Class in J2ee Library DC can't be found

Another Problem where I need your help.
I have a portal module Component, in this i have a class wich extends the AbstractPortalApplicatin and in the doContent i include a jsp wich i have written. In this JSP i need some logic. Cause the logic I need here is not only used by this component i want to outsource the class wich does the work.
So I created a java component in wich i wrote my class. Created 2 public parts, an api for build time and a sda public part.
After that i createt a j2ee libary dc, in wich I add the public sda part from the java component. The Api is only for Build Time of the portal Component.
In the portalapp.xml I created a private sharing reference to the j2ee library component. But the class cannot be resolved. I really don't know what i have done wrong....

I figured out that you need to move the folder over to the shared section or share every folder in you folder structure above the one you need to share!!!

Similar Messages

Where is "WebLogic J2EE Library "?

Hi, i want to extend Portal Administration Console, but when i do follow guide of oracle documentation, it seem not work.
Follow document : To copy a J2EE module to your web project:
1. In the Project Explorer, right-click the //web_project_name/WebLogic Deployment Descriptor > J2EE Libraries folder and then select Add Multiple.
2. In the Select WebLogic J2EE library, select the modules you need. The required administration console J2EE libraries are:
But i don't see where is WebLogic J2EE library. Can someone tell me where is it ? Thanks in advance and sorry for my bad English.
Best Regards,
Coy.

If you mean the folder 'library' like from the computer, the iphone doesn't have one directly. If you connect your iphone to your computer then, depending on what you want, you can probably do it via the computer or try downloading an app like iexplorer and you can access loads of hidden folders on your iphone. Hope this helps but sorry if it doesnt

How can you retieve a list of classes from the Library

Is it possible to retrieve a list of the Linkage or Export
Classes from a swf library dynamically?
I am building an application where I allow the user to load
an asset swf at runtime, then they can choose to load any Exported
class from the library of the swf. Currently it works if you know
the name of the asset, that you want to load, but I would like to
be able to bring up a chooser list of the assets, rather than
having to type the Class names.
So far I have only seen examples where "if you know the class
name you can load it", but nothing concerning pulling the list.
There must be a list somewhere in flash, I just want to tap into
that.

I saw this before and did not have a chance to go through it
completely.
As I was reading it, though it did not seem to be giving me
the answer, as they seem to extend the Export clips in the library
by extending the class.
I'll run through that and see.
It does give me another idea though.
(crazy) Idea:
What if I extend the loader class and add a method, kind of
like what they are doing on the document class of the loaded swf,
to pull the class names. They hard code in the class names into the
array though.... so that is the crux of the issue.
Somehow I think this concept is doomed to fail but, I will
also see if that is possible.
I suppose for the application, I could require that any user
would use a swf with a document class that has the getAssets()
method.... also has some problems .... namely dealing with the
issue of "what if they do not extend" and having it fail
gracefully.
oh well, food for thought... I will leave this open for now
and perhaps I will post some answer.

How do I create a runtime library reference from a J2EE library DC?

I've created a J2EE library DC that references some classes in an already deployed library. The referenced jar file has been correctly deployed, as it's successfully used by some other components. I can build the DC, since I've created created a compile-time reference to the local copy of the target jar file.
Unfortunately, I can't figure out how to create a runtime reference from my J2EE library to the already deployed library - there just doesn't appear to be any place to put the reference, at least using a gui-based function in NWDS. Unlike WebDynpro, which has a 'references' configuration option, J2EE lib's don't appear to have anything similar.
Where/How can I do this?
BTW, the Visual Administrator function 'ClassLoader Viewer ' is a very handy tool for diagnosing ClassDefNotFoundError errors....

Hello Ken,
well it seems to be not a trivial thing.
1) Build your library DC.
2) Create folder "server" in root DC folder "_comp".
3) Extract provider.xml from generated SDA file to "server" folder.
4) Add references in provider.xml:
 <references>
 <reference type="library" strength="weak">
 sapxmltoolkit
 </reference>
 <reference type="library" strength="weak">
 com.sap.lcr.api.cimclient
 </reference>
 <reference type="service" strength="weak">
 tc~sec~securestorage~service
 </reference>
 </references>
5) Rebuild DC. Deploy.
6) Enjoy!
Useful links:
http://help.sap.com/saphelp_webas630/helpdata/en/b5/22123b8d92294fac207283f3e8756e/content.htm
http://help.sap.com/saphelp_webas630/helpdata/en/09/5d963be736904c96cbdfe93793eb42/TEMPLATE_image002.gif
Best regards, Maksim Rashchynski

Deploy J2EE library failed

I'm trying to create a J2EE Library DC that contains a few jar files that I want to deploy to the J2EE server for usage by a set of test classes.
I created an external library DC, imported a jar file into the libraries folder, and added the jar file to a public part that has selected option "provides an API for Developing/compiling". I then built the DC Successfully.
Then I created a J2EE Library DC, and added the external library DC as a used DC, with a build and run time dependancy, and I created an entity reference to the external library DC's public part.
When I build the J2EE Library DC, the jar file are not included in the SDA file. Nothing I've tried can get the jar file to be placed in the SDA file for deployment.
Why is the jar file not in the SDA? What am I doing wrong? I've spent the last while reading everything I can find on SDN about j2EE Library DCs, and it seems that I'm doing everything correctly - or am I?
I'm running 7.00 SP9 . Can someone verify that a) my procedure above is correct, and b) that this does work under 7.00 SP9 ?

Hi,
Are you trying to depoy through SDM or visual admin?
SDM can recognize only SCA,SDA and ear files.
I think,you can do one thing,you can convert those jar files to ear format and deploy it through SDM or Visual admin.
You can do it this way,
Copy all those jar files into a folder .
For ex: if you have copied all those jar files into "new folder" in C:,
go to C:\newfolder in command prompt.
then run the command,
jar -cvf *
or
take each jar file and give command
jar -cvf nameofexe.exe *
then all the jar files will be converted into ear format and you can deploy through SDM or visualadmin.
reward points if helpful...........

Jars not included in J2EE Library DC SDA

I'm trying to create a J2EE Library DC that contains a few jar files (JUnit and JUnitEE) that I want to upload to the J2EE server for usage by a set of test classes.
I created an external library DC, imported the two jar files into the libraries folder, and added both jar files to both a compilation and assembly public part. I then built the DC. Great, the jar files are copied into the hierarchy under gen/default/public/assembly and gen/default/public/compliation. Everything seems to be in order.
I then created a J2EE Library DC, and added the external library DC as a used DC, with a build and run time dependancy.
When I build the J2EE Library DC, the two jar files are NOT included in the SDA file. Nothing I've tried can get the two jar files to be placed in the SDA file for deployment.
Why why WHY are the jar files not in the SDA? What am I doing wrong? I've spent the last while reading everything I can find on SDN about j2EE Library DCs, and it seems that I'm doing everything correctly - or am I?
I'm running SP16. Can someone verify that a) my procedure above is correct, and b) that this does work under SP16?
FYI, I have done this before, but not with SP16 - this is my first attempt. That said, I've always had problems getting the imported jar files to appear in the final SDA file....it's frustrating to say the least. DCs are wonderful things, but man, when they don't work, it's a royal pain in the rear end trying to figure out what's wrong.

Hmmm, perhaps this is part of the problem: here is the defLib.pp file which is automatically generated when you create a J2EE Library DC:
<?xml version="1.0" encoding="UTF-8"?>
<public-part ....>
 <name>defLib</name>
 <purpose>compilation</purpose>
 <caption></caption>
 <description></description>
 <entities>
 <entity>
 <name>sap.com~test~lib</name>
 <entity-type>SERVER_COMPONENTS</entity-type>
 </entity>
 </entities>
</public-part>
I created a new Server Library DC and changed the purpose to assembly, and then was able to create an entity reference. However, now I get this error:
createPublicParts:
[pppacker] Packing assembly public part 'defLib'
[pppacker] Packed 0 files for entity sap.com~zzz~lib (SERVER_COMPONENTS)
[pppacker] Packing entity reference zzz/jars (sap.com), assembly: ()
[pppacker] ERROR: java.util.zip.ZipException: Access is denied
(sigh)
I'm not sure what SP you're running, but perhaps the later SP's understand the structure of External Libraries, and automatically propagate the references for you....at least, that must be what was happening with SP15, since it worked properly.
I think I'll install SP15 again, and have close look at the generated public parts, and see if I can't detect a difference.

[SOLVED] ClassNotFoundException = j2ee library

hello community,
I have got a problem with an unresolved j2ee library.
the libraries are placed in a directory somewhere on the harddisk and i do not know how to reference them in the weblogic server (v10).
I guess that they need an entry in the deployment descriptors of the application designed to deploy.
Is there a option like a tag in the application-deployment-descriptor of the application where i can reference the directory with the libraries? Or do i have to make an entry for each library the application needs?
Thanks,
maik
#edit 1:
Can i specify a directory in the weblogic server deployment descriptor to search for the libraries?
such as:
<library-dir>{$app.home}/lib</library-dir>{$app.home} is a java option i've added in the start-script of the server (-Dapp.home=c:\app)
#edit 2:
or do I have to place the libraries needed under the WEB-INF of META-INF directory in the lib-directory of the application?
#edit 3:
I've found out that there is an extra server-start option -Dweblogic.ext.dirs for specifying other library-directories... but this does not work at all :-(
when copying the needed libraries to the lib directory of the weblogic domain the class bytes found but defineClass()failed for: error occurs.
are there any suggestions for solving?
Edited by sqlworktask at 10/30/2007 4:58 AM

ok, i've solved it...
i just have added following environment variable to the start-script of the server:
WEBLOGIC_EXTENSION_DIRS=<directories>

Yosemite many troubling system log messages: For example: com.swarmcast.mlbnexdefautobahn ;main class can't be found, iTunes msgs, location msgs, audit warnings

I'm receiving many concerning messages on my macbook pro:
MacBook Pro (Retina, Mid 2012)
2.6 GHz Intel Core i7
16 GB 1600 MHz DDR3
NVIDIA GeForce GT 650M 1024 MB
OS: Yosemite 10.10 (upgraded)
These messages start logging and never stop... 452 messages in 11 minutes.
11/11/14 11:17:33.878 AM MLBNexDefAutobahn[421]: main class can't be found.
11/11/14 11:17:23.680 AM com.apple.xpc.launchd[1]: (com.swarmcast.mlbnexdefautobahn) Service only ran for 0 seconds. Pushing respawn out by 10 seconds.
11/11/14 11:17:28.586 AM com.apple.xpc.launchd[1]: (com.apple.imfoundation.IMRemoteURLConnectionAgent) The _DirtyJetsamMemoryLimit key is not available on this platform.
11/11/14 11:17:28.809 AM locationd[58]: Couldn't find a requirement string for masquerading client /System/Library/PrivateFrameworks/Parsec.framework
11/11/14 11:17:16.944 AM storeassetd[388]: multibyte ASN1 identifiers are not supported.
11/11/14 11:17:32.853 AM _nsurlstoraged[417]: audit warning: soft /var/audit
11/11/14 11:17:32.853 AM _nsurlstoraged[418]: audit warning: allsoft
11/11/14 11:17:32.854 AM _nsurlstoraged[419]: audit warning: closefile /var/audit/20141111181659.20141111181732
11/11/14 11:17:34.221 AM com.apple.xpc.launchd[1]: (com.apple.imfoundation.IMRemoteURLConnectionAgent) The _DirtyJetsamMemoryLimit key is not available on this platform.
11/11/14 11:17:36.032 AM locationd[58]: Location icon should now be in state 'Inactive'
11/11/14 11:18:17.850 AM com.apple.usbmuxd[55]: LOCKDOWN_V2_BONJOUR_SERVICE_NAME is _apple-mobdev2._tcp,9336080d
11/11/14 11:17:37.092 AM iTunes[332]: Entered:_AMMuxedDeviceDisconnected, mux-device:2
11/11/14 11:17:37.092 AM iTunes[332]: Entered:__thr_AMMuxedDeviceDisconnected, mux-device:2
11/11/14 11:17:37.092 AM iTunes[332]: tid:dc0f - Mux ID not found in mapping dictionary
11/11/14 11:17:37.092 AM iTunes[332]: tid:dc0f - Can't handle disconnect with invalid ecid

This cleared up the MLBNexDefAutobahn message... not the rest however.
Get This MLBAutobahnNexDef Whasit off my Activity Monitor
1. Open your User folder.
2. Go to Library folder ( might need to press down option key when select Go to find Library)> Application Support > Swarmcast
3. Click UninstallAutobahn.command
Wait and pray. Phew! Gone. It'll probably open your Unix terminal.
[[EDIT: ACK! OSX Lion has hidden the Library folder. It's still there. TO find the User's Library folder in OSX, go to Finder and choose Go > Go to Folder... and type ~/Library in the box. ]]

New VideoTexture class can't be found

Hello,
I have been waiting for the videoTexture class for a long time and now it's been included with the new release of Air 17 sdk, but unfortunately I can't get it to work in my small test project. I read the release notes to find an answer for my issue with no luck at all, my problem is that Air 17 runtime can't find VideoTexture class and throws this error: VerifyError: Error #1014: Class flash.display3D.textures::VideoTexture could not be found.
It's really a simple project with 1 line only using Flasg Builder
package
 import flash.desktop.NativeApplication;
 import flash.display.Sprite;
 import flash.display3D.textures.VideoTexture;
 public class videoTextureTest extends Sprite
 public function videoTextureTest()
 trace("version="+NativeApplication.nativeApplication.runtimeVersion);
 var v:VideoTexture;
My working environment:
- iMac late 2013 with OSX 10.9 maverick 64-bit, 8GB RAM, 2.7 GHz Intel core i5, video card: Intel Iris Pro 1MB
- Flash Builder 4.6
- Desktop project
- Air 17.0.0.124 (flex developers) with Flex 4.6 merged
- swf-version=28 Compiler argument is set
- added <renderMode>direct</renderMode> in my xml discriptor
I have checked the runtime version with trace output, it's 17.0.0.124
I also ran a mobile version on my ipad mini 2 late 2013, same result: VideoTexture is no where to be found
Please help and thank you in advance

This cleared up the MLBNexDefAutobahn message... not the rest however.
Get This MLBAutobahnNexDef Whasit off my Activity Monitor
1. Open your User folder.
2. Go to Library folder ( might need to press down option key when select Go to find Library)> Application Support > Swarmcast
3. Click UninstallAutobahn.command
Wait and pray. Phew! Gone. It'll probably open your Unix terminal.
[[EDIT: ACK! OSX Lion has hidden the Library folder. It's still there. TO find the User's Library folder in OSX, go to Finder and choose Go > Go to Folder... and type ~/Library in the box. ]]

How to set runtime references in J2EE library DC's

Hi,
I'm building an custom logon module. This is well described in
http://help.sap.com/saphelp_nw04/helpdata/en/46/3ce9402f3f8031e10000000a1550b0/content.htm
I created the following DC:
1. simple java project DC that contains the login module class
2. J2EE library DC that will act as the deployable component.
The part "Make reference to the Security Provider service of the J2EE Engine." (2b) is where i get stumped:
http://help.sap.com/saphelp_nw04/helpdata/en/bf/93d84072378031e10000000a1550b0/content.htm
The example adds the reference direct to the provider.xml. I don't have that option when I develop the library as a DC.
It seems that while EAR file DC's allow the adding of runtime library references via the application-j2ee.xml file, it seems that is not possible for J2EE library DCs.
Specifically, I'm trying to get the follwing entry into the provider.xml:
<references>
<reference provider-name="sap.com" strength="weak" type="interface">security_api</reference>
I saw one workaround in the SDN where they suggest to extract the provider.xml from the SDA and manually
add the references but this isn't really an option in our case.
Should I be deploying 'normal' EAR files in this case ? Have I overlooked something ?
thanks
Michael

Hi,
talk about overlooking the obvious . . . The appropriate public part is present in com.sap_SAP-JEE_1.
Adding that worked.
Michael

BEA WL9.2 NoClassDefFoundError when instantiating class in EAR library

I'm having a problem in BEA Weblogic 9.2 with a NoClassDefFound error that has me stumped.
To test the problem, I created a very simple web service project and the associated EAR project which is then deployed to a simple domain. Within the web service project I defined an Interface, and then a class that implements that interface. I have a single web method which when called uses the Class.forName() method to instantiate an instance of the implementing class and then run the sayHello method of the class. This all works great, as it should.
Next I created a new java project which contains another class which implements the interface defined in the webservice project. I built this class into a jar file, and added the jar file into the EAR project library directory so that it shows up as a referenced library to the web service project. In the original web method I added code to again use the Class.forName() method to this time get an instance of the implementing class defined in the jar file. When I run the method this time, a java.lang.NoClassDefFoundError is thrown trying to instantiate the new class. I thought that because the jar file with the class is included in the project EAR, that the web service would see that class in it's classpath, but clearly that's not happening. I have a feeling I'm probably forgetting something real simple, but I can't figure out what it could be right now.
Any help solving this problem would be greatly appreciated. Thanks in advance.

Thanks for the suggestions, unfortunately I'm still struggling with the problem.
First, let me clarify a couple of things brought up by the other posters. The jar file containing my implementation of an interface is being placed in the EAR's APP-INF/lib directory. I'm developing the test program in Weblogic Workshop 9.2. Workshop is built around an earlier version of Eclipse so in most ways I am using Eclipse as a development tool, but only through the official Weblogic Portal 9.2 release that includes Workshop. I am not using the 'Oracle Enterprise Pack for Eclipse'. What I am trying to do gets a bit confusing to explain, but in reality is a very simple thing that I find hard to believe is causing me problems. The reason I posted this problem in the Weblogic Server forum is that what I'm trying to do works perfectly if I'm just using multiple java projects importing implementing classes from other jars. The problem only occurs when I move the problem into a web service project.
As I've done some more experimenting I've found some more interesting behavior. I created a new Interface in the library project, as well as an implementation of this new interface. Again I copied this library into the EAR's APP-INF/lib directory, and then in the webservice project created another class that implements the new interface. Back in my web-method, I added code to try and instantiate instances of each of the new implementing classes. Works perfectly. The problem only occurs when the Interface is defined in the webservice and the implementing class is defined in the library. All other instances seem to work fine. The error thrown is a NoClassDefFoundError, and the class that it says it can't find is the Interface class. Again, the Interface class is defined in the webservice src, and the application has no trouble finding that class if I try and instantiate an implementing class that is also defined in the webservice src. It's only when I try and instantiate a class defined in a referenced library that the error occurs.
This should be a very easy problem to re-create, and I have a test project that I can provide if anyone's willing to take a look. Again, any help or suggestions would be greatly appreciated.

How to refer to J2EE library server component from a web service?

Hi,
I need help! I created a web service and it worked fine. However, I started having problems when I tried to use java classes from my deployable J2EE library server component. I got the NoClassDefFound error.
I tried to include the library DC in the Used DC list and put the reference of it in the web service deployment descriptor xml (application.xml and application-j2ee-engine.xml), but it did not work.
How do I refer and use java classes from my deployable J2EE library at run time from my web service application? What should I do?
Thanks,
Giavinh Pham

I would like to clarify more about the web service project. I created a Java DC project and converted it into a web service as the SAP manual instructions. It worked fine by itself, but I now want to use some of my classes that I deployed as a J2EE library server component.
It was compiled and built when I refer to my J2EE library server component DC in the UsedDC. It was deployed fine as well. However, it broke when I tested the web service calls. The class declarations and usage from the J2EE server component could not be found (NoClassDefFound error.)
I thought it was because I did not have an application-j2ee-engine.xml in my META-INF folder so I created one and referred to the library in xml as type library and reference 'strong'. I built and deployed again. It still did not work.
I examined the EAR and noticed that there were two parts of the EAR. One is the WSAR archive file that contains the META-INF folder from my project and other web service assemblies. The other part is the META-INF folder generated by the SAP NetWeaver IDE.
The strange thing was that SAP NetWeaver IDE generated an application-j2ee-engine.xml without any reference to my J2EE library server component. However, the nested application-j2ee-engine.xml in the WSAR archive file did contain the info.
Since I cannot control the application-j2ee-engine.xml generated by SAP NetWeaver IDE, what should I do? Is it the cause for my problem?
Please advice, anyone?
Giavinh

How to use own J2EE library withon WAR/EAR?

Hi,
I've written a servlet within a WAR that uses for example JCo-Conenction. For that. I've added com.sap.mw.jco as "Used DC" in the WAR-Metadata. Additionally, I've added the DC in the EARs application-j2ee-engine.xml
<reference reference-type="hard">
<reference-target provider-name="sap.com"
target-type="library">com.sap.mw.jco</reference-target>
</reference>
Everything is fine so far. But now, I want to use a self-created J2EE-Library DC that is deployed on the server.
I've added it to the WARs "Used DC"s as well and added it to the EARs application-j2ee-engine.xml. But the servlet is not loaded during deploy. It fails with the error "NoClassDefFound: <class i have in my J2EE-Library project>"
is there anything more to do for self-created J2EE-Libs?
kr, achim

Marc,
I've solved it already. I've added indeed the wrong DC ("libs/servicelibs" instead of "libs/servicelibs_j2ee"). Well, bad naming conventions, it was late and I have the flu...
Anyway, thanks for supporting me, that all what I did was correct
kr, achim

How to delete a J2EE library from the WAS?

Hello,
I have uploaded a J2EE library to the WAS, it can be found at the Admin tool under: Server->Libraries.
Suppose I don't need these library anymore and I would like to delete it. How do I do it?

Hi Roy,
It depends on which server you are asking for, for Netweaver 2004 and 2004s the easiest way to deploy\undeploy components would be via the SDM UI - launch it from \usr\sap\<sid>\<id>\SDM\program\RemoteGui .
There from the undeployment tab you should see your library, then click the select button, start undeployment and follow the instructions.
You may check the SDM documentation as well - it should be in a doc directory
HTH
Peter

WDException from J2EE Library ?

Hello,
I have a shared j2ee library implementing some java beans that follow the JavaBean, command bean pattern, business delegate and DTO's patterns.
I am using these from webdynpro component as an imported model (javabean model).
Now I want to follow SAP recommendation that bean exceptions (if any) shall be wrapped to WDException types (see WebDynpro Best Practices for Connecting To Java API's).
I have found no way to make this kind of exception visible from my J2EE Library. In fact class com.sap.tc.webdynpro.services.exceptions.WDException is only found in WebDynpro Runtime Service and not in any shared library. I am not willing to deploy in my library an additional copy of webdynproservices.jar because it is version related.
What is the correct way to achieve this?
I am on NW04 SP17.
Thanks in advance & Regards
Vitaliano Trecca

Hello,
is their any solution for this problem?
I tried to use an own Bean-class from my J2EE-App,
but the JSP-Page returned "package <mypackage> does not exist".
The JSPDynPage is able to get the Bean.
same mechanism as shown above (SharingReference in portalapp.xml)
We are on SP17
Thanks in advance,
Thomas

Class in J2ee Library DC can't be found

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