How to access external JAR in EJB ?

In Web applications, we can keep external jars used in WEB-INF/lib directory.
How to achieve same in an EJB ?
Thanks,
George

"George" <[email protected]> wrote in message news:[email protected]..
In Web applications, we can keep external jars used in WEB-INF/lib directory.
How to achieve same in an EJB ?If you are on weblogic 8.1, you can put the jars into APP-INF/lib in ear. If it's not the case, you should refer the
jars in MANIFEST.MF of corresponding ejb-jars.
HTH.
Regards,
Slava Imeshev

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How to access external jars from ejb jars

All,
This is my first visit/post to this group. What I'd like to know is how
an external jar file with common, shared classes can be access by a
session bean in an ejbc'd jar. I'm running WLS 6.1 and have some DAO
and other classes in a common.jar that I'd like all my ejbc'd jars to
have access to. Any help would be appreciated!
-Keith

Keith,
"Keith" <[email protected]> wrote in message news:[email protected]..
This is my first visit/post to this group. What I'd like to know is how
an external jar file with common, shared classes can be access by a
session bean in an ejbc'd jar. I'm running WLS 6.1 and have some DAO
and other classes in a common.jar that I'd like all my ejbc'd jars to
have access to. Any help would be appreciated!I'd recommend packaging your application as an EAR - than your
ejbjars will have access to utility jars.
Regards,
Slava Imeshev

How To Access a jar file present outside the war file through a jnlp

Aoa
I m new to this forum
I m having problem with my jnlp file
i want to know is there any way to access a jar file through jnlp.The problem is that my jnlp file is present in the war file
and i want to know how to acess a jar file through this jnlp.The scenerio is as below
I m using ear file on jboss.Its hirerchy is as
-PAN-war.war
-launch.jnlp
-PAN-app-client.jar
my jnlp file is as follows:
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="http://localhost:8080/" href="PAN/launch.jnlp">
<information>
<title>PanEmirates</title>
<vendor>M Fazal Ur Rehman</vendor>
<description>PanEmirates</description>
<description kind="short">PanEmirates</description>
<homepage href=""/>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="1.5+"/>
<jar href="PAN-app-client.jar" download="eager"/>
<jar href="lib/javafxrt.jar" main="true" download="eager" />
<jar href="lib/Filters.jar" download="eager"/>
<jar href="lib/javafx-netbeans-fxuserlib.jar" download="eager"/>
<jar href="lib/swing-layout-1.0.3.jar" download="eager"/>
</resources>
<application-desc main-class="net.java.javafx.FXShell">
<argument>pan.Main</argument>
</application-desc>
</jnlp>
when i run launch.jnlp file it says unable to download resource http://localhost:8080/PAN/PAN-app-client.jar
how to access this jar file
Any help or comment would be highly appreciated
Regards
M Fazal Ur Rehman

Excellent question. I don't see any client-jar in your EAR file structure. So I am assuming you are writing a separate client application which will talk to the ejbs deployed as part of this EAR. You need to do the following:
Write another EAR file with the following structure:
ear:
META-INF/application.xml
util.jar
client.jar
client.jar should have a META-INF/MANIFEST.MF and that should contain Class-Path:util.jar and value for Main-Class attribute.
Now deploy this new ear to your application server and execute it using Application Client Container that comes with your app server.
If you don't want to write another EAR file, then bundle th client.jar in your original EAR file.
Points to note are:
you have to repackage util.jar again inside this ear file.
For portability reason, you should use Class-Path manifest entry in client.jar. Refer to http://java.sun.com/j2ee/verified/packaging.html and J2EE platform spec section #8.2.
Hope this helps,
Sahoo

How to use external jars in NW2004

Hello Experts,
can i use the same approach mentioned in the below Weblog for using the external jars in NW2004.
/people/bertram.ganz/blog/2008/11/24/how-to-use-external-jar-files-in-web-dynpro-development-components
and if not then what will be the best way to achieve it in NW2004.
Please provide your inputs on above.
Regards,
Siddharth

Hi Sidharth,
If you are using web dynpro DC perspective then you need to follow the following points to use the external jar files in it.
1. Create a external library project.
2. copy the external jars in the library folder os the projects.
3.) Select all the jars from the u201CLibrariesu201D folder, Right click and then select Development Component and click on Add to Public Part
4.Select the first Radio Button (Provides an API)and give some nameto it.
5. Repeat the step no 3 but now select the second radio button other than as selected in step no 4.
6. Now build your lirary DC.
7. Now create a j2ee DC project.
8. ) Expand the node DC Definition and Right Click on Used DC. Select Add Used DC.
9. Select the External Library DC with build time dependency.
10.Right click on the J2EE DC and then select Development Component followed by Build
11. Right click on the J2EE DC and then select Development Component followed by Deploy
now you can use both the libary DC and the j2ee DC in your web dynpro DC as used DC.
But if you have created a web dynpro project only(but not DC) than you can directly add the external jars in java build path
hope this will help
regards
Narendra
Edited by: Narendra Singh on Oct 27, 2009 11:22 AM

How to call external jar files in EJB project for CE

Hi,
I would be thankful if someone could help me with this -
I need to call the external jar files into my EJB project - Here is what I have done and am getting runtime exception as -
java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/glance/pdf/pt/PTDoc
1. Created a EJB project" HelloWorld " using Java perspective in NWDS 7.1 called with client as HelloWorldClient and EAR project as HelloWorldEAR.
2. Am working on HelloWorld project (1st one).
3. In my code I am instantiating a class which is a class in one of the external jar file that I need to refer in my project.
4. I have set the Java Build path but it works only for the compile time and fails during runtime.
5. Have read I need to create external library DC and refer in my project "HelloWorld".
Can anyone help me with exact steps what needs to be done - during creation of external library project and then for my "HelloWorld" EJB project. How would I be able to reference or set the external library project in my EJB project?
Looking forward to hear from experts.
Thanks,
Shiv
Edited by: Shiv Khullar on Aug 30, 2010 9:39 PM

Hi Edson,
I tried it , but it still gives me runtime exception.
javax.ejb.EJBException: nested exception is: java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/glance/pdf/pt/PTDoc
java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/glance/pdf/pt/PTDoc
Steps I performed are -
1. Created a library project and created 2 Public parts "Compilation" and "Assembly"
2. Build the library project.
Now in my EJB project using Project Explorer - set the classpath and added both compilation jar and assembly jar files.
This is how the classpath entries for external library looks like -
<classpathentry kind="lib" path="/LocalDevelopmentLocalDevelopmentexternallibrarypdftoolsforwatermarkingdemo.sap.com/gen/default/public/WatermarkAssembly/lib/java/demo.sap.comexternallibrarypdftoolsforwatermarking~WatermarkAssembly.jar"/>
<classpathentry kind="lib" path="/LocalDevelopmentLocalDevelopmentexternallibrarypdftoolsforwatermarkingdemo.sap.com/gen/default/public/WatermarkCompilation/lib/java/demo.sap.comexternallibrarypdftoolsforwatermarking~WatermarkCompilation.jar"/>
I have also added the jar files I used in my external library project as "User Library" from Java Build Path . I dont do it , then the code fails during compilation itself.
Regards,
Shiv

How to handle External Jar files in EJB DC

I have created a EJB DC.
I have added the required MDM Jar files to the class path.
These MDM Jar files are supplied by SAP for integration with Master Data Management.
But the DC build fails.
If I create the same project as a <b>REGULAR</b> EJB (non-dc approach)project, everything works fine.
Qn:
How to bundle the MDM jars (External jars)in a DC?
How to create the Public Parts in the DC for the added MDM External Jars?
How to use the above DC in the EJB DC?
Basically, I am looking for a step by step procedure,
to add external jars in a DC.
And to use the above DC in a EJB DC.
Any assistance in this regard is appreciated.

You should not reference the MDM jar files by setting classpath directly. For setting references to it from your EJB DCs , you will have to create a DC of type "External Library". Deploy this DC also before your EJBs are deployed. You will then have to create a public part for this DC and the reference the public part from the DC metadata of the EJB DC ie set the Used DC list of EJB DC to the public part of the ext lib. You will get info about this in NDS help as well on help.sap.com

How to include external jars - URGENT...

Hi:
I am using Eclipse for development.
My application uses some external jars.
This step is simple in Eclipse, one simply indicates where the jars are to the IDE.
However, when I make an executable JAR file from my project, those external JARs are not included.
So when I run my program, everything is fine until the parts that uses the external JARs.
Does anyone know how to include them outside of Eclipse platform?
I am going to see my client in an hour and of course I can't bring my source and install an Eclipse at my client's computer to show them my demo...
please help... thanx...

You add those external jars to the classpath or the jars classpath if you're running the program from a jar. Or put the external jar to JAVA_HOME\lib\ext (IIRC)

How to import external jars in a CAF project?

Hello Experts!
Could you help me find out the way to import external jars in a CAF project. I have tried to import the jars
in ejbmodule using "java build path--->libraries". But while trying to build the project it's displaying error and all the imported jars automatically get removed from the list.
I have read that creation DC of type "External Library" can help me.
1) Create a DC of type external library
2) Copy my jars to folder "libraries"
What should I do next? And how can I import my DC of type "External Library" to my CAF project?
Looking forward for your suggestion.
Thanks & Regards
Vitaly

Hi,
This article will guide you how to deploy the external jar files to the application server.
http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/60a0f850-c451-2c10-a6a6-ddcabfa3a65b&overridelayout=true
Add the library project to the public part of your caf project to use the jar files.
Regards,
Gayathri

How to use external JARs in Eclipse

Hello.
I created a jar file like that:
jar -cvf0 WarShell.jar WarShell.class
I want to use WarShell.class in Eclipse but it not in my classpath,so I choose [Project] -> [Properties] -> Java Build Path -> Libraries -> Add External JARs and add WarShell.jar to the list.
But when I run the program I got a Exception:NoClassDefFoundError.
Why?How to fix it?
Another question... Your classpath is not available in Eclipse,right?
Thanks for your time! ^_^

Hello.
I created a jar file like that:
jar -cvf0 WarShell.jar WarShell.class
I want to use WarShell.class in Eclipse but it not in
my classpath,so I choose [Project] -> [Properties]
-> Java Build Path -> Libraries -> Add External JARs
and add WarShell.jar to the list.
But when I run the program I got a
Exception:NoClassDefFoundError.
Why?How to fix it?Did you run your program from Eclipse ?
If yes, it should work (or seek for an Eclipse-specific forum.)
But if not, keep in mind that your project settings are limited to Eclipse. You'll have to define a correct classpath for running your application.
Another question... Your classpath is not available
in Eclipse,right?Mine? I don't think it is available for anyone ;-P

How to use external jar files ??

Hi all,
In my user-defined function for mapping (IR) , I want to make use a Class which is available in an external .jar file.
Our XI is working on Windows2003 OS. I set the classpath in OS environment variables.
But it is not working.
Where I should set the classpath ?
Can anyone help.
Thanks in Advance
Chemmanz
Message was edited by: Chemmanz

Hi Chemmanz,
For user defined functions, it is not necessary to use the external jar files.
Just follow the below steps:
       1.      To create a new user-defined function, choose <b>Create New Function</b> in the data-flow editor at the bottom of the screen, on the left-hand side.
       2.      Specify the attributes of the new function in the subsequent window:
Name:
Technical name of the function. The name is displayed in the function chooser and on the data-flow object.
Description:
Description of how the function is used.
Arguments:
In this table, you specify the number of input values the function can process, and name them. All functions are of type String.
       3.      In the subsequent window, you can create Java source code:
                            a.      You can import Java packages to your methods from the Imports input field, by specifying them separated by a comma or semi-colon:
You do not need to import the packages java.lang., java.util., java.io., and java.lang.reflect. since all message mappings require these packages and therefore import them.
In addition to the standard packages, you can also specify Java packages that you have imported as archives and that are located in the same, or in an underlying software component version as the message mapping.
                            b.      Create your Java source text in the editor window or copy source text from another editor.
       4.      Confirm with Save and Close.
       5.      User-defined functions are limited to the message mapping in which you created the function. To save the new function, save the message mapping.
       6.      To test the function, use the test environment.
The new function is now visible in the User-Defined function category. When you select this category, a corresponding button is displayed in the function chooser pushbutton bar. To edit, delete, or add the function to the data-flow editor, choose the arrow next to the button and select from the list box displayed.
Regards,
Prasad U

How to add external jars in the configuration of JSmooth?

Hello,
I am trying to create an exe file from a java program using JSmooth.
The program is a simple hello world proogram.
I am developing under eclipse, and I am using some external jar files as libraries.
If my program is simple,; it works fine. If I add an import of a class that is in one of these jar files, I get the following error when executing the created .exe file:
"Could not find the main class. Program will exit".
I guess I have to add this Jar file to the path for the creation of the .exe file.
My question is: does anybody know HOW to add an external jar in the configuration of JSmooth for the creation of an exe file from a Java program?
Thanks for your help
Philippe

i have the same problem phsans
you know the answers??
thanks phsans:D

How to add external jars when deploying webapp via worksop for wls 9.2

While attempting to deploy my web application using Workshop for WLS 9.2, WLS complains it is unavailable to resolve references to a 3rd party JAR(tomhawk.jar) which is being referenced by the JSPs. I have added the JAR via the J2EE module dependancy tab in workshop but that does not seem to be helping the deployment.
If i build the web application outside workshop and include the tomhawk.jar in the WEB-INF/lib folder of the deployed WAR file, the app works fine.
I have attempted to copy the tomhawk.jar into the <domain>/lib folder and restart the weblogic server. But this does not seem to help resolve the references.
Any clues on how i could achieve iterative deployments via workshop for WLS 9.2 pickup references to external JARs being referenced by the JSPs.
Thanks
Ramdas

Raj,
Thanks for your suggestion. The link that you sent out was useful. I was actually able to get the webapp to resolve its references to the 3rd party classes by adding the tomhawk.jar as an external jar via the "build path" property for the web project. I tested this by running the app in the WLS instance hosted by workshop and looks like the JAR from the build path gets somehow referenced during run time too. Not sure how this works?
Thanks
Ramdas

How to include external .jar libraries

hi,
I'd like to use an external .jar library in my Java program.
I import the package in the source code.
But where do I have to specify the file location of the .jar file. Do I have to add its directory to the PATH environment variable or somewhere else??? So far I've done this only in Eclipse, but now I'm working in a pure linux environment... with no IDE.
Thanks :)

Or specify the classpath completely when you run javac.
For example to compile a class called Foo in the current directory which uses classes from an external jar file I would say
javac -cp .:../../whatever.jar Foo.javaAnd if Foo has a main() class:
java -cp .:../../whatever.jar Foo(If you are working with a number of projects each with lots of classes and lots of (different) jars, it might be time to look at Ant.)

How to import external jar file

i am using bcprov-jdk14-124.jar file for my project. i can import this jar file through eclipse project properties but this is not worklng when i create jar file for my project. This is worked in eclipse only. i want to use that jar file in my project current path. so any body help me how to import this jar file? ( i am using mac os to develop java project )

You need to specify the classpath when you execute it outside of Eclipse.
Kaj

How to access a jar file in EAR file?

I have a EAR file which contains EJB.jar file and util.jar file. Outside of EAR, I mean in client side, I need to reference util.jar file. How can I access it?
EAR structure is
|--+META-INF/
|--|---application.xml
|--|---manifest.mf
|--EJB.jar
|--|---+MEAT-INF/
|--|---|--- deployment descriptors...
|--|---|--- manifest.mf
|--|--- EJB classes
|--Util.jar
Util.jar must be executed in server side. If I just add Util.jar in client program's classpath, when client program is executed, serverside Util.jar is executed? Or what else I should do in the client program to reference server-side Util.jar?

Excellent question. I don't see any client-jar in your EAR file structure. So I am assuming you are writing a separate client application which will talk to the ejbs deployed as part of this EAR. You need to do the following:
Write another EAR file with the following structure:
ear:
META-INF/application.xml
util.jar
client.jar
client.jar should have a META-INF/MANIFEST.MF and that should contain Class-Path:util.jar and value for Main-Class attribute.
Now deploy this new ear to your application server and execute it using Application Client Container that comes with your app server.
If you don't want to write another EAR file, then bundle th client.jar in your original EAR file.
Points to note are:
you have to repackage util.jar again inside this ear file.
For portability reason, you should use Class-Path manifest entry in client.jar. Refer to http://java.sun.com/j2ee/verified/packaging.html and J2EE platform spec section #8.2.
Hope this helps,
Sahoo

How to access external JAR in EJB ?

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