Deployable External Library in NetWeaver Developer Studio 7.01.06

Question

I'm using SAP NetWeaver Developer Studio Version: 7.01.06 Build id: 201001061835
I need to make an External Library with some JARs inside. I've made an External Library component and I've created Assembly and Compilation public parts. After A LOT of attempts to make things work, I've resorted to using a custom build script to copy the JAR in the public part output folders. I've added the Compilation public part dependency in my Web Dynpro's Used DC list.
The Web Dynpro builds without errors.
Now the problem is that when I run the Web Dynpro application it gives me a ClassNotFound Error.
I've followed the instructions of many different guides and no one worked. I've found thousands of different procedures all to make the same thing and all of them differed in crucial parts. I'm stuck here with no ideas on how to make this ******* IDE to work.
I've tried to create an J2EE Server Component Library to which I've added the Assembly public part of the External Library but the GEN folder of the public part directory of J2EE SCL is empty! I have NO application*.xml files inside the J2EE SCL to edit.
If you're reading this and you're kind enough to help me, thank you.
Remember I have version 7.01.06.
Thank you again,
Pietro

Answer 1

Hi
Just out of curiosity, is your project of type DC?
If it is DC allow me to quote Mr Walter Kahn
The solution using DC's is very simple.
As a first step, undo all the stuff you have done up to now in this thread, including removing any build-time references, and deleting anything you entered in the application-xml files.  When you are back to a "clean" Web Dynpro DC, do the following:
Step 1: Create an External Library Development Component
1.1) Switch to Development Infrastructure perspective.
1.2) Create a new dc of type External Library  (eg. mycompany.com/downloadexcel/lib)
1.3) Switch to the Resource perspective when prompted and copy your JAR's to the libraries folder of the project.
1.4) View the Component Properties (Window -> Show View -> Component Properties)
1.5) Click the tab "Public Parts".
1.6) Add two public parts, one for COMPILATION and one for ASSEMBLY.  Give them names likeexport_excel_comp and export_excel_asbly
1.7) Right-click each public part, then click Manage Entities -> Archive  and select all the JAR's presented for selection.
1.8) Click the Permissions tab, and check Entity Forwarding Allowed.
Step 2: Create an Enterprise Application Development Component
2.1) Switch to Development Infrastructure perspective.2.
2.2) Create a new dc of type J2EE -> Enterprise Application (eg.mycompany.com/downloadexcel/ear)
2.3) Switch to the JavaEE perspective when prompted.
2.4) View the Component Properties (Window -> Show View -> Component Properties)
2.5) Click the Dependencies tab, and add a dependency to the DC created in Step 1.  Do not change any of the default options.
2.6) Click the Permissions tab, and check Entity Forwarding Allowed.
2.7) Click the Public Parts tab and create a new Public Part of type COMPILATION.  Give it a name, eg. pp_export_excel
2.8) Right-click this public part, choose Reference Entities and select the COMPILATION public part defined in step 1.6 above.
2.9) Right-click this dc, and do Development Component -> Build.
Step 3: Using the External Library in Your Web Dynpro Application
3.1) Switch to Web Dynpro perspetive.
3.2) View the Component Properties (Window -> Show View -> Component Properties)
3.3) Highlight your Web Dypro dc, and then in the Component Properties window select theDependencies tab.
3.4) Add a dependency to the dc created in Step 2.  Accept all default options.
3.5) Build and deploy the Web Dynpro dc.  If you have not changed any of the default options along the way, you will notice that the EAR of Step 2 also gets deployed.
Your Web Dypro dc should now compile correctly and also run on the server as expected.
Quoted from here.
You may also refer to my blog where I use external jars ....
regards
Yuval