JAR File Development environment

Hi Guys,
I?m working on a plug-in for the popular editor ?JEdit? (http://www.jedit.org/).
I?m a very new Java developer and have been asked to help maintain existing code. My problem is not so much the code itself as the development process ? the notes in the project suggest editing and testing the plug-in in a manner that just doesn?t make sense and is an absolute nightmare to debug.
Here?s what the notes say about what needs to be done to make a simple change and then test.
1. Open project in Eclipse
2. Edit code
3. File > Export > JAR File
4. Export to C:\Program Files\jEdit\jars\Plugin.jar
5. Launch JEdit
6. Go to plugin manager and enable the plugin.
This seems to be a rather tedious and takes a long time to test even the simplest change.
Can someone suggest a better way please? Ideally I'd like to be able to add break points that are triggered while using the plugin through JEdit.
I?m sure there?s a very simple approach, but I can?t see the trees through the forest.
Thanks
Warrick

WarrickF wrote:
Pray tell kind sir. How do I suggest an alternate method when I don't know of one.
As much as I appreciate the fact that there's a written process, I'm not a little worker drone that's simply going to follow instructions when I can clearly see that they're wasting my time and the companies money.
Developing using a method that does not provide breakpoints and other basic debug features simply doesn't make sense to me. So rather than accept the status quo I'm investigating better approaches.I am glad you are not a drone, but there may be a good reason for the approach they have; I and many of my friends have worked for companies that have contracts with Government Entities and "the approach" has to be certified by an external party before any use of new process can be used. When audited and processes don't match those that have been approved certifications and/or contracts may be pulled or suspended permanently or until recertification takes place.
All I am saying is: check and see if it's OK to change the process, before you possibly waste any more of your time.

Similar Messages

Do I need to add to add a new jar file to the WLS ?

I am new to java development and would like to know if I were to use a new jar
file developed by another party in my EJB development, do I need to have this
jar file available in WLS when I deploy the EJB to it ?
I think this is not required but just need a confirmation.
Thanks

Hi,
I take this to mean you are using java classes from the 3rd party jar in your
EJB bean class. If that is the case, then you need the jar file in your classpath
when you compile the EJB classes.
Also, you will need the jar file to be in the classpath when the EJB is used.
You can do this in a variety of ways. If the 3rd party jar is going to change
infrequently, then you can put it in the system CLASSPATH in your startWebLogic
script. Or you can add all the classes of the jar file in the root level of the
EJB (Yuck!!).
Perhaps the best answer is to create an enterprise application (EAR). Then you
place the jar file in the root level of the EAR. In the META-INF\MANIFEST.MF
file of the EJB place
Class-Path: filename.jar
Then when you build the .ear file use:
jar -cvfm ..\commuterLog.jar META-INF\MANIFEST.MF *
hope this helps,
pat
"John" <[email protected]> wrote:
>
I am new to java development and would like to know if I were to use
a new jar
file developed by another party in my EJB development, do I need to have
this
jar file available in WLS when I deploy the EJB to it ?
I think this is not required but just need a confirmation.
Thanks

ODI - Multi development environment how to share the JAR files

Hi,
For some of our functionality, existing KM not sufficient so we created with our own KM and we have called some jave code which we created and place inside lib directory of ODI as a JAR file. there are four people in the development work. so we have four development environment(all are complete installation, i.e while installing we choosing Complete Option).
One of our developer created the our own KM and he placed the jar file in his own Dev environment's lib Directory. Since four Dev environment shares the some work rep we could see the new KM and all the ODI object in all the dev env. but if we run the the ODI interface which use the new KM from other Dev environment where we dint place the jar we are getting Error.
if we keep the jar file in all the other three Dev environment's LIB directory then respective interface working.
here my doubt, is there any other way to share the JAR file to all the Environment without copying into everywhere?
Thanks
Knidhi

Thanks you verymuch Cezar and Ratish, now almost i got the answer for my question.
i installed ODI Server into separate machine. it has folder structure as follows
Directory: D:/ODIServer/oracledi/ has the following subfolder
1.bin 2.drivers 3.lib 4.tools.
here i need to keep my Jar files under the lib folder. am i right?
and bin directory contains only Agent related batch files. (agent.bat, agentscheduler.bat,agentservice.bat,agentstop.bat,agentstart.bat,agentweb.bat and jython.bat and respective .sh files)
here dont know how to precede the following things
1. how to configure the Master and Work Repository information with ODI Server?(MR and WR i already created with the help of one the ODI Client)
2. how to configure the Client machine to Server?
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Knidhi

.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 {
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        } 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 ?

Jar file to Java Development

Hi,
I'm using the BerkeleyDB 4.5.20, where can I find the .jar file to configure in my environment of development? In JE it's easy, but in BDB4.5.20 I can't find it.

In that case the JAR files should be at:
c:\Program Files\Oracle\Berkeley DB 4.5.20\jar
There are two JAR files, one that contains the API (db.jar) and one that contains the examples (dbexamples.jar).
In order to run anything using the Java API you need to have libdb accessible in your library path. Those libraries are installed in:
c:\Program Files\Oracle\Berkeley DB 4.5.20\bin
Information on setting up an environment to use the Berkeley DB Java API can be found here:
http://www.oracle.com/technology/documentation/berkeley-db/db/ref/java/conf.html
Regards,
Alex

Problems with signed JAR files in JWS/JRE6 environment.

Hello All,
I'm encountering a problem running our desktop application as a Java Web Start deployment in a JRE 6 environment. There were never any problems when running the same application as a JWS deployment in JRE 1.4, or 5, environments. There are also currently no problems in a JRE 6 environment when running the application as a standard desktop application.
The problem which I am having has nothing to do with launching the application. But for good measure, I verified the JNLP file with JaNeLA. A couple things we out of order, which I addressed to make JaNeLA happy, but my problem still persists. Here is my JNLP file (anonymized to protect the innocent):
TS: 2010-10-18 17:04:46
<?xml version="1.0" encoding="UTF-8"?>
<jnlp codebase="$$codebase" href="$$name">
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          <vendor>Acme Corporation</vendor>
          <homepage href="http://www.acme.com/"/>
          <description>Acme Client for Acme Server</description>
          <description kind="tooltip">Acme Client for Acme Server</description>
          <icon href="desktop.gif"/>
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          <all-permissions/>
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          <jar href="lib/backport-util-concurrent.jar" download="eager" version="8.00.01.00+"/>
          <jar href="lib/commons-codec-1.3.jar" download="eager" version="8.00.01.00+"/>
          <jar href="lib/commons-httpclient.jar" download="eager" version="8.00.01.00+"/>
          <jar href="lib/commons-logging.jar" download="eager" version="8.00.01.00+"/>
          <jar href="lib/acmeapi.jar" download="eager" version="8.00.01.00+"/>
          <jar href="lib/HelpJavaDT.jar" download="eager" version="8.00.01.00+"/>
          <jar href="lib/HelpJavaDT_es.jar" download="eager" version="8.00.01.00+"/>
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          <jar href="lib/Multivalent.jar" download="eager" version="8.00.01.00+"/>
          <jar href="lib/slf4j-api-1.5.6.jar" download="eager" version="8.00.01.00+"/>
          <jar href="lib/slf4j-jdk14-1.5.6.jar" download="eager" version="8.00.01.00+"/>
          <jar href="lib/snow.jar" download="lazy" version="8.00.01.00+"/>
          <jar href="lib/AcmeTMClient.jar" download="eager" version="8.00.01.00+"/>
          <jar href="lib/xercesImpl.jar" download="eager" version="8.00.01.00+"/>
          <jar href="lib/xml-apis.jar" download="eager" version="8.00.01.00+"/>
          <extension name="installer" href="desktopInstaller.jnlp" />
          <extension name="Java Help" href="help.jnlp"/>
          <property name="java.library.path" value="./lib"/>
          <property name="admin" value="false"/>
          <property name="webstart" value="true"/>
          
     </resources>
     <resources os="Windows">
          <nativelib href="lib/jniWin32.jar" version="8.00.01.00+"/>
     </resources>
     <application-desc main-class="desktop"/>
</jnlp>-----
When running as a JWS deployment, on JRE 6, the application will be functioning normally for a little while, and then suddenly the following exception is thrown, and the current operation fails because the class in question cannot be accessed:
java.lang.SecurityException: class "acmeapi.communication.CDocImpl"'s signer information does not match signer information of other classes in the same package
     at java.lang.ClassLoader.checkCerts(ClassLoader.java:807)
     at java.lang.ClassLoader.preDefineClass(ClassLoader.java:488)
     at java.lang.ClassLoader.defineClassCond(ClassLoader.java:626)
     at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
     at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
     at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
     at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
     at com.sun.jnlp.JNLPClassLoader.findClass(JNLPClassLoader.java:288)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
     at acmeapi.common.CDoc.getAnnotationsInfo(CDoc.java:493)
     at acmedesktop.communication.CCommunicationManager.privateGetAnnotations(CCommunicationManager.java:1976)
     at acmedesktop.communication.CCommunicationManager.getAnnotations(CCommunicationManager.java:1828)
     at acmedesktop.annotations.CViewAnnotations.getAnnotations(CViewAnnotations.java:826)
     at acmedesktop.annotations.CViewAnnotations.createView(CViewAnnotations.java:583)
     at acmedesktop.annotations.CViewAnnotations.setData(CViewAnnotations.java:736)
     at acmedesktop.annotations.CViewAnnotations.init(CViewAnnotations.java:205)
     at acmedesktop.hitspanel.CHitsPanel.viewAnnotations(CHitsPanel.java:281)
     at acmedesktop.hitspanel.CHitsTab$3.mousePressed(CHitsTab.java:316)
     at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:263)
     at java.awt.Component.processMouseEvent(Component.java:6260)
     at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
     at java.awt.Component.processEvent(Component.java:6028)
     at java.awt.Container.processEvent(Container.java:2041)
     at java.awt.Component.dispatchEventImpl(Component.java:4630)
     at java.awt.Container.dispatchEventImpl(Container.java:2099)
     at java.awt.Component.dispatchEvent(Component.java:4460)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4235)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
     at java.awt.Container.dispatchEventImpl(Container.java:2085)
     at java.awt.Window.dispatchEventImpl(Window.java:2478)
     at java.awt.Component.dispatchEvent(Component.java:4460)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
     at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
     at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)-----
The classes of our desktop product are contained within the 'acmedesktop' and 'acmeapi' packages. It requires access to the hard drive of the workstation, and therefore, all jar files included with the application are signed using the following ANT task when compiled:
<signjar keystore="resources/codesigning/keystore.pfx" storetype="pkcs12" storepass="myPassword" alias="myAlias">
     <fileset dir="${jws_dist}/app" includes="*.jar"/>
     <fileset dir="${jws_dist}/app/lib" includes="*.jar" excludes="jhall__V${dt_version}.jar"/>
</signjar>-----
Therefore, all classes, within all jar files, are signed with the same certificate (with the exception of the JavaHelp libraries, which are already signed by Sun - but the class in question attempting to be loaded here is not contained within the JavaHelp jar file anyway). So, the point being, that the exception message stating that the "signer information of the acmeapi.communication.CDocImpl class doesn't match the signer information of other classes in the same package", is simply not correct. All classes within that jar file were signed using the same certificate.
I downloaded the JRE 6 source from dev.java.net and picked through this issue with a debugger. The ClassLoader.checkCerts() method compares the certificate used to sign the current class which is attempting to be loaded, with the certificates which signed all other previously loaded classes within the same package. If they don't match, the exception above is thrown. What is causing the issue is when the checkCerts() method attempts to get the certificates which signed the currently loading class, null is returned. And obviously, comparing null, with an array of the certificates which signed the previously loaded classes, isn't going to match; therefore this exception is thrown.
The checkCerts() method gets the certificates of the currently loading class by calling the java.security.CodeSource.getCertificates() method. Tracing deeper in the debugger, the CodeSource object ultimately gets the certificates from the 'signersRef' member variable of the com.sun.deploy.cache.CachedJarFile class. signerRef is a SoftReference object and can therefore be garbage collected at some point. If it has already been garbage collected, the CachedJarFile class will attempt to retrieve it again from the loaded cache entry by calling com.sun.deploy.cache.MemoryCache.getLoadedResource().
The MemoryCache class maintains the cache entries to the jar files as MemoryCache.CachedResourceReference objects, which subclass WeakReference, and therefore these objects can be garbage collected as well. If the cache entries have also been garbage collected, this leaves the CachedJarFile class with no ability to repopulate the CachedJarFile.signerRef object. Therefore it is completely out of luck getting the certificates which signed the currently loading class, which ultimately causes the above exception.
When the com.sun.deploy.cache.Cache class attempts to retrieve a cache entry using its getCacheEntry() method, it will attempt to get the entry from the MemoryCache class, if null is returned, it will recreate the cache entry and add it back to the MemoryCache. In contrast, when the CachedJarFile class attempts to get a cache entry from the MemoryCache class, if null is returned, it just gives up.
(from com.sun.deploy.cache.CachedJarFile:244)
private CacheEntry getCacheEntry() {
     /* if it was not created by Cache do not search for entry */
     if (resourceURL == null)
          return null;
     CacheEntry ce = (CacheEntry) MemoryCache.getLoadedResource(resourceURL);
     if (ce == null) {
          //This should not happen because CacheEntry should not get collected
          // before CachedJarFile is collected.
          Trace.println("Missing CacheEntry for " + resourceURL + "\n" + ce,
               TraceLevel.CACHE);
     return ce;
When debugging, code execution falls within the code block with the comment stating "This should not happen...", but it is happening in my case.
On an interesting side note, using the jvisualvm.exe tool included with JDK 6, I was able to tell that it seems as though these objects are collected the first time that the JVM allocates more heap space, and then the issue will occur. If I set the initial heap size very large (using -Xms) this issue won't occur at all. But that is kind of a bad solution which I would rather not do, but it is interesting to note for the sake of troubleshooting this issue. The max heap size (-Xmx) is plenty big enough, so the issue is not that we are running out of memory here.
Does anyone have any insight as to what could be causing this? I've searched, and found a couple threads with similar problems but with no clear solutions. It is not just one workstation either, it happens everywhere I deploy the app as a Java Web Start application in a JRE 6 environment. I have been using version 1.6.0_18 on XP, but it seems to happen on any update version of 1.6. Is the fact that the CachedJarFile class doesn't attempt to reload the resource when it can't retrieve it from MemoryCache a bug? I've dug as deep as I can on this and I'm at wits end, does anybody have any ideas?
Thank you
Jake
Edited by: jkc532 on Nov 12, 2010 10:35 AM

jkc532 wrote:
.. Is the fact that the CachedJarFile class doesn't attempt to reload the resource when it can't retrieve it from MemoryCache a bug? From your comprehensive investigation and report, it seems so to me.
..I've dug as deep as I can on this and I'm at wits end, does anybody have any ideas?Just after read the summary I was tired, so I have some understanding of the effort you have already invested in this (the 'wits' you have already spent). I think you should raise a bug report and seek Oracle's response.

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Hi All ,
         I have a requirement to call the methods of a JAR file into
         WebDynpro Environment. can anybody suggest me How this can be achieved. I Have a JAR file named FastTrack.API
which contains few methods and i want these methods to be accessable into WebDynpro as other methods.
Plz Somebody help me to sort this out.
Regards,
Deepak.

Deepak,
Please follow these 2 steps:
1. Add jar into webdynpro project
        Right Click on ur project -> Select properties -> Java Buil path -> Choose Libraries Tab -> Add External Jars -> add the file from ur computer
2. Use the jar
      write the import statement in your webdynpro code to utilize the properties of added jar.
Thanks & Regards,
Ram

Question about using third party jar files in Java Web Start Environment

Hi everybody, I got a very strange problem and still can't figer out how to solve it. Can anyone help to overcome this problem?? Thanks in advance.
Question: I wrote a simple java swing application to connect to Oracle database. I packed whole my classes and a third party jar file(classes12.jar) to a new jar file named "IRMASSvrMgntGUI.jar" and then use command 'jarsigner' to signed IRMASSvrMgntGUI.jar. There is no problem when I execute 'java -jar IRMASSvrMgntGUI.jar' in the command line. But when I execute this application via Web Start Environment, an "java.lang.NoClassDefFoundError: oracle/jdbc/driver/OracleDriver
" error occured with the following detail log shown in Jave Web Start Console:
=============================================================
java.lang.NoClassDefFoundError: oracle/jdbc/driver/OracleDriver
     at DBConnection.getNewConnection(DBConnection.java:25)
     at IRMASSvrMgntGUI.actionPerformed(IRMASSvrMgntGUI.java:524)
     at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
     at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
     at javax.swing.AbstractButton.doClick(Unknown Source)
     at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
     at javax.swing.plaf.basic.BasicMenuItemUI$MouseInputHandler.mouseReleased(Unknown Source)
     at java.awt.Component.processMouseEvent(Unknown Source)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Container.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Window.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.run(Unknown Source)
==========================================================================
contents of the manifest file I used to create this jar file are as follows
===================================
Manifest-Version: 1.0
Main-Class: IRMASSvrMgntGUI
Class-Path: classes12.jar
Created-By: 0.9a (itoh)
===================================
and file structures in "IRMASSvrMgntGUI.jar" is
====================================
META-INF/
classes12.jar
DBAuthenticateDialog.class
DBConnection.class
IRMASSvrMgntGUI.class
====================================

If you directly include classes12.jar in IRMASSvrMgntGUI.jar, the classloader won't be able to find the classes inside classes12.jar. You should sign classes12.jar separately and include that in jnlp along with your application specific jar. When you're launching your app using "java -jar somefile.jar" then the classpath settings in manifest file are used, but that's not the case when you start using JWS since in this case the classpath is based only on the " <jar href=..." entries in jnlp.

Jar file doesn't read classpath environment variable from windows xp

I created a small program that uses javamail and jdbc driver. I program on Win XP and use java 1.6.04.
When I compiled my classes the program works fine but when I created a jar package the jar file cannot 'see' the classpath that windows has already set.
I have to set the classpath in the manifest file and then it works ok.
Is this normal? I was expecting that the jar file would work just fine without any complication since the classpath is already set in the system?
If you could point to any documentation that covers this it would be great.
Thank you very much.
Genti

genti_tech wrote:
I specified the class-path in manifest in jar file and I looked at the tutorial you are suggesting:
http://java.sun.com/docs/books/tutorial/deployment/jar/
which is not clear at all about the fact that jar ignores the class-path environment variable.It is specified for java. http://java.sun.com/j2se/1.5.0/docs/tooldocs/windows/java.html#-jar

JAR File Development environment

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