file check failed.
As per User exits manual steps I have executed. But I was unable to upload a jar file successfully.
Someone focuses light on this issue. Greatly appreciate.
Awaiting for quick responses.
Please focuses a light on this issue. Common friends no one worked on this issue.
Thanks in Advance.
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John

pl check the info at below link
may help you
http://www.cs.utexas.edu/~scottm/cs307/handouts/usingJar.html
BR
Dinesh

What determines where jar files get placed in a war?

Using Eclipse I have imported a WAR with source. I have exported that project as a new war and it ran fine. I then added my own package and exported the war again. The jar file does not show up in /WEB-INF/lib folder. When I deploy the war on a tomcat server it barfs the following error:
Caused by: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.sharpline.fields.form.fields.TextAreaFormType] for bean with name 'com.sharpline.fields.form.fields.TextAreaFormType#53c37' defined in ServletContext resource [WEB-INF/activiti-standalone-context.xml]; nested exception is java.lang.ClassNotFoundException: com.sharpline.fields.form.fields.TextAreaFormType
     at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1262)
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:433)
     at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:270)
It looks to me like my class (jar) is missing in the final war. I am new to this and have searched, I just don't quite know what to look for. How do I resolve this?

extract the war which you had deployed on tomcat and see if this jar is present there, if not then your war file packaging is not proper.

Installation of IPC AP 7.0 Jar is getting Failed when uploading in CRM

Hello Experts,
we did some changes in the previosly uploded version of IPC AP 7.0 customer user exit Jar file in eclipse.
While uploading the new modified jar through transaction /SAPCND/UE_DEV in CRM we are getting error :" installation of module <Jar file name > has failed ".
when we checked the logs in SM 53 we seen the below mentioned error:
Message: Exception of type com.sap.sql.log.OpenSQLException caught: Exception of type com.sap.sql.sqlparser.CommonSQLParserException: - statement "DELETE FROM "SVMCRT_MOD_TR_T" WHERE "MODULE_NAME" LIKE ? ESCAPE ^ (reason: Modification of ABAP tables is not permit ted)" is not supported
caught: - statement "DELETE FROM "SVMCRT_MOD_TR_T" WHERE "MODULE_NAME" LIKE ? ESCAPE ^ (reason: Modification of ABAP tables is not permitted)" is not supported
--> com.sap.sql.log.OpenSQLException: Exception of type com.sap.sql.sqlparser.CommonSQLParserException: - statement "DELETE FROM "SVMCRT_MOD_TR_T" WHERE "MODULE_NAME" LIKE ? ESCAPE '^' (reason: Modification of ABAP tables is n" is not suppor ted
caught: - statement "DELETE FROM "SVMCRT_MOD_TR_T" WHERE "MODULE_NAME" LIKE ? ESCAPE '^' (reason: Modification of ABAP tables is not permitted)" is not supported
at com.sap.sql.log.Syslog.createAndLogOpenSQLException(Ljava/lang/Class;Ljava/lang/String;[Ljava/lang/Object;)Lcom/sap/sql/log/OpenSQLException;(Syslog.java:85)
at
if required i can post the complete stack trace.
any inputs/suggestions are most welcome.
Thanks & regards,
Siddharth

Hi Mark,
Yesterday after Posting the thread we found the same Note ,Issue occured because of JAVA write access was not enabled on the table ,After enabling it as mentioned in SAP Note, Jar file get successfully uploaded.
Thanks for your Help also.
Regards,
Siddharth

How to authenticate a JWS Client download of jar files on a web server

Here is a history of how i tried to implement the auth system:
The resources(jar files) cannot be downloaded by any HTTP client from the server without some authentication method.
As JWS is not reliable when using cookies (only 1.5 supports them, but with problems when in JNLP file i specify j2se version=older that 1.5) , i implemented another mecanism that works like this:
1. 1.The template JNLP looks like this
<?xml version="1.0" encoding="utf-8"?>
<jnlp codebase="http://10.3.0.62/" href="mapped/#JWS_CODE#___#PLATFORM#___app2.2.jnlp">
    <information>
       bla bla
    </information>
    <security>
        <all-permissions/>
    </security>
    <resources>
        <j2se version="1.4"/>
        <jar href="http://10.3.0.62/mapped/gui.jar?jwsid=#JWS_CODE#" version="2.2"/>
        <jar href="http://10.3.0.62/mapped/data.jar?jwsid=#JWS_CODE#" version="2.2"/>
        <jar href="http://10.3.0.62/mapped/log4j.jar?jwsid=#JWS_CODE#"/>
    </resources>
    <application-desc main-class="com.bet.blues.gui.Application">
        <argument>-host</argument>
        <argument>ursus</argument>
        <argument>-port</argument>
        <argument>17771</argument>
    </application-desc>
</jnlp>2. All resources found in /mapped/ directory are mapped to JWSServlet
3. The users login to a site , clik on link , /mapped/app2.2.jnlp , the servlet checks if the session is active , gets the PLATFORM form browser request header , gets the JWSCODE for the logged user, replaces this in the template, and returns it to the client
4.Now after the 1st download the JNLP file is opened by JWS Client , that checks for latest version , requesting the JNLP file again
like this:
GET http://10.3.0.62/mapped/f12ks21092___windows___app2.2.jnlp5.Now the servlet sees the the request has a JNLP file name with an ID and PLATFORM, and serves the JNLP as before
6.The JWS Client will request for JAR Files
GET http://10.3.0.62/mapped/gui.jar?jwscode=f12ks21092?version-id=2.2Note: that i have forced JWSID parameter in the URL, that's why the query string contains 2 "?"
- forcing this is because the mapped/*.jar is redirected JnlpDownloadServlet that supports versions , diffs - i cannot use 'version' to put there the jswid param(e.g .../mapped/gui.jar version="fk12ks21092_2.2" because the JnlpDownloadServlet will not find this version , and if JWS Servlet will redirect to JnlpDownloadServlet with correct version param in request, the JWS Client will raise an exception because version responded is not right(JNLPDownloadServlet marks in response HTTP header the version of the jar so JWS CLient will chek it)
JWS Client expects version 'fk12ks21092_ver2.2'; to correct this i should modify the JnlpDownloadServlet and i shouldnt
THE PROBLEM :
on older versions than 1.5 JWS Client raises an exception because it wants to create a temp file named
" gui.jar?jwscode=f12ks21092" because it contains "?"
Only with 1.5 that seems to parse the jar name until it meets "?" char :(
Thats why i wanted to send an error to the client to upgrade to Java Web Start 1.5
Now, maybe u have a solution to this problem...
All i want is a solution to let JWS Client download jars only if the user is authenticated by some mecanism....and also support the versioning system.
Also:
Note that the jar names must preserve on the client JWS Cache dir ( i cannot use the same method to pass the JWSCODE when requesting the JARS as when requesting the JNLP).

You need to look into JAAS

Jar file upload and transport in Java webdynpro

Hi,
I wanted to change do small chnage to the existing jar file in webdynpro jave application. I did change the jar file.
Question: Please let me know how can i include this jar file into existing application back and how the transport happend for the same?
do we need to copy paste the ne jar file(updated jar file) in local drive where it exists and do little chnage the application will create an activity. then move to test and prd will that move the jar file as well?
appreciate your prompt help.
Thanks
Rag

hi rag,
1) "Like this have couple projects for same application. Under two are Jars, under these two jars i have to update my changed jar. Then the file used in another project.
I can see other project which is using this jar is seeing in webdynpro explorer.
But two jar projects are not showing in webdynpro explorer, but they can see through Navigator after i imported into location NWDS."
here it shows that two are external library files having the jar file in the library folder.
2) "My request is i have changed the jar file from existing jar project and replaced it in local path where it is currently. but it didnt ask me the activity to deploy the same.
In this part , im not clear like how you were able to change the jar file without checking out the external lib dc , in the external lib, as i told earlier if it was checked out then activity will not be asked,
3) "so how do i update JAR file and delpoy into server. and where can i see the JAR file been updated in server? i am how to deploy into server."
JAR file cannot be deployed directly the way you deploy a DC or Webdyn pro project.
if you have changed the jar file , just build your webdynpro project that uses this jar file. and deploy the same . The new jar file gets deployed along with your webdynpro project.
if you want to deploy jar file, then you have to create a wedynpro development component of type j2EE-Server--library .
Then in Used Dcs add your external lib dcs assembly public part with build time dependency
go throught this blog you will know more about external jar file and its usage at run time.... and how it is getting deployed to the server.
https://scn.sap.com/people/bertram.ganz/blog/2008/11/24/how-to-use-external-jar-files-in-web-dynpro-development-components

Failed to load main-class manifest attribute from jar files....

Hi,
I installed Java1.5 version in my system before to that Java1.6 was installed and uninstalled. When i i double clicked on any jar file getting a message like: Failed to load main-class manifest attribute from<name of the jar file>.jar file....
can anyone please suggest me how to rectify this error.

mvnath wrote:
The jar files are worked before the installation of 1.5 but not after installation of 1.5I am guessing that the Windows file association for .jar somehow got munjed. It's hard to say since you have not provided much information.

Yet another problem getting a .jar file working on Mountain Lion

The program I need to run is used for generating sounds. Its a simple java program, set up in a Windows .msi container: http://innertotality.com/?q=node/9
I currently have the most up to date Java build from Oracle, according to their online test: v7 update 15. However, it shows up in Terminal after a java -version command as 1.6.0_41.
Whatever version it is, I can't get this program running on it. I've pulled the .msi file apart to get the cab file, pulled that apart to get my jar file, in this case "headwave.jar". Clicking on it makes the JRE icon appear in the dock and do its dance, then it closes down. I can repeat that all I want and never get a running app out of it. I've opened the console up and watched for messages. This is all I've managed to get:
2/23/13 9:58:44.218 PM login[2871]: USER_PROCESS: 2871 ttys000
Nothing more, and I've only seen that once. I get more out of Console simply dragging a word around in this box to edit this post.
If anyone could shed some light on what I need to do to get this running, I would greatly appreciate it. There are very few Mac OS X sound tools available to do what I need so this is really holding my project back. Most everything out there has to do with professional or amateur audio editing, not pure tone generation. I tried ToneGen and it just isn't doing what I need, and Perfect Tone and Tone Generator X haven't been updated for Intel Macs.

No I haven't, but I just tried it. I tried to cd to the desktop (worked), found the Headwave folder with ls and then cd into it, found the jar folder I extracted earlier (disk1), cd into it, etc etc. I found HeadWave.jar and knew I had the right directory. java -jar HeadWave.jar gave me the following:
Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: Widgets/JSSampleListener
          at headwave.Main.<init>(Unknown Source)
          at headwave.Main$1.run(Unknown Source)
          at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
          at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:708)
          at java.awt.EventQueue.access$400(EventQueue.java:82)
          at java.awt.EventQueue$2.run(EventQueue.java:669)
          at java.awt.EventQueue$2.run(EventQueue.java:667)
          at java.security.AccessController.doPrivileged(Native Method)
          at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlConte xt.java:87)
          at java.awt.EventQueue.dispatchEvent(EventQueue.java:678)
          at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:29 6)
          at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
          at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:20 1)
          at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
          at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
          at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Caused by: java.lang.ClassNotFoundException: Widgets.JSSampleListener
          at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
          at java.security.AccessController.doPrivileged(Native Method)
          at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
          at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
          ... 16 more
This is the same message I received earlier. I'm sure the info I need is hidden behind the "...16 more" lol

Please I can not get a .jar file to run on XP SP3 start/run/cmd/

I can not get a .jar file to run on XP SP3 start/run/cmd/
Please help if can figure this out. I'm convinced it is a Windows XP SP3 problem from searching on google and seeing other ppl on XP SP3 with same problem (but no working solution for myself). I'll try to be complete-listing all I've done.
I had installed: Java SE Runtime Environment v6u14 for Windows Multi-language
I had checked here it was working properly: http://www.java.com/en/download/manual.jsp
I'm trying to run this jar file (soht-client-0.6.2.jar):
http://prdownloads.sourceforge.net/telnetoverhttp/soht-java-client-0.6.2.zip?download
http://www.ericdaugherty.com/dev/soht/javaclient.html < this is the information for the program.
(yes the file can be executed and should open the program's window
I wanted to post screenshot of it but friend that it's working for isn't here)
_(Please find log of all cmds I did in this post here: http://pastebin.com/f792983df )_
_I have extracted +'all' the files to: C:\062\+_ (I have tried using other directories, same problem)
++I then start/open/run/cmd+
then I: cd C:\062\+
then I try various commands - all+ of these do absolutely nothing- meaning no errors, no reply, no window opens, nothing except enters that directoy again:
java -jar soht-client-0.6.2.jar
java -jar -client soht-client-0.6.2.jar
java -client -jar soht-client-0.6.2.jar
java -jar soht-client-0.6.2.jar soht.properties
soht-client-0.6.2.jar
So I try this cmd: java soht-client-0.6.2.jar
Reply:
C:\062>java soht-client-0.6.2.jar
Exception in thread "main" java.lang.NoClassDefFoundError: soht-client-0/6/2/jar
Caused by: java.lang.ClassNotFoundException: soht-client-0.6.2.jar
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)
Could not find the main class: soht-client-0.6.2.jar. Program will exit.
I try this cmd:
java -jar soht-client-0.6.2.jar -client
Reply:
C:\062>java -jar soht-client-0.6.2.jar -client
Unable to load configuration file: -client - java.io.FileNotFoundException: -cli
ent (The system cannot find the file specified)
SOHT Java Client
The SOHT Java Client requires a properties file. Either start
the application in the same directory as the soht.properties
file, or specify the file name on the command line:
java -jar soht-cleint-<version>.jar c:\soht.properties
So then I do these cmds which produce the exact same error/reply just above; Unable to load..:
j_ava -jar soht-client-0.6.2.jar -client soht.properties_
java -jar soht-client-0.6.2.jar -client C:\062\soht.properties
So then I copy soht.properties to C root and do:
java -jar soht-client-0.6.2.jar -client C:\soht.properties <same error as above
Then from other information I have read I right click on the .jar file, select open with Always open with:
_"C:\Program Files\Java\jre6\bin\javaw.exe"_
Try again.. same problem.
Then I do cmd:
_"C:\Program Files\Java\jre6\bin\javaw.exe" -jar "C:\062\soht-client-0.6.2.jar"_
does nothing, retry the other commands same thing (either nothing or those same replies)
Then I read (http://forums.sun.com/thread.jspa?threadID=5384879) someone had the same problem as I and they solved it by uninstalling all Java/reboot/ then install JDK 6 Update 14 with NetBeans 6.5.1 start NetBeans and then it worked for them.
So I unistalled all Java, rebooted and gave the cmd another try (before re-installing), now a new error, of course:
C:\062>java -jar soht-client-0.6.2.jar
'java' is not recognized as an internal or external command, operable program or batch file.
Then I install Java SE and NetBeans Cobundle (JDK 6u14 and NB 6.5.1) Final Release/ reboot/ open Netbeans/
go to test java page; all is good, run cmds again -and still nothing..
C:\062>java -version
java version "1.6.0_14"
Java(TM) SE Runtime Environment (build 1.6.0_14-b08)
Java HotSpot(TM) Client VM (build 14.0-b16, mixed mode, sharing)
I reassociate program with: C:\Program Files\Java\jre1.6.007\bin\javaw.exe_
same thing.. nothing
Thank you very much for your time :D_
PS. My computer has been newly reformatted so needing another reformat I'm sure is not the solution.

Thank you very much for your replies Taggert_77 & swmtgoet_x :D
Taggert77_: I have never used NetBeans. I only installed it in the bundle as I had read on another post that somehow installing the bundle magically helped another user with the same problem (he didn't know why it worked after that either).
Before XP SP3 I was able to execute .jar file through cmd prompt. Now I am not.
This file is executable, grab it and you will see. Here is a screen shot (program in front is FlashFXP, behind is the cmd prompt and what should happen):http://www.freeimagehosting.net/uploads/53273b4ddf.jpg
swmtgoetx_: I only did the other cmd's to try to make it spit out something, anything lol :D
The proper cmd is simply: java -jar soht-client-0.6.2.jar
I did give your cmd a try, and it produced nothing :( (just like the other correct cmds)
java -client -jar soht-client-0.6.2.jar soht.properties
Thank you again...the mystery remains
PS. If you do a search for this you'll find an amazing amount of XP SP3 users with the same problem and no solution posted that I could find except one chap that did the unistall install order that I did above).

How Do I get icons image directory to work in a JAR file?

Yes, I must admit after going through the tutorial and other stuff I am stiil stumped
I have an application that uses the jlfgr icons for the toolbar, and it works fine as long as i actually run it from the directory that it is in.
I would like to put in into a jAr file, and be able to execute it from other places.
I have a Directory named PhoneBook
in that are the classes I use
AddressBook - the main class
PersonEntry - The 'data class'
and various other things like FileFilters.....
inside that directory there are two more:
images - contains all the icon images
Data - where the default 'database' entries are stored.
I use code like this:
     private void fillToolBar( JToolBar bar )
          Dummy = new JButton(new ImageIcon("images/New16.gif"));
          Dummy.setActionCommand("New");
          Dummy.addActionListener(this);
          Dummy.setToolTipText("New");
          bar.add( Dummy );
          // etc etc
to get all the icons into the toolbar
I have made a Jar file that has all the classes and all the directorys with the icons in it
and so the program runs, but does not get the icons for the toolbar, I just get a whole load of 'dud' buttons.....
AS this is the first time i've ever got the GUI to look right rather than just the code functioning properly
I'd like to get the whole thing in a working Jar file
So Could someone show me Step By Step, How I get my classes and images into a Jar file
so that i can from a different directory go
java - jar Phone.jar
and have the GUI come up with all the images, assuming I'm totally thickheaded when it comes to Jar files.?
I also can't get the images to show up if I merely run the 'program' from another directory than the one it is compiled in
I can get the program to run, just not access the images with something like
java -cp blah/blah/blah AddressBook
{the main class is AddressBook }
the data directory can be anywhere as I use a JFileChooser to allow the user to open and save desired files.
I really would appreciate some clear workable help. {though I'm running out of Duke Dollars...}

What you need is a correct path to the directory
inside of the jar. This can be accomplished by adding
a line to your main program like this:
URL
url=myProgram.class.getResource("images/New16.gif");
Dummy = new JButton(new ImageIcon(URL));
where myProgram.class is the name of the class
file that contain the main method.
Hope this helps....
;o)
PS: I don't want your dukes...I got them coming out of
my ears!
O.K, that works thank you.
I put something like:
for all the 'buttons' in the toolbar
URL url = null;
Class ThisClass = this.getClass();
url=ThisClass.getResource("images/New16.gif");
Dummy = new JButton(new ImageIcon(url));
Dummy.setActionCommand("New");
Dummy.addActionListener(this);
Dummy.setToolTipText("New Database");
bar.add( Dummy );
etc for all the rest of the 'buttons'
After Reading the API docs on URL's etc I'm still not sure as to why it works, but it does....
I am able now to place the class files in a jar along with the images and it all works fine
although now I don't quite follow all my code....................
I assume that
url=ThisClass.getResource("images/New16.gif");
returns some sort of 'relative url ' ???
Thanks for the help though.

Jar file is not getting executed from commandline

Hi ,
this is the weired problem i had.
i have created a executable jar file.When i double click that file it is getting executed without any problem but when i go to command prompt and tries to run this jar by using folowing command
java -jar myjar.jar
it is giving me the error as
Exception in thread "main" java.lang.UnsupportedClassVersionError:com/build/deploy/Deploy (Unsupported major.minor version 49.0)
i am not getting why it is giving me this version error.
can any body answer my question.
i am using version JDK1.5 also program is running perfesctly from ecllipse IDE.

I believe that something in your system is set up so that when you double click the jar, the correct java or javaw version is being used, but when you use the command line, an older version of java is being used.

Get list of classes present in an applet's Jar file?

I have an applet for drawing diagrams, which is bundled in a jarfile together with classes for each type of element in the drawing (e.g. a class for drawing 2-input NAND gates, a class for J-K flip-flops, and so on). When I add a new type of drawing element I have to modify the applet to add the new class to the applet's "Insert" menu to allow the element to be inserted. What I want to do is to search the jarfile containing the applet for any classes derived from DrawingElement and add them automatically to the Insert menu when the applet is inited. I presume this would require using getClass().getClassLoader() to get the class loader that read the JAR file, but from there it would seem I need to know the name of the resource to load. Is there a way of browsing the list of resources in the JAR file?

AndrewThompson64 wrote:
That 'modify the applet' is not strictly necessary. The list of menu items and classes might be passed to the applet as applet parameters, or as a property file or XML (or whatever) that defines the available elements.I could do this -- I'm just trying to avoid getting the list out of step with the contents (or if you prefer, I'm just being lazy!).
Is there a way of browsing the list of resources in the JAR file?Yes and no. You might try this general strategy (untested).
1) Gain an URL to a resource in the Jar in which the plug-ins exist.
2) Parse that URL for everything before the '!' symbol to get an URL for the Jar itself.
3) Get an InputStream from the Jar via URL.openStream().
4) Get a ZipInputStream by wrapping the InputStream.
5) Iterate the ZipEntry(s) to identify classes in the correct package, and store them in a collection of some type.
6) Iterate the collection and check each one for extending DrawingElement, using reflection.
I am guessing step 6 will require the applet to be trusted.Sounds plausible, and I'll give it a whirl. However, I hadn't thought about the "trusted" bit of this; maybe I can just create new instances and cast to DrawingElement, ignoring any that throw exceptions. I'll have to give it a go and see what happens.
BTW - once you have the right classes, how do you get the screen name of them? Is the name defined in one of the attributes of a DrawingElement? What prevents name clashes?Plan A: I have a getIdentification() method that returns a string identifying the element, but I have to keep this unique the hard way (by hand).
Plan B: use the class name with some prettification (e.g. have a class _2_input_NAND_gate which gets displayed as "2 input NAND gate") so that the compiler does the work of keeping it unique. Not sure I like this, though.
Many thanks for your help.

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

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