Java SSF Library - interface ISsfData and class SsfDataXML

Hello all,
Can anybody tell me in which Java library I can find the interface ISsfData and class SsfDataXML used in the following example (see link)?
http://help.sap.com/saphelp_nw70/helpdata/EN/a4/d0201854fb6a4cb9545892b49d4851/frameset.htm
Which JAR file(s) contain these libraries? It is described as the Java SSF Library...
I would like to copy this file locally and add it as an External Library to an Eclipse project.
Many thanks,
Aldo

Hi Aldo,
The java packages where this classes and interfaces are implemented are:
- com.sap.security.api.ssf
- com.sap.security.core.server.ssf
You can find this in the jar file tc_sec_ssf.jar.
Also look the following SAP Help link [Secure Store and Forward Mechanism (SSF)|http://help.sap.com/saphelp_nw2004s/helpdata/en/4d/bf6f77a2c5446a86e0152f1b309db6/frameset.htm]
Please reward if helpful.
Regards
Alexandre

Similar Messages

Java SSF for Digital Signatures and Document Encryption

Hello,
I have read in "SAP Help - Java Development Manual" that there is a Java SSF library for Digital Signatures and Document Encryption API.
http://help.sap.com/saphelp_nw04s/helpdata/en/4f/65c3b32107964996a56e4165077e24/frameset.htm
I am trying to develop an example application in NWDS using Interfaces/classes (ISsfData, SsfDataXml...), but NWDS does not find this classes in any library.
I have searched for Javadocs in NWDS plugins directory and this classes and interfaces should be in JAR com.sap.security.api.jar, but they aren't there.
Our WAS version is: NW04s WAS 7.0 SP11 and he have downloaded Java Crypto Library (IAIK) and also SAP XML Toolkit.
Does anyone know how to find or obtain this library?
Thanks in advance,
Jorge Linares

Hello Francesco,
I want to generate a digital signature (PKCS#7,XML) using SAP SSF API as explained in
http://help.sap.com/saphelp_nw04/helpdata/en/4f/65c3b32107964996a56e4165077e24/content.htm and in Amol Joshi's reply in
Digital Signatures and Document Encryption api
so my question is From which PI/XI version and its SPS this SAP SSF LIBRARY is supported ?
Kind Regards,
Kubra fatima.

Java SSF library

We are trying to use SSF ( digital signatures ) as authentication mechanism for Archive Link through HTTP Interface.ABAP code is generating PKCS#7 signed URL and we want to verify it using Java SSF library in an external system.SAP documentation talks about JAVA IAIK toolkit can be downloded from Service market place. I can't find it on service.sap.com. Does anybody know where can I download JAVA SSF from ?
cheers
Ramesh.

Hi Aldo,
The java packages where this classes and interfaces are implemented are:
- com.sap.security.api.ssf
- com.sap.security.core.server.ssf
You can find this in the jar file tc_sec_ssf.jar.
Also look the following SAP Help link [Secure Store and Forward Mechanism (SSF)|http://help.sap.com/saphelp_nw2004s/helpdata/en/4d/bf6f77a2c5446a86e0152f1b309db6/frameset.htm]
Please reward if helpful.
Regards
Alexandre

Difference between interface pool and class pool

Hi,
Can any body tell me the difference between Interface pool and Class pool.
thank you in advance.
regards

Hi,
Class and Interface Pools
This section discusses the structure and special features of class and interface pools for global classes.
Global Classes and Interfaces
Classes and interfaces are object types. You can define them either globally in the Repository or locally in an ABAP program. If you define classes and interfaces globally, special ABAP programs called class pools or interface pools of type K or J serve as containers for the respective classes and interfaces. Each class or interface pool contains the definition of a single class or interface. The programs are automatically generated by the Class Builder when you create a class or interface.
A class pool is comparable to a module pool or function group. It contains both declarative and executable ABAP statements, but cannot be started on its own. The runtime system can create runtime instances (objects) through a request using the CREATE OBJECT statement. These objects execute the statements of the class pool.
Interface pools do not contain any executable statements. Instead, they are used as containers for interface definitions. When you implement an interface in a class, the interface definition is implicitly included in the class definition.
Structure of a Class Pool
Class pools are structured as follows:
Class pools contain a definition part for type declarations, and the declaration and implementation parts of the class.
Differences From Other ABAP Programs
Class pools are different from other ABAP programs for the following reasons:
·        ABAP programs such as executable programs, module pools, or function modules, usually have a declaration part in which the global data for the program is defined. This data is visible in all of the processing blocks in the program. Class pools, on the other hand, have a definition part in which you can define data and object types, but no data objects or field symbols. The types that you define in a class pool are only visible in the implementation part of the global class.
·        The only processing blocks that you can use are the declaration part and implementation part of the global class. The implementation part may only implement the methods declared in the global class. You cannot use any of the other ABAP processing blocks (dialog modules, event blocks, subroutines, function modules).
·        The processing blocks of class pools are not controlled by the ABAP runtime environment. No events occur, and you cannot call any dialog modules or procedures. Class pools serve exclusively for class programming. You can only access the data and functions of a class using its interface.
·        Since events and dialog modules are not permitted in classes, you cannot process screens in classes. You cannot program lists and selection screens in classes, since they cannot react to the appropriate events. It is intended to make screens available in classes. Instead of dialog modules, it will be possible to call methods of the class from the screen flow logic.
Local Classes in Class Pools
The classes and interfaces that you define in the definition part of a class pool are not visible externally. Within the class pool, they have a similar function to local classes and interfaces in other ABAP programs. Local classes can only be instantiated in the methods of the global class. Since subroutines are not allowed in class pools, local classes are the only possible modularization unit in global classes. Local classes have roughly the same function for global classes as subroutines in function groups, but with the significant exception that they are not visible externally
Reward points if useful....
Regards
AK

Java-JSP working with packages and classes

Hi everybody,
I'm bearly new on Java-JSP developping and I wanted to know how Tomcat (for example) manage the imported packages and classes.
The fact is I'm working on a project ('/bob') which use some packages that I don't see in the '/bob' directory. So, is that possible that '/bob' is downloading packages and classes from Internet to '/bob/download' virtual repertory and use it? If it is true, is it possible to override this download by making '/bob' project using local packages or classes (example : com.boblibrary.classes.util in '/bob/WEB-INF/classes/com/boblibrary/classes/util') instead of downloading it?
Therefore, the '/bob' project is using bugged classes (that I think it downloads from Internet) which I can't correct.
Thanks for your help.
- Renaud

Thank you for your answer, but I can't imagine where is physicaly the class that my project use and show me as http://localhost:8080/atlassian-jira-3.13.2/download/ressources/br.com.ecore.jira.plugin.projectViewPlugin:ProjectViewTabPanel/js/projectviewtabpanel.js. Where is that Javascript file suppose to be on my hard drive? Or where is that class 'br.com.ecore.jira.plugin.projectViewPlugin' suppose to be on my hard drive? If it is not dowloaded from the Internet.
I have no trace of that class on 'atlassian-jira-3.13.2/', neither on 'jdk1.6.0_18/', 'jre6/' or 'apache-tomcat-5.5.28/common/classes/'.
Thanks.

Why java file name and class name are equal

could u explain why java file name and class name are equal in java

The relevant section of the JLS (?7.6):
When packages are stored in a file system (?7.2.1), the host system may choose to enforce the restriction that it is a compile-time error if a type is not found in a file under a name composed of the type name plus an extension (such as .java or .jav) if either of the following is true:
* The type is referred to by code in other compilation units of the package in which the type is declared.
* The type is declared public (and therefore is potentially accessible from code in other packages).
This restriction implies that there must be at most one such type per compilation unit. This restriction makes it easy for a compiler for the Java programming language or an implementation of the Java virtual machine to find a named class within a package; for example, the source code for a public type wet.sprocket.Toad would be found in a file Toad.java in the directory wet/sprocket, and the corresponding object code would be found in the file Toad.class in the same directory.
When packages are stored in a database (?7.2.2), the host system must not impose such restrictions. In practice, many programmers choose to put each class or interface type in its own compilation unit, whether or not it is public or is referred to by code in other compilation units.

To view database Java Source and Class code in SQL Developer - Do this...

I've wanted something like this for a while.. Hope this helps someone else...
Make a master detail report...
1. Click the reports tab.
2. Right click on "user defined reports" and select "add report"
3. Type "Java Source Object and Class Code" into the name field.
4. Make sure "Style" is set to "Table".
5. Paste this code into the "SQL" window.
select OBJECT_NAME, OBJECT_TYPE, to_char(created,'DD-MON-YYYY HH24:MI:SS') Created, to_char(LAST_DDL_TIME,'DD-MON-YYYY HH24:MI:SS') "Last DDL", STATUS
     from user_objects
    where object_type in ('JAVA SOURCE')
    order by object_name6. Click "Add child"
7. Make sure "Style" is set to "Code" in the child.
8. Paste the following code into the SQL window of the child.
select text from user_source where name = :OBJECT_NAME order by line9. Click Apply..
10. Enjoy...
no semicolons after the sql....
Message was edited by:
slugo

Mark,
Thanks Check this out people can now subscribe to the public reports out no the exchange.
http://krisrice.blogspot.com/2007/10/marks-post-on-forums-got-me-to-do.html
-kris

Verifying .java and .class files match

I have a bit of a strange situation in a team-working environment where many developers copy code to a production server. None of this code is in a Version Control System and I have been given the task of getting it into one (I've chosen Subversion, but that isnt important)
The problem is, its not as simple as doing a full commit of the production server because developers may have copied edited .class files onto the server, but not copied edited .java (therefore the .java file is not the same as the .class file)
Because the server has hundreds (if not thousands) or java and class files, I cant just decompile each of the class files and manually see if they match the java files, so I'm asking, is there a tool that can verify a java file matches a class file of the same name in terms of version (or if not is there an easier way of doing it than the decompile method)?
Thanks in advance

Years ago I had to do something very much like this...and now I'm trying to recall how we did it (and for that matter whether it worked)...and I'm having trouble recalling. Ah, that's what happens when you read forums out of insomnia.
Of course, you can do a baseline check by just checking the file timestamps. Also instead of decompiling the class files you can try re-compiling the source code, and then generating checksums on both class files to see if they're the same.
You might be able to use BCEL (http://jakarta.apache.org/bcel/) to extract some useful information out of the class files. As I recall I tried this but the data wasn't useful for this kind of project, but maybe I'm misremembering. It's worth looking into.

Could not find .java and .class files...

I am working on Windows Vista operating system.
I am able to access the .java which I created and also .class files from the command prompt.
But I am not able to find those files in the bin folder in Windows Explorer.
I want to delete some .java and .class files. When I use the delete command on the command prompt , I am getting ---- could not find the file.
Can anyone help me...

Hey everyone,
I found the answer!
If the command prompt application is run as administrator(since it is windows vista), the created .java files as well as .class files will be stored and can be seen in the bin folder.
However, I could not locate the .java files (and also corresponding .class files) which I created previously.

Error Message like Illegal Start of Type,and Class interface and enum expec

import java.applet.*;
import java.awt.*;
//Inheriting the Applet class with firstApplet class
public class firstApplet extends Applet{
     private Button reset,submit;
     private TextArea addr;
     private TextField name,addr,sex,mar;
     Panel p=new Panel();
     Choice m_choice = new Choice();
     Label namel=new Label("Name");
     Label addrl=new Label("Address");
     Label sexl=new Label("Sex");
     Label marl=new Label("Maital");
     //In it function
public void init()
     setLayout(new FlowLayout());
     add(m_choice);
     m_choice.addItem("Select Mode");
     m_choice.addItem("Create");
     m_choice.addItem("Edit");
     m_choice.addItem("Delete");
     m_choice.addItem("Search");
     add(namel);
     name=new TextField(20);
     add(name);
     add(addrl);
     addr=new TextArea(5,20);
     add(addr);
     add(sexl);
     sex=new TextField(10);
     add(sex);
     add(marl);
     mar=new TextField(20);
     add(mar);
     submit =new Button("Submit");
     add(submit);
     reset =new Button("Reset");
     add(reset);
     t=new TextField(30);
     add(t);
public boolean action(Event e,Object o){
     if (e.target instanceof Button){
               String s= (String)o;
               if(s.equals ("Submit"))
                    t.setText("Error Occured While Saving to the database");
               else if (s.equals("Reset")){
                    name.setText("");
                    addr.setText("");
                    sex.setText("");
                    mar.setText("");
                    t.setText("");}
               return true;
     else
          return false;
}I this program while compiling i am getting the above specified.This is the Code i used.At that Bolded else and return false lines are showing as error lines.Why this error is coming?Pls send help me with some hint,Because i am new to Java.

Be consistent about your placement of {} and use of indentation. Sun's code
conventions provide an example: http://java.sun.com/docs/codeconv/html/CodeConvTOC.doc.html

To know abt java packages and classes

please give an idea abt how to find the list of packages and classes
available in the java packages

Which ones? If you mean the ones available in the standard Java APIs, check the java-docs:
1.4.2:
http://java.sun.com/j2se/1.4.2/docs/api/
1.5:
http://java.sun.com/j2se/1.5.0/docs/api/

Using the 'java.sound.*' libraries and classes

Hello,
I am a complete noob to Java. So please forgive me if I seem a little stupid in the things I ask.
I would like to know which development kit I should download to be able to gain access to the 'java.sound.*' and midi libraries and classes.
I downloaded the Java SE 6 SDK but I could get access to these classes.
I use JCreator as my compiler and I kept getting an error along the lines of 'java.sound.* package does not exist'. I have tried compiling the code with NetBeans and also wiuth Eclipse and I still have no luck and I get the same message. I am guessing the compiler is not the problem and it is the SDK as I can access other classes such as javax.swing and java.awt etc.
If you could give me a link to the relevant SDK and maybe a good compiler, it would be greatly appreciated.
Also I am using Windows XP and Windows Vista so if you could provide me with support for either of these operating systems then that would be great.
Thank You
Lee

Here's the code for an SSCCE (Small Self Contained Compilable Example) of a working java sound application. If you don't provide a file name, It does expect you to have a wave file of Ballroom Blitz in your javatest directory, but doesn't everybody?
To build and run it do:
javac -cp . SoundPlayer.java
java -cp . SoundPlayer yourWaveFile.wav
import java.io.*;
import javax.sound.sampled.*;
import javax.sound.sampled.DataLine.*;
public class SoundPlayer implements LineListener
     private float bufTime;
     private File soundFile;
     private SourceDataLine line;
     private AudioInputStream stream;
     private AudioFormat format;
     private Info info;
     private boolean opened;
     private int frameSize;
     private long frames;
     private int bufFrames;
     private int bufsize;
     private boolean running;
     private boolean shutdown;
     private long firstFrame, lastFrame;
     private float frameRate;
     private long currentFrame;
     private float currentTime;
     private Thread playThread;
     // constructor, take a path to an audio file
     public SoundPlayer(String path)
          this(path, 2);     // use 2 second buffer
     // or a path and a buffer size
     public SoundPlayer(String path, float bt)
          this(new File(path),bt);
     public SoundPlayer(File sf)
          this(sf, 2); // use 2 second buffer
     public SoundPlayer(File sf, float bt)
          bufTime = bt;          // seconds per buffer
          soundFile = sf;
          openSound();
     private void openSound()
          System.out.println("Opening file"+soundFile.getName());
          try
               firstFrame = 0;
               currentFrame = 0;
               shutdown = false;
               running = false;
               stream=AudioSystem.getAudioInputStream(soundFile);
               format=stream.getFormat();
               if(format.getEncoding() != AudioFormat.Encoding.PCM_SIGNED)
                    System.out.println("Converting Audio stream format");
                    stream = AudioSystem.getAudioInputStream(AudioFormat.Encoding.PCM_SIGNED,stream);
                    format = stream.getFormat();
               frameSize = format.getFrameSize();
               frames = stream.getFrameLength();
               lastFrame = frames;
               frameRate = format.getFrameRate();
               bufFrames = (int)(frameRate*bufTime);
               bufsize = frameSize * bufFrames;
               System.out.println("frameRate="+frameRate);
               System.out.println("frames="+frames+" frameSize="+frameSize+" bufFrames="+bufFrames+" bufsize="+bufsize);
               info=new Info(SourceDataLine.class,format,bufsize);
               line = (SourceDataLine)AudioSystem.getLine(info);
               line.addLineListener(this);
               line.open(format,bufsize);
               opened = true;
          catch(Exception e)
               e.printStackTrace();
     public void stop()
          System.out.println ("Stopping");
          if(running)
               running = false;
               shutdown = true;
               if(playThread != null)
                    playThread.interrupt();
                    try{playThread.join();}
                    catch(Exception e){e.printStackTrace();}
          if (opened) close();
     private void close()
          System.out.println("close line");
          line.close();
          try{stream.close();}catch(Exception e){}
          line.removeLineListener(this);
          opened = false;
     // set the start and stop time
     public void setTimes(float t0, float tz)
          currentTime = t0;
          firstFrame = (long)(frameRate*t0);
          if(tz > 0)
               lastFrame = (long)(frameRate*tz);
          else lastFrame = frames;
          if(lastFrame > frames)lastFrame = frames;
          if(firstFrame > lastFrame)firstFrame = lastFrame;
     public void playAsync(float start, float end)
          setTimes(start,end);
          playAsync();
     // play the sound asynchronously */
     public void playAsync()
          System.out.println("Play async");
          if(!opened)openSound();
          if(opened && !running)
               playThread = new Thread(new Runnable(){public void run(){play();}});
               playThread.start();
     public void play(float start, float end)
          setTimes(start,end);
          play();
     // play the sound in the calling thread
     public void play()
          if(!opened)openSound();
          if(opened && !running)
               running = true;
               int writeSize = frameSize*bufFrames/2; // amount we write at a time
               byte buf[] = new byte[writeSize];     // our io buffer
               int len;
               long framesRemaining = lastFrame-firstFrame;
               int framesRead;
               currentFrame=firstFrame;
               System.out.println("playing file, firstFrame="+firstFrame+" lastFrame="+lastFrame);
               try
                    line.start();
                    if(firstFrame > 0)
                         long sa = firstFrame * frameSize;
                         System.out.println("Skipping "+firstFrame+" frames="+sa+" bytes");
                         while(sa > 0)sa -= stream.skip(sa);
                    while (running && framesRemaining > 0)
                         len = stream.read(buf,0,writeSize); // read our block
                         if(len > 0)
                              framesRead = len/frameSize;
                              framesRemaining -= framesRead;
                              currentTime = currentFrame/frameRate;
                              if(currentTime < 0)throw(new Exception("time too low"));
                              System.out.println("time="+currentTime+" writing "+len+" bytes");
                              line.write(buf,0,len);
                              currentFrame+=framesRead;
                         else framesRemaining = 0;
                    if(running)
                         line.drain();                     // let it play out
                         while(line.isActive() && running)
                              System.out.println("line active");
                              Thread.sleep(100);
                         shutdown = true;
                    running = false;
               catch(Exception e)
                    e.printStackTrace();
                    shutdown = true;
                    running = false;
               if(shutdown)
                    close();
     // return current time relative to start of sound
     public float getTime()
          return ((float)line.getMicrosecondPosition())/1000000;
     // return total time
     public float getLength()
          return (float)frames / frameRate;
     // stop the sound playback, return time in seconds
     public float pause()
          running = false;
          line.stop();
          return getTime();
     public void update(LineEvent le)
          System.out.println("Line event"+le.toString());
     // play a short simple PCM encoded clip
     public static void playShortClip(String fnm)
          java.applet.AudioClip clip=null;
          try
               java.io.File file = new java.io.File(fnm);     // get a file for the name provided
               if(file.exists())                    // only try to use a real file
                    clip = java.applet.Applet.newAudioClip(file.toURL()); // get the audio clip
               else
                    System.out.println("file="+fnm+" not found");
          catch(Exception e)
               System.out.println("Error building audio clip from file="+fnm);
               e.printStackTrace();
          if(clip != null)     // we may not actually have a clip
               final java.applet.AudioClip rclip = clip;
               new Thread
               (new Runnable()
                         public void run()
                              rclip.play();
               ).start();
     public boolean isOpened()
          return opened;
     public boolean isRunning()
          return running;
    public void showControls() {
        Control [] controls = line.getControls();
        for (Control c :controls) {
            System.out.println(c.toString());
    public void setGain(float gain) {
        FloatControl g = (FloatControl) line.getControl(FloatControl.Type.MASTER_GAIN);
        g.setValue(gain);
    public static void main(String [] args) {
        float gain = 0;
        String file = "c:\\javatest\\BallroomBlitz.wav";
          for(String arg : args) {
            for(int i = 0; i < arg.length(); i++) {
                char c = arg.charAt(i);
                if (c == '-') {
                    gain -= 1;
                } else if (c == '+') {
                    gain += 1;
                } else {
                         file = arg;
        SoundPlayer sp = new SoundPlayer(file);
        sp.showControls();
        System.out.println("setting gain to " + gain);
        sp.setGain(gain);
        sp.play();
}

Where can I find java algorithms and classes

Does anyone here know about places on the net where you can download algorithms and classes written in Java?
I am looking for a method/class that is able to do the following:
Given a mispelled word. Find the word in a word list that best matches this word.
Obviously simple wildcards isn't going to cut it.

Your best bet would probably be to implement the Soundex or Metaphone algorithms. They're frequently used for word-matching.
The SOUNDEX algorithm is an algorithm used to convert words into a 1 character, 3 digit code that can be used for phonetic comparisons. More on it can be found at http://www.myatt.demon.co.uk/sxalg.htm
Metaphone has better performance.

[svn] 4081: Remove @private from an interface and class

Revision: 4081
Author: [email protected]
Date: 2008-11-12 06:50:02 -0800 (Wed, 12 Nov 2008)
Log Message:
Remove @private from an interface and class
QE Notes: None
Doc Notes: None
Bugs:
Modified Paths:
flex/sdk/trunk/frameworks/projects/framework/src/mx/controls/listClasses/ListBaseContentH older.as
flex/sdk/trunk/frameworks/projects/rpc/src/mx/messaging/messages/ISmallMessage.as

System.arraycopy()
You're almost certainly better off with a List implementation, though. Whether you use LinkedList or ArrayList should depend on your usage specifics, but from the limited information provided it seems that LinkedList would be a better choice.

WebLogic 11g EAR EJB Classpath and class loaders

All,
I have been having issues migrating Spring based EJB applications from OC4J to WebLogic 11g (10.3.1). I have been in communication with Oracle who has suggested a work around however I am keen to see if anyone else can suggest a solution.
The application is dependant on stateless session EJB beans that communicate with a Spring managed service tier to perform the business logic and database access. PitchFork is used to inject the Spring managers into the EJB’s using the spring-ejb-jar.xml configuration file. Note originally I was using the SpringBeanAutowiringInterceptor however I could not get this to work. See WebLogic 11g and Spring beens injected into EJB for details.
When the application is deployed packaging all the dependant jars within the APP-INF\lib folder I get a verity of errors from the following InvalidClassException, NoSuchMethodError, AbstractMethodError and IllegalArgumentException. I am using Spring 2.5.3 to match the supported WebLogic version. Note within the EAR application.xml the library-directory is set to APP-INF/lib. The issue appears to be Spring, PitchFork, commons-logging and aspectj libraries are being loaded form WebLogic and do not have visibility on jars within the application or have been modified when bundled for WebLogic. An example of this is the PitchFork jar within WebLogic has been changed excluding the spi package resulting in java.lang.ClassNotFoundException: org.springframework.jee.spi.PitchforkUtilsImpl errors.
Moving the jars to the domain library path does not resolve any of the issues. I have been unable to successfully deploy the application picking up the application jars using the prefer-application-packages configuration.
Oracle has advised me to deploy the libraries into the WebLogic system classpath by modifying the startWebLogic command to load the libraries into the classpath. I am concerned that modifying the system classpath will result in an unstable WebLogic server as I will be replacing modified jar files packages with WebLogic (such as PitchFork). This will also limit the applications that can be deployed within the server as each application must use the same libraries and versions (as the application ibraries are leing ignored).
Has anyone else hit this issue and corrected it? Can anyone think of an alternative solution?
Regards
Neil

Hi,
I am in the process of updating the tracking bug# 331569 with copies of the eclipse EAR/WAR projects and the EAR for these scenarios. Here are some details on how I got past the 2nd CCE on the org.eclipse.persistence.jpa.PersistenceProvider class (not the javax one)
https://bugs.eclipse.org/bugs/show_bug.cgi?id=331569
Essentially an SE persistence unit running both JPA 2.0 api and the 2.0 XSD schema work fine. I will next retest the EE case with variations of the 3 types of injection on the SSB or Servlet.
Update: There are 3 (possibly 4) issues here (all of these may become obsolete when the next WLS version ships)Initially I got the same 2.0 schema error and the ClassCastException on org.eclipse.persistence.jpa.PersistenceProvider
It turns out that my import of the 2 eclipse projects from my bug # 296271 for WebLogic 10.3.2.0 lost their facets(specifically the dynamic web facet) because I associated them with a different WebLogic 10.3.3.0. - this caused the CCE I was experiencing like Sri.
Anyways, after creating an EAR/Web project combination from scratch in eclipse associated with the 10.3.3.0 instance - I predeployed/deployed/ran fine - even with the 2.0 schema - in SE bootstrap mode (no EE yet).
Reproduction Procedure:
redoing project from scratch as I noticed that the war was not at the root of the ear - it was a jar in the app-inf/lib dir - my imported eclipse project was not referenced correctly as a web module facet- create empty EAR and WAR project with references
- download and open my EAR and WAR project code from bug # 296271
https://bugs.eclipse.org/bugs/show_bug.cgi?id=296271
- do essentially all the steps in the page below (I paraphrase for re-verification)
http://wiki.eclipse.org/EclipseLink/Development/JPA_2.0/weblogic#DI_1.1:_Alternative_3:_Application_Level_Shared_Library_-InUse
- copy applicationService, entity and FrontController servlet code into new projects
- create persistence.xml and MANIFEST.MF manifest in src\META-INF
- update manifest
Class-Path: APP-INF/lib/eclipselink.jar
APP-INF/lib/javax.persistence_2.0.0.v200911041116.jar
- copy both javax.persistence 2.0 and eclipselink 2.x jars to APP-INF/lib
- change ordering of WebLogic library modules classpath reference (javax.persistence 1.0) to ear reference (2.0 version)
- update web.xml with servlet tags
- update weblogic.xml with new context root
- make the persistence unit name the same in persistence.xml and ApplicationManagedService
- update weblogic-application.xml with prefer-application-packages overrides
<wls:prefer-application-packages>
<wls:package-name>javax.persistence.*</wls:package-name>
<wls:package-name>org.eclipse.persistence.*</wls:package-name>
</wls:prefer-application-packages>
- enable server redirect logging

<property name="eclipselink.logging.logger" value="DefaultLogger"/>
- start WebLogic 10.3.3.0
- deploy (run on) server from eclipse or export ear to auto deploy directory
1) JPA 2.0 XSD usage on 10.3.3.0
- I reproduced this issue with a bad EAR
- was able to use the 2.0 schema within the WAR-only application managed EAR
persistence.xml<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">

<persistence-unit name="example2" transaction-type="JTA">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<jta-data-source>localJTA</jta-data-source>
<class>org.eclipse.persistence.example.business.Cell</class>
<shared-cache-mode>NONE</shared-cache-mode>
<properties>
<property name="eclipselink.target-server" value="WebLogic_10"/>
<property name="eclipselink.logging.level" value="FINEST"/>
<property name="eclipselink.target-database" value="Derby"/>

<property name="eclipselink.logging.logger" value="DefaultLogger"/>



</properties>
</persistence-unit>
</persistence>
2) CCE on JPA provider implementation class
Error instantiating the Persistence Provider class org.eclipse.persistence.jpa.PersistenceProvider of the PersistenceUnit example2: java.lang.ClassCastException: org.eclipse.persistence.jpa.PersistenceProvider
- I reproduced and fixed this one (was Eclipse project facet issue) - EAR was wrong
- was able to run JPA 2.0 code fine on an SE PU (predeploy/deploy together)
- EE injection should not work but I will post an example EAR anyway
log[EL Example]: enterprise: JPA 2.0 Metamodel: MetamodelImpl@56287508 [ 3 Types: , 1 ManagedTypes: , 1 EntityTypes: , 0 MappedSuperclassTypes: , 0 EmbeddableTypes: ]
3) CCE on JPA spec interface class
- I could not reproduce this one
Re: WebLogic 11g EAR EJB Classpath and class loaders
Error processing persistence unit PT of module pt: Error instantiating the Persistence Provider class org.eclipse.persistence.jpa.PersistenceProvider of the PersistenceUnit PT: java.lang.ClassCastException: org.eclipse.persistence.jpa.PersistenceProvider cannot be cast to javax.persistence.spi.PersistenceProvider
4) CCE on fallback Kodo JPA provider (if an invalid say 2.1 JPA XSD schema is referenced)
java.lang.ClassCastException: kodo.persistence.PersistenceProviderImpl
at javax.persistence.Persistence.findAllProviders(Persistence.java:186)
java.lang.NoSuchMethodError: javax/persistence/EntityManager.getMetamodel()Ljavax/persistence/metamodel/Metamodel;
- reproduced by using the 1.0 javax.persistence jar (but named as the 2.0 one in APP-INF/lib)
- fixed by using either the 1.0 or 2.0 JPA XSD schema and using the correct 2.0 spec jar
thank you
/michael

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