J2EE Applications Knowledge Transfer

As a result of a rebid, the Company A for which I am working recently won a contract that had been administered by the Company B for the past 7 years.
To fully possess the application that was built by the Company B, I am preparing a list of questions (see below) to facilitate the transfer. Because my skills in the field are not quite up to the task, I am inviting comments and suggestions to ensure a smooth knowledge tranfer.
Particularly, I have no prior experience in the areas of building an application to Dev, Sat, and Prod and releasing an application, what should I ask in order to possess the knowledge in building and releasing an application?
Here is the list compiled by me:
1. Provide software application development documents; e.g. uses cases, sequence diagrams, class diagrams, and etc. If the aforementioned documents are unavailable, what are the document standards followed? And please provide those documents.
2. Provide the User's Manual for the software application developed
3. Provide access to software application code version control repository
4. List the application development environment
     What is the operating system used? Is it the Windows (which version)? Or UNIX (which version)? Or both? Or others?
     What is/are the application server(s) and their respective version(s) used for software development? WebSphere (which version)? Or WebLogic (which version)? Or Jboss (which version)? Or some other server(s)?
     What is the portal server used (which version)?
     What is the IDE and its version used for software development? The Eclipse? The NetBeans? Or some other IDE?
     What is used for version control? CVS? Or SVN? Or something else?
5. Provide application production server configurations for code development and deployment
Examples:
     Services configuration; such as data source, connection pool, transaction services, messaging services, cache services, authentication services, etc.
6. List the application development languages used and their respective versions
     Examples: HTML and XML and their derivatives? XSL and its derivatives? Java? C#? AJAX? JavaScripts? Sevlets? JSP? JavaBean? EJB? Perl? VBScript? and etc.
     Is the application web based? Or it is also a wireless application that uses WML or some other technologies to render data onto hand held devices
     Is the Web Services technologies; SOAP, WSDL, UDDL, and etc., used in developing the application?
7. List all the code development tools and their versions used for the application code development
8. List all the frameworks and their versions used for the application code development
     Examples: Struts, Spring, Hibernate, and etc.
9. Provide the original Java code of all the customized JAR files used in the application
10. List all the third party products used for the application development
11. List all the utility functionalities provided by the application and the technologies used to implement those functionalities
Examples:
     Does the application generate printouts? What are the format of those printouts? PDF? MS Excel? MS Word? And/or others?
     Does the application use single sign-on?
     What are the technologies used to impose application security (e.g. authentication and authorization)?
     Does the application provide e-mail functionality? Is JavaMail used to implement the e-mail functionality?
     Does the application generate reports? What technologies are used? JReport? Crystal Report? Or some other technologies?
12. Provide ANT/Maven scripts that are used to build and deploy and application
13. Provide the schema and DDL of the database tables used for the application development
14. Provide the code for all the stored procedures used for the application development
15. List the data persistence and retrieval languages used for the application development
     Examples: SQL? Or PL/SQL? Or others?
16. List all the business rules implemented in the application
17. Document the business rules engines used to implement the business rules in the application
18. Provide all the images and watermarks used in the application
19. List all the code testing tools used for unit test, integration test, and module test of the application
Examples: Junit, Easy Mock, etc.
Thank you very much.

Dear Lakshmi Nese,
Knowledge transfer means making you at par with your project mates in terms of knowledge. This is generally done for long term support projects. When you join a project which is running say for quite sometime, to induct you in the project Knowledge Transfer (KT) is given.
For upgradation part, knowlege transfer is very important. It will help you to find out what is in the existing system and help you to resolve the objects after the upgradation is over.
Hope this helps you.
Do award points if you found them useful.
Regards,
Rakesh
P.S. you can send me a mail at my mail id [email protected] for any specific details

Similar Messages

Unable to connect to the OracleForms application through a J2EE application

Hi there,
I have deployed a custom J2EE application in Middleware instance of my Oracle 10g AS 10.1.2
The application is sso enabled . Once a user logs in the application he is able to see a jsp in which i display hyperlinks for him to access.
One of these hyperlinks is pointing to the forms application.
the url is http://psc-pc0592:7778/forms/frmservlet?config=abs_deploy[b]
Once i click on the URL the forms applet begins to load but as the applet opens up i get the database logon screen.This should not happen
I am already logged and have been verified by sso.
Also the forms configuration is associated with a datasource.
I am not able to get as to why i get that screen when it shoud directly connect to the forms application.
Any help on this is appreciated.
Thanks & Regards,
Madhur Pant

when you go through your carrier provider, there is an additional step in the SSL tunnel. Not sure how this transcribes, but it is possible that your carrier does not use the same port as the one you want it to use.
The search box on top-right of this page is your true friend, and the public Knowledge Base too:

ANN: J2EE Applications & BEA WebLogic Hardcopies Available!

** J2EE Applications & BEA WebLogic Hardcopies Available! **
The first hardcopies of the only programming book to cover J2EE & WebLogic 6
are now available. For those of you that have already ordered, we thank you.
In just a few short weeks we have moved up to the No. 42 spot on Amazon.
If you have not ordered already, you can order now and copies will be
shipped in just a few short days. The book can be located Amazon.com at the
following URL:
http://www.amazon.com/exec/obidos/ASIN/0130911119/ref=ase_learnweblogic/103-
5396741-5920623
More information on this book can be located at:
http://www.learnweblogic.com/.
** Overview **
Building J2EE Applications & BEA WebLogic is targeted at Java programmers
developing applications for the BEA WebLogic platform, the leading Web
Application Server in the marketplace today. This book focuses on best
practices for developing enterprise applications using the WebLogic APIs.
After reading this book, intermediate or professional-level Java developers
will possess the skills and knowledge required to develop scalable and
robust applications on the WebLogic platform.
The book combines reference and tutorial, taking a step-by-step approach
that introduces each API and uses it to build a component of the WebAuction
application, which supports on-line Auctioning on the Web. All software
needed to build the sample application is included on a CD-ROM that
accompanies the book. The WebAuction project gives users the opportunity to
explore significant areas of building a distributed Enterprise Java
application, including:
· Planning in advance for scalability and deployment
· Building presentation logic
· Establishing database connectivity
· Creating Enterprise Java Beans for the BEA WebLogic application server
· Packaging the whole application so that it can be easily managed and
maintained.
** About the Authors **
Rob Woollen is a Senior Software Engineer at BEA Systems. He is currently
the lead developer for the WebLogic Server EJB Container. Before joining
BEA, Rob worked on UNIX Kernel networking for Hewlett-Packard. Rob holds a
Bachelors degree in Computer Science from Princeton University.
Michael Girdley is the Director of Product Management for WebLogic Server at
BEA, a role in which he acts as chief marketing liaison to over 200
engineers. An experienced application developer in Java, HTML, C, and C++,
Michael is a co-author of Web Programming with Java (Sams-net Publishing,
1996) and Java Unleashed, Second Edition (Sams-net Publishing, 1997).
Michael holds a Bachelors degree in Computer Science with Honors from
Lafayette College.
Sandra L. Emerson is a technical writer and consultant with 20 years'
experience in the software industry. She is a co-author of four computer
trade books: The Business Guide to the UNIX System (Addison-Wesley, 1984);
Database for the IBM PC (Addison-Wesley, 1984); Troff Typesetting for UNIX
Systems (Prentice-Hall, 1987); and The Practical SQL Handbook
(Addison-Wesley, 1989-99). The fourth edition of The Practical SQL Handbook
is scheduled for Fall, 2000.

** J2EE Applications & BEA WebLogic Hardcopies Available! **
The first hardcopies of the only programming book to cover J2EE & WebLogic 6
are now available. For those of you that have already ordered, we thank you.
In just a few short weeks we have moved up to the No. 42 spot on Amazon.
If you have not ordered already, you can order now and copies will be
shipped in just a few short days. The book can be located Amazon.com at the
following URL:
http://www.amazon.com/exec/obidos/ASIN/0130911119/ref=ase_learnweblogic/103-
5396741-5920623
More information on this book can be located at:
http://www.learnweblogic.com/.
** Overview **
Building J2EE Applications & BEA WebLogic is targeted at Java programmers
developing applications for the BEA WebLogic platform, the leading Web
Application Server in the marketplace today. This book focuses on best
practices for developing enterprise applications using the WebLogic APIs.
After reading this book, intermediate or professional-level Java developers
will possess the skills and knowledge required to develop scalable and
robust applications on the WebLogic platform.
The book combines reference and tutorial, taking a step-by-step approach
that introduces each API and uses it to build a component of the WebAuction
application, which supports on-line Auctioning on the Web. All software
needed to build the sample application is included on a CD-ROM that
accompanies the book. The WebAuction project gives users the opportunity to
explore significant areas of building a distributed Enterprise Java
application, including:
· Planning in advance for scalability and deployment
· Building presentation logic
· Establishing database connectivity
· Creating Enterprise Java Beans for the BEA WebLogic application server
· Packaging the whole application so that it can be easily managed and
maintained.
** About the Authors **
Rob Woollen is a Senior Software Engineer at BEA Systems. He is currently
the lead developer for the WebLogic Server EJB Container. Before joining
BEA, Rob worked on UNIX Kernel networking for Hewlett-Packard. Rob holds a
Bachelors degree in Computer Science from Princeton University.
Michael Girdley is the Director of Product Management for WebLogic Server at
BEA, a role in which he acts as chief marketing liaison to over 200
engineers. An experienced application developer in Java, HTML, C, and C++,
Michael is a co-author of Web Programming with Java (Sams-net Publishing,
1996) and Java Unleashed, Second Edition (Sams-net Publishing, 1997).
Michael holds a Bachelors degree in Computer Science with Honors from
Lafayette College.
Sandra L. Emerson is a technical writer and consultant with 20 years'
experience in the software industry. She is a co-author of four computer
trade books: The Business Guide to the UNIX System (Addison-Wesley, 1984);
Database for the IBM PC (Addison-Wesley, 1984); Troff Typesetting for UNIX
Systems (Prentice-Hall, 1987); and The Practical SQL Handbook
(Addison-Wesley, 1989-99). The fourth edition of The Practical SQL Handbook
is scheduled for Fall, 2000.

J2EE Applications & BEA WebLogic Hardcopies Available!

** J2EE Applications & BEA WebLogic Hardcopies Available! **
The first hardcopies of the only programming book to cover J2EE & WebLogic 6
are now available. For those of you that have already ordered, we thank you.
In just a few short weeks we have moved up to the No. 42 spot on Amazon.
If you have not ordered already, you can order now and copies will be
shipped in just a few short days. The book can be located Amazon.com at the
following URL:
http://www.amazon.com/exec/obidos/ASIN/0130911119/ref=ase_learnweblogic/103-
5396741-5920623
More information on this book can be located at:
http://www.learnweblogic.com/.
** Overview **
Building J2EE Applications & BEA WebLogic is targeted at Java programmers
developing applications for the BEA WebLogic platform, the leading Web
Application Server in the marketplace today. This book focuses on best
practices for developing enterprise applications using the WebLogic APIs.
After reading this book, intermediate or professional-level Java developers
will possess the skills and knowledge required to develop scalable and
robust applications on the WebLogic platform.
The book combines reference and tutorial, taking a step-by-step approach
that introduces each API and uses it to build a component of the WebAuction
application, which supports on-line Auctioning on the Web. All software
needed to build the sample application is included on a CD-ROM that
accompanies the book. The WebAuction project gives users the opportunity to
explore significant areas of building a distributed Enterprise Java
application, including:
· Planning in advance for scalability and deployment
· Building presentation logic
· Establishing database connectivity
· Creating Enterprise Java Beans for the BEA WebLogic application server
· Packaging the whole application so that it can be easily managed and
maintained.
** About the Authors **
Rob Woollen is a Senior Software Engineer at BEA Systems. He is currently
the lead developer for the WebLogic Server EJB Container. Before joining
BEA, Rob worked on UNIX Kernel networking for Hewlett-Packard. Rob holds a
Bachelors degree in Computer Science from Princeton University.
Michael Girdley is the Director of Product Management for WebLogic Server at
BEA, a role in which he acts as chief marketing liaison to over 200
engineers. An experienced application developer in Java, HTML, C, and C++,
Michael is a co-author of Web Programming with Java (Sams-net Publishing,
1996) and Java Unleashed, Second Edition (Sams-net Publishing, 1997).
Michael holds a Bachelors degree in Computer Science with Honors from
Lafayette College.
Sandra L. Emerson is a technical writer and consultant with 20 years'
experience in the software industry. She is a co-author of four computer
trade books: The Business Guide to the UNIX System (Addison-Wesley, 1984);
Database for the IBM PC (Addison-Wesley, 1984); Troff Typesetting for UNIX
Systems (Prentice-Hall, 1987); and The Practical SQL Handbook
(Addison-Wesley, 1989-99). The fourth edition of The Practical SQL Handbook
is scheduled for Fall, 2000.

** J2EE Applications & BEA WebLogic Hardcopies Available! **
The first hardcopies of the only programming book to cover J2EE & WebLogic 6
are now available. For those of you that have already ordered, we thank you.
In just a few short weeks we have moved up to the No. 42 spot on Amazon.
If you have not ordered already, you can order now and copies will be
shipped in just a few short days. The book can be located Amazon.com at the
following URL:
http://www.amazon.com/exec/obidos/ASIN/0130911119/ref=ase_learnweblogic/103-
5396741-5920623
More information on this book can be located at:
http://www.learnweblogic.com/.
** Overview **
Building J2EE Applications & BEA WebLogic is targeted at Java programmers
developing applications for the BEA WebLogic platform, the leading Web
Application Server in the marketplace today. This book focuses on best
practices for developing enterprise applications using the WebLogic APIs.
After reading this book, intermediate or professional-level Java developers
will possess the skills and knowledge required to develop scalable and
robust applications on the WebLogic platform.
The book combines reference and tutorial, taking a step-by-step approach
that introduces each API and uses it to build a component of the WebAuction
application, which supports on-line Auctioning on the Web. All software
needed to build the sample application is included on a CD-ROM that
accompanies the book. The WebAuction project gives users the opportunity to
explore significant areas of building a distributed Enterprise Java
application, including:
· Planning in advance for scalability and deployment
· Building presentation logic
· Establishing database connectivity
· Creating Enterprise Java Beans for the BEA WebLogic application server
· Packaging the whole application so that it can be easily managed and
maintained.
** About the Authors **
Rob Woollen is a Senior Software Engineer at BEA Systems. He is currently
the lead developer for the WebLogic Server EJB Container. Before joining
BEA, Rob worked on UNIX Kernel networking for Hewlett-Packard. Rob holds a
Bachelors degree in Computer Science from Princeton University.
Michael Girdley is the Director of Product Management for WebLogic Server at
BEA, a role in which he acts as chief marketing liaison to over 200
engineers. An experienced application developer in Java, HTML, C, and C++,
Michael is a co-author of Web Programming with Java (Sams-net Publishing,
1996) and Java Unleashed, Second Edition (Sams-net Publishing, 1997).
Michael holds a Bachelors degree in Computer Science with Honors from
Lafayette College.
Sandra L. Emerson is a technical writer and consultant with 20 years'
experience in the software industry. She is a co-author of four computer
trade books: The Business Guide to the UNIX System (Addison-Wesley, 1984);
Database for the IBM PC (Addison-Wesley, 1984); Troff Typesetting for UNIX
Systems (Prentice-Hall, 1987); and The Practical SQL Handbook
(Addison-Wesley, 1989-99). The fourth edition of The Practical SQL Handbook
is scheduled for Fall, 2000.

HELP!!! Cannot deploy J2EE application with Oracle JDBC driver...

Hi,
I am writing a J2EE application which (in theory, at least)
connects to an Oracle 9i database.
I have written a simple Java test app utilising only the
java.sql package classes (e.g. Connection, ResultSet) to directly
connect to the database. As long as the classes12.zip is in the
CLASSPATH it works fine.
Now I have written an Enterprise application (SessionBean,
Remote and Home interface and Client) which I am attempting to
deploy via deploytool.
If I include just the client jar and EJB jar in the application
it deploys okay but when I run the application (using runclient)
it produces the following error:
java.lang.NoClassDefFoundError: oracle/jdbc/OracleDriver
(It is nested within other error output but that is the core
issue).
However if I try to include the JAR libraries into the app
(classes12.jar and nls_charset.jar from $ORACLE_HOME/jdbc/lib),
then I get the following output from deploytool when I hit the
"deploy" (or "redeploy") button:
Deployment error: invalid entry compressed size
(expected 14411 but got 14580 bytes)
Can someone please tell me what is going on???
How can I deploy the J2EE application including the Oracle
JDBC Driver???
My only other option at the moment is to place all the function-
-ality in the client and not use the J2EE framework.
Any help is greatly appreciated.
Regards,
Ben New
Leftclick Software Development
[email protected]

OK Ben,
I admit I'm a bit confused. Let me see if I understand where you're
coming from.
You have written a J2EE application that includes a session bean,
correct? If so, your session bean needs to be deployed to an EJB
container. What container are you using? The Oracle 9i database
has an embedded EJB container which (theoretically) you can use.
However, as far as I know, Oracle recommends you use OC4J as the
EJB container. So again I ask, what EJB container are you using?
If, as you say, you are new to EJB, then I think you should
immediately start working wiht OC4J as your EJB container.
Did you look at the tutorial link I gave in my previous post? It
explains -- step by step -- how to create, deploy and run a J2EE
application using OC4J as the EJB container. It also has links to
introductory material for people without little knowledge of J2EE
and EJB.
I have 9iAS Enterprise Edition and 8.1.7.1.0 database server (and
OC4J) installed on my SUN machine. I cannot find any of the
utilities you mention -- "j2eeadmin","runclient" or "deploytool".
What Oracle software have you installed? What are the versions?
What platform are you using?
A J2EE application (according to the specification from SUN)
consists of modules. A module can either be a client module or an
EJB module. A client module can either be a java application client
or a web-based client (servlet or JSP). A J2EE application usually
contains one client module and one EJB module. A J2EE application
needs to be deployed to a J2EE container.
Hopefully the J2EE picture is becoming clearer. I think you need
to read some introductory material regarding J2EE if you intend
to become proficient at it.
I feel that you are under the impression that a J2EE application
is a glorified JDBC application. It isn't (as far as I'm aware).
Good Luck,
Avi.

J2EE APPLICATION ON OAS10G AND J2EE APPLICATION ON IBM Websphere

Hi All,
As you all know that there are many application servers in the market for deploying the application so I just want to know why we all choose Oracle Application Server 10g for deploying J2ee application and why some choose IBM Websphere for deploying J2ee application. Is there any doc which specifies that Deployng J2ee application on Websphere is better than OAS 10g.
Regards
Kumar

If you have to choose an architecture now, I would advice not to choose Oracle Application Server, but BEA WebLogic. On Oracle Open World I learned that Oracle will stop developing on OC4J, so WebLogic seems the smarter choise.
To either choose weblogic or websphere has to do with a lot more then just the J2EE specs. It also has to do with knowledge of your collegues (who have to support either of these products), company strategy, etc. Therefore this question cannot be answered that easy.
Personally I think an all Oracle stack is just fine, WebLogic has a richer featureset then WebSphere (AFAIK). WebSphere is not a bad product though.

J2EE Application for OAS10g Release 3

Dear All
If anyone of you have any j2ee application for OAS10G Release 3 .Please send to this id [email protected] .

If you have to choose an architecture now, I would advice not to choose Oracle Application Server, but BEA WebLogic. On Oracle Open World I learned that Oracle will stop developing on OC4J, so WebLogic seems the smarter choise.
To either choose weblogic or websphere has to do with a lot more then just the J2EE specs. It also has to do with knowledge of your collegues (who have to support either of these products), company strategy, etc. Therefore this question cannot be answered that easy.
Personally I think an all Oracle stack is just fine, WebLogic has a richer featureset then WebSphere (AFAIK). WebSphere is not a bad product though.

** ANNOUNCE: J2EE Applications & BEA WebLogic Hardcopies Available! **

** ANNOUNCE: J2EE Applications & BEA WebLogic Hardcopies Available! **
The first hardcopies of the only programming book to cover J2EE & WebLogic 6
are now available. For those of you that have already ordered, we thank
you.
In just a few short weeks we have moved up to the No. 636 spot on Amazon.
This is great interest in considering the official ship date is not until
August 16!
If you have not ordered already, you can order now and copies will be
shipped in just a few short days. The book can be located Amazon.com at the
following URL:
http://www.amazon.com/exec/obidos/ASIN/0130911119/learnweblogic/102-1778325-
4765749
More information on this book can be located at:
http://www.learnweblogic.com/.
** Overview **
Building J2EE Applications & BEA WebLogic is targeted at Java programmers
developing applications for the BEA WebLogic platform, the leading Web
Application Server in the marketplace today. This book focuses on best
practices for developing enterprise applications using the WebLogic APIs.
After reading this book, intermediate or professional-level Java developers
will possess the skills and knowledge required to develop scalable and
robust applications on the WebLogic platform.
The book combines reference and tutorial, taking a step-by-step approach
that introduces each API and uses it to build a component of the WebAuction
application, which supports on-line Auctioning on the Web. All software
needed to build the sample application is included on a CD-ROM that
accompanies the book. The WebAuction project gives users the opportunity to
explore significant areas of building a distributed Enterprise Java
application, including:
· Planning in advance for scalability and deployment
· Building presentation logic
· Establishing database connectivity
· Creating Enterprise Java Beans for the BEA WebLogic application server
· Packaging the whole application so that it can be easily managed and
maintained.
** About the Authors **
Rob Woollen is a Senior Software Engineer at BEA Systems. He is currently
the lead developer for the WebLogic Server EJB Container. Before joining
BEA, Rob worked on UNIX Kernel networking for Hewlett-Packard. Rob holds a
Bachelors degree in Computer Science from Princeton University.
Michael Girdley is the Director of Product Management for WebLogic Server at
BEA, a role in which he acts as chief marketing liaison to over 200
engineers. An experienced application developer in Java, HTML, C, and C++,
Michael is a co-author of Web Programming with Java (Sams-net Publishing,
1996) and Java Unleashed, Second Edition (Sams-net Publishing, 1997).
Michael holds a Bachelors degree in Computer Science with Honors from
Lafayette College.
Sandra L. Emerson is a technical writer and consultant with 20 years'
experience in the software industry. She is a co-author of four computer
trade books: The Business Guide to the UNIX System (Addison-Wesley, 1984);
Database for the IBM PC (Addison-Wesley, 1984); Troff Typesetting for UNIX
Systems (Prentice-Hall, 1987); and The Practical SQL Handbook
(Addison-Wesley, 1989-99). The fourth edition of The Practical SQL Handbook
is scheduled for Fall, 2000.

** ANNOUNCE: J2EE Applications & BEA WebLogic Hardcopies Available! **
The first hardcopies of the only programming book to cover J2EE & WebLogic 6
are now available. For those of you that have already ordered, we thank
you.
In just a few short weeks we have moved up to the No. 636 spot on Amazon.
This is great interest in considering the official ship date is not until
August 16!
If you have not ordered already, you can order now and copies will be
shipped in just a few short days. The book can be located Amazon.com at the
following URL:
http://www.amazon.com/exec/obidos/ASIN/0130911119/learnweblogic/102-1778325-
4765749
More information on this book can be located at:
http://www.learnweblogic.com/.
** Overview **
Building J2EE Applications & BEA WebLogic is targeted at Java programmers
developing applications for the BEA WebLogic platform, the leading Web
Application Server in the marketplace today. This book focuses on best
practices for developing enterprise applications using the WebLogic APIs.
After reading this book, intermediate or professional-level Java developers
will possess the skills and knowledge required to develop scalable and
robust applications on the WebLogic platform.
The book combines reference and tutorial, taking a step-by-step approach
that introduces each API and uses it to build a component of the WebAuction
application, which supports on-line Auctioning on the Web. All software
needed to build the sample application is included on a CD-ROM that
accompanies the book. The WebAuction project gives users the opportunity to
explore significant areas of building a distributed Enterprise Java
application, including:
· Planning in advance for scalability and deployment
· Building presentation logic
· Establishing database connectivity
· Creating Enterprise Java Beans for the BEA WebLogic application server
· Packaging the whole application so that it can be easily managed and
maintained.
** About the Authors **
Rob Woollen is a Senior Software Engineer at BEA Systems. He is currently
the lead developer for the WebLogic Server EJB Container. Before joining
BEA, Rob worked on UNIX Kernel networking for Hewlett-Packard. Rob holds a
Bachelors degree in Computer Science from Princeton University.
Michael Girdley is the Director of Product Management for WebLogic Server at
BEA, a role in which he acts as chief marketing liaison to over 200
engineers. An experienced application developer in Java, HTML, C, and C++,
Michael is a co-author of Web Programming with Java (Sams-net Publishing,
1996) and Java Unleashed, Second Edition (Sams-net Publishing, 1997).
Michael holds a Bachelors degree in Computer Science with Honors from
Lafayette College.
Sandra L. Emerson is a technical writer and consultant with 20 years'
experience in the software industry. She is a co-author of four computer
trade books: The Business Guide to the UNIX System (Addison-Wesley, 1984);
Database for the IBM PC (Addison-Wesley, 1984); Troff Typesetting for UNIX
Systems (Prentice-Hall, 1987); and The Practical SQL Handbook
(Addison-Wesley, 1989-99). The fourth edition of The Practical SQL Handbook
is scheduled for Fall, 2000.

Error while running a J2EE application on Oracle10gAS

Hi,
I am receiving an error when trying to run a J2EE application on Oracle10gAS. The application runs successfully on Oracle9iAS, but throws the following exception on 10g application server:
<?xml version="1.0" encoding="UTF-8" ?>
- <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
- <SOAP-ENV:Body>
- <SOAP-ENV:Fault>
<faultcode>SOAP-ENV:Server.Exception:</faultcode>
<faultstring>com.evermind.server.rmi.OrionRemoteException: Error in createInstance(): null; nested exception is: java.lang.NoClassDefFoundError</faultstring>
<faultactor>/STAR-TicketBroker-context-root/TicketBrokerWS</faultactor>
</SOAP-ENV:Fault>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
Does anyone have any idea why I would be receiving this
error? We are using Session EJBs in our J2EE application. Are there any changes needed in the code in order to migrate a J2EE application from 9i to 10g ???
Please help.
Thanks,
-Prashant

Hi Somil,
I've just had this same error message, and it was because I had a bogus character in my JSP sources. I'd cut-and-pasted the text from a Word document, and it included the "registered trademark" sign (an R in a circle) as a single character. This worked in my test environment, but not in my production environment (where presumably the default encoding is different). I replaced the character with the equivalent HTML entity &reg; (ie. the five characters & r e g ; ) and it all worked.
Have a look through the offending JSPs and see whether you have any characters that might be incompatible with your default encoding (anything that isn't plain old 7-bit ASCII is potentially a problem). Change them to HTML entities and you should be fine.
Hope this helps,
Richie

SSO to J2EE application from SAP Portal

Hi
I am trying to do SSO from SAP Portal to a J2EE engine which runs on SAP Web AS.
Here are my queries
1. When I deploy a J2EE application on Web AS , I dont get any login screen. How can I make sure that if a user wants to access this J2EE application he should get a login screen and provide his login credentials first, only then would he be able to access the J2EE application.
2.When I am done with Part 1. If a user tries to access this J2EE application from the Portal (asuming the user Id's in Portal and J2EE application are same and both are in the same domain) , I should not get any login screen and should be able to view the J2EE application.
3.I want to use SAP Logon tickets generated by the Portal to enable SSO.
I have done all the necessary configurations in the J2EE server.
1. Imported the Portal's verify.der certificate.
2. Adjusted the login modules stack for the application accordingly.
Can anyone please help me out with this or throw some light.
Please help.
Thanks in advance,
Vivek
PS - Points will be definitely rewarded

Hi Vivek,
Let me give you the solution for both questions differently.
Ques 1. When I deploy a J2EE application on Web AS , I dont get any login screen. How can I make sure that if a user wants to access this J2EE application he should get a login screen and provide his login credentials first, only then would he be able to access the J2EE application.
Ans: For doing this in the code of your J2EE application you have to write a if statement which will check if the user ID is coming from the backend or not. If yes then you display that logon page else you just pass that username which is coming from backend and displ;ay the page accordingly.
Ques 2.When I am done with Part 1. If a user tries to access this J2EE application from the Portal (asuming the user Id's in Portal and J2EE application are same and both are in the same domain) , I should not get any login screen and should be able to view the J2EE application.
Ans: Yes, this is what I am explaining you. Even I had also made same kind of J2EE application in which if the user is coming from the backend then he/she will look the J2EE screen else if the username is not coming then he will se the Login screen. Exactly same as what are looking for.
3.I want to use SAP Logon tickets generated by the Portal to enable SSO.
Ans: I have used User Mapping instead of SAP Logon ticket. Well that is also the option for SSO but personally I think User Mapping is easy and better way for implementing SSO.
I dont know whether this will help you or not. Please let me know. I can definately help if you want to implement SSO using User Maping.
Regards
Pravesh
PS: Please dont forget to reward points.

SSO:Portal to J2EE Application

Hi all,
I have developed a simple java application that has user-id & password textboxes along with a submit button.(login.jsp)
this is deployed as an iView in the server.
When the submit button is clicked,it navigates 2 another JSP page(welcome.jsp) that displays the user's name if the id and passowrd matches with that present in the backend DB.
I want 2 display this welcome page directly without prompting for a logon frm the user.
How can i do this with AppIntegrator?I referd the following <a href="https://www.sdn.sap.com/irj/sdn/thread?threadID=95024">thread</a>I cant find the system uri,in the source code of the application!
How should i proceed further?
Thanks in advance.
anticipating replies
SwarnaDeepika

Hi Swarna,
Kindly try these steps..I have accumulated the points as per the discussions on mail.
Just try all these steps..
1) I hope you have created a J2EE application which has its own data source (i.e: tables in the Data Dictionary which has enteries for user and Password).
2) Create a HTTP system for usermapping.
3) After that perform all the steps as mentioned in the WebLog for the App integrator. (i.e: do the user mapping to the system by providing the User name and password.)
4) In the J2EE Application write the code that If that username which you got from the URL and the userName in your data source is same then show him the main page directly, else show him the Login Page.
5) Create a URL View in which you can put your application. Set the admin,user property from the User Management.
I hope all these will solve your problem!! Kinldy check this!!
Regards
Pravesh

J2EE application access from Portal - P4ObjectBroker

hey all,
I want to access access a J2EE application (Web Service) from a Portal Component. The documentation at http://help.sap.com/saphelp_nw04/helpdata/en/c0/a584409db95537e10000000a1550b0/content.htm shows an example.
They import the package com.sap.engine.services.rmi_p4.P4ObjectBroker. I cannot find the package on my system, i.e. my local portal installation.
Does anybody know what kind of package is required, or where I can find this package...
many thanks in advance
cheers Sascha

Hey Sascha,
the P4ObjectBroker is part of the implementation of the P4 Provider Service on the J2EE Engine. It is part of the com.sap.engine.services.rmi_p4 package.
If you can't find it I recommend you to search it using ClassLocator, it is a plugin that indexes all your packages and locates the propar class for you.
You can download it at this link: http://sourceforge.net/projects/classlocator
Read the instructions of how to use it with the NWDS, it is really simple. If you need more help do tell me.
Regards,
Roy

How to access a Portal User Info from a J2EE application?

Hi,
I have deployed a j2ee application in portal and its running fine.
from that application i need to assign some roles to some users.i have the user id.
so my doubt is can i access the portal user info from this j2ee application?i have some servlets in the j2ee application....can i get the portal user info from this servlet?
plz help me
regards,
Visweswar

Hi,
Please check out this to get the portal user information from Java -
WdClientUser class/Interface to aciehve this.
Please check out these links on the same -
WDClientUser.getClientUser IUser
help needed
Regards
Lekha

Create J2EE Application in Release 6.20

Hi All,
I'm quiet new to SAP WAS.
I read in the documentation that JAVA IDE (SAP NETWEAVER DEVELOPER STUDIO) is added start on Release 6.30 (Please, correct me if I'am wrong).
If it so, how can I create J2EE application in Release 6.20. A brief explanation will be highly appreciated.
Thanks,
Edward (Indonesia).

Hi Kalle,
Thx, I have got the CD brom the Basis guy, and sucessfully installed it on my PC.
But when I try to execute Stand Alone Server, this error occured:
Loading core services:
Starting core service monitor ... done.
Starting core service p4 ... done.
Starting core service log ... done.
Starting core service dbms ... done.
Starting core service security ... done.
System Exception * Fail to start Naming. Exception is: java.security.AccessContr
olException: access denied (com.inqmy.lib.security.DomainsEnumerationPermission
ProtectionDomainEnumeration)
java.security.AccessControlException: access denied (com.inqmy.lib.security.Doma
insEnumerationPermission ProtectionDomainEnumeration)
 at java.security.AccessControlContext.checkPermission(AccessControlConte
xt.java:269)
 at java.security.AccessController.checkPermission(AccessController.java:
401)
 at com.inqmy.core.policy.PolicyManager.getProtectionDomainStack(PolicyMa
nager.java:311)
 at com.inqmy.core.service.context.container.security.DefaultProtectionDo
mainContext.getProtectionDomainStack(DefaultProtectionDomainContext.java:99)
 at com.inqmy.services.security.domains.ProtectionDomainManagerImpl.getPr
otectionDomainStack(ProtectionDomainManagerImpl.java:96)
 at com.inqmy.services.jndi.InitialContextFactoryImpl.getInitialContext(I
nitialContextFactoryImpl.java:72)
 at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:6
62)
 at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243
 at javax.naming.InitialContext.init(InitialContext.java:219)
 at javax.naming.InitialContext.<init>(InitialContext.java:175)
 at com.inqmy.services.jndi.JNDIFrame.bindReferences(JNDIFrame.java:278)
 at com.inqmy.services.jndi.JNDIFrame.start(JNDIFrame.java:176)
 at com.inqmy.core.service.application.ApplicationServiceRunner.startFram
e(ApplicationServiceRunner.java:55)
 at com.inqmy.core.service.container.ServiceRunner.run(ServiceRunner.java
:126)
 at com.inqmy.core.thread.impl2.SingleThread.run(SingleThread.java:118)
Starting core service naming ... done.
Please Help.
Warm regard,
Edward.

Is anyone doing disaster recovery for a J2EE application?

We generally use database log shipping to maintain a standby database for our ABAP instances. We can successfully fail over our production application to our disaster recovery site with no real issues. With the J2EE instances (EP, ESS/MSS, BI, etc), we have a few concerns:
hostname cannot change, without going through a system copy procedure, so we would have to keep the hostnames in DR the same. (for example, ref: oss note 757692 - changing hostname is not supported)
fully qualified domain name - from what I understand, there are potentially issues with changing the fqdn, for example SSO certificates, BSPs, XI has issues, etc.
we can't keep both hostname and fqdn the same between DR and production, or we could never do a DR test.
Has anyone implemented disaster recovery for any SAP J2EE application that has run into these concerns and addressed them? Input would be greatly appreciated regarding how you addressed these issues, or how you architected your disaster recovery implementation.
Regards,
David Hull
The Walt Disney Company

I haven't done this personally, but I do have some experience with these issues in different HA environments.
To your first point: You can change the hostname, note 757692 tells you exactly how to do it. However like the note says, "Changing the name of a host server in a production system is not automatically supported by SAP." When it says "supported by SAP" I think it means SAP the company, not SAP's software. So I would contact SAP to see if this configuration would be covered under your service agreement. Then you have to think about whether you want to do something that isn't "officially supported" by SAP. Also I'm sure you'll need some kind of additional licensing for the DR systems as their hardware keys will de different.
To your second point: As for SSO certs (SAP Login Tickets), I think they should still work as long as the SID and client number of the issuing system remain the same. I don't think they are hostname or fqdn dependant. For BSPs I would think they would still work as long as they use relative paths rather than absolute paths. And for XI... I have no idea what kind of issues may arise, I'm not an XI guy.
Again, I haven't done what you're describing myself. This is just based on my HA experiences.
Hope this helps a little,
Glenn

J2EE Applications Knowledge Transfer

Similar Messages

Maybe you are looking for