3983 cics java real life projects

© 2015 IBM Corporation
© IBM Corporation 2011
Java Real Live Projects
What do customers use
Java for?
Tobias Leicher & Jürgen Sussner

2
Big Picture: Where to go with the CICS Development
Today (sample scenario)
System z
Cobol-Modules
New functions
How to
implement?
DB2
How to use
services of other
systems?
Hard to
maintance/change?
App Server
External Systems
Java Modul
Modernisation
?

What can you expect
● Datev is one of my experienced customer in CICS
– And CICS Java on System z
● Beside the Experiences of Datev, I implemented several Projects
with other Customers

Page
© DATEV eG, all rights
reserved
CICS Java Real Life Projects
Session: ASZ-3983 - Juergen Sussner DATEV e.G.

Page
reserved
Agenda
 About DATEV
 Our way to using java in CICS
 Some of our projects
 Bussinesrule Service
 JAVA (de)Compression
 Interface for OAM
 Project BOES
 Stumbling blocks
 Conclusion
 Vision for the future
10.02.2015
2

Page
reserved
About DATEV
 The cooperative DATEV eG, Nuremberg, is a software company and IT
service provider for tax consultants, auditors and lawyers as well as their
clients
 Founded 1966
 Ca. 6.700 employees, 800 Mio. € turnover
 4 computer centers in Nuremberg with
IBM System z (EC12) mainframes,
Power 6 & 7 AIX systems,
Approx. 7000 Linux and
Windows Server
 Info: www.datev.com
10.02.2015
3

Page
reserved
Why Java in CICS
10.02.2015
4

Page
reserved
A short history
A long time ago
10.02.2015
5
ISDN started
Task ISDN permission Check Engine
CICS Business Logic
Mainframe

Page
reserved
A short history
A not so long time ago
10.02.2015
6
ISDN started
CICS Business Logic
Mainframe
Websphere AIX
Web
Application
Business Rule Service (JAVA)

Page
reserved
What is this „Business Rule Service“?
10.02.2015
7
 SOAP WebService for Access Control System
 Computes permissions of a given user according to
 User Credentials
 User profile
 Group memberships
 Memberships in different contexts
 Used as „central“ policy enforcement point
Creative Commons License

Page
reserved
A short history
Close to now
10.02.2015
8
ISDN started
CICS Business Logic
Mainframe
Websphere AIX
Web
Application
TCP/IP
Business Rule
Service (C)

Page
reserved
A short history
The final complexity
10/02/2015
9
ISDN started
CICS Business Logic
Mainframe
Websphere AIX
Web
Application
TCP/IP
Business Rule
Service (C)

Page
reserved
A short history
10/02/2015
10
ISDN started
CICS Business Logic
Mainframe
Websphere AIX
Web
Application
TCP/IP
Business Rule
Service (C)

Page
reserved
A short history
10/02/2015
11
ISDN started
CICS Business Logic
Mainframe
Websphere AIX
Web
Application
TCP/IP
Business Rule
Service (C)
 Hard to maintain
 Logic implemented twice
 Performance issues
 Many dependencies

Page
reserved
The Project “Business Rule Service”
A closer look
10/02/2015
12Creative Commons License

Page
reserved
Internal architecture
10/02/2015
13
Websphere /J2EE
Service
SOAP/
HTTP
JDBC
Business-
Rule
DB

Page
reserved
10/02/2015
14
Websphere /J2EE
Service
WebService
Skeleton
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
15
Websphere /J2EE
Service
WebService
Skeleton
POJO
Service
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
16
Websphere /J2EE
Service
WebService
Skeleton
POJO
Service
JNDI
Service
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
17
Websphere /J2EE
Service
WebService
Skeleton
POJO
Service
POJO
DAO
Spring
based
DAO
JNDI
Service
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
18
Websphere /J2EE
Service
WebService
Skeleton
POJO
Service
POJO
DAO
Spring
based
DAO
JNDI
Service
JDBC
Type 4
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
19
Websphere /J2EE
Service
WebService
Skeleton
POJO
Service
POJO
DAO
Spring
based
DAO
JNDI
Service
JDBC
Type 4
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
20
Websphere /J2EE
Service
WebService
Skeleton
POJO
Service
POJO
DAO
Spring
based
DAO
JNDI
Service
JDBC
Type 4
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
21
Websphere /J2EE
Service
WebService
Skeleton
POJO
Service
POJO
DAO
Spring
based
DAO
JNDI
Service
JDBC
Type 4
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
22
Websphere /J2EE
Service
WebService
Skeleton
POJO
Service
POJO
DAO
Spring
based
DAO
JNDI
Service
JDBC
Type 4
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
23
Websphere /J2EE
Service
WebService
Skeleton
POJO
Service
POJO
DAO
Spring
based
DAO
JNDI
Service
JDBC
Type 4
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
24
Websphere /J2EE
Service
POJO
Service
POJO
DAO
Spring
based
DAO
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
25
Websphere /J2EE
Service
Java Record
Framework
& Wrapper
POJO
Service
POJO
DAO
Spring
based
DAO
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
26
Websphere /J2EE
Service
Java Record
Framework
& Wrapper
POJO
Service
POJO
DAO
Spring
based
DAO
Custom
JNDI
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
10/02/2015
27
Websphere /J2EE
Service
Java Record
Framework
& Wrapper
POJO
Service
POJO
DAO
Spring
based
DAO
Custom
JNDI
JDBC
Type 2
SOAP/
HTTP
JDBC
WSDL
Business-
Rule
DB

Page
reserved
The Project Business Rule Service
Steps for migration
10/02/2015
28
WAS - J2EE CICS JAVA
Use DFHWS2LS and J2C
Records
Create Main Class to map
from Container to Java
Replace JDBC Type4 with
Type2
Replace JNDI
Profiling and tuning to identify potential for optimization

Page
reserved
Final architecture based on pooled JVM
10/02/2015
29
ISDN started
CICS Business Logic
Mainframe
Websphere AIX
Web
Application
TCP/IP

Page
reserved
Final architecture based on pooled JVM
10/02/2015
30
ISDN started
CICS Business Logic
Mainframe
Websphere AIX
Web
Application
TCP/IP
 easier to maintain
 single Point of
implementation
 performance Benefit

Page
reserved
Benefits from migration to JVM server
10/02/2015
31
 Two possible migration paths:
“Fully OSGI compliant” vs. „Single bundle“ approach
 Load- and Performance Test:
 Less CPU time needed (larger parts zIIP eligible)
 Slightly better response times
 Even J2EE developers do not always write thread safe code;-)
 Long time of testing and QA

Page
reserved
Some charts from production
10/02/2015
32

Page
reserved
Some Statistics (03/2013)
10/02/2015
33
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
05:30
05:46
06:02
06:18
06:34
06:50
07:06
07:22
07:38
07:54
08:10
08:26
08:42
08:58
09:14
09:30
09:46
10:02
10:18
10:34
10:50
11:06
11:22
11:38
11:54
12:10
12:26
12:42
12:58
13:14
13:30
13:46
14:02
14:18
14:34
14:50
15:06
15:22
15:38
15:54
16:10
16:26
16:42
16:58
17:14
17:30
17:46
CICS LINK
WebService
EXCI
Transactions per minute
2,7
0,40,6
Batch Job via EXCI
CICS Tasks via Link
Webservice Calls
Mio transactions per day
~ 3.700.000 transactions per day

Page
reserved
10/02/2015
34
0
2000
4000
6000
8000
10000
12000
14000
16000
18000 05:30
05:50
06:10
06:30
06:50
07:10
07:30
07:50
08:10
08:30
08:50
09:10
09:30
09:50
10:10
10:30
10:50
11:10
11:30
11:50
12:10
12:30
12:50
13:10
13:30
13:50
14:10
14:30
14:50
15:10
15:30
15:50
16:10
16:30
16:50
17:10
17:30
17:50
CICS Link
Webservice
EXCI
3,7
1,8
0,7
EXCI
Webservice
CICS Link

Page
reserved
10/02/2015
35
0
2000
4000
6000
8000
10000
12000
14000
16000
18000 05:30
05:50
06:10
06:30
06:50
07:10
07:30
07:50
08:10
08:30
08:50
09:10
09:30
09:50
10:10
10:30
10:50
11:10
11:30
11:50
12:10
12:30
12:50
13:10
13:30
13:50
14:10
14:30
14:50
15:10
15:30
15:50
16:10
16:30
16:50
17:10
17:30
17:50
CICS Link
Webservice
EXCI
3,7
1,8
0,7
EXCI
Webservice
CICS Link
2013
3,7 Mio
2015
6,2 Mio

Page
reserved
Infrastructure Scaling
10/02/2015
36
 Based on JVM Servers
 For Workload via EXCI / from WAS (5.5 Mio TX per day)
 6 CICS 4.2 CICS-regions
 max 20 Threads and 512 MB per JVM Server
 Daily peak load is handled by not more than 5 JVM threads in parallel
 Memlimit: 20 GB per CICS-region
 For CICS local workload (0.7 Mio TX per day)
 1 JVM Server per region

Page
reserved
The project (de)Compression
10/02/2015
37

Page
reserved
The project (de)Compression
Motivation
 Enable usage of compression in C or Cobol programs
 Utilize JAVA compression capabilities
 Provide a wide variety of compression algorithms
 gzip
 Multi-File archives
 PKZIP
 Compress VSAM entries in KSDS
 Deflate / Inflate
 …
 Extensible for new algorithms
10/02/2015
38

Page
reserved
The project Compression
Architecture
10/02/2015
39
JVM Server
Channel
 OPERATION
 PARAMETER
 DATA
Main
Method
GZIP
GUNZIP
ZIP
DEFLATE
…
Channel
 OPERATION
 PARAMETER
 DATA

Page
reserved
The project Compression
Statistics
10/02/2015
40
0
500
1000
1500
2000
5:00
5:48
6:36
7:24
8:12
9:00
9:48
10:36
11:24
12:12
13:00
13:48
14:36
15:24
16:12
17:00
17:48
18:36
19:24
20:12
21:00
21:48
22:36
23:35
GZIP; 340
PKZIP; 295
GUNZIP; 162
GZIP
PKZIP
GUNZIP
1000 transactions per day
~ 800.000 transactions per day

Page
reserved
The Project BOES
A data migration task
10/02/2015
41

Page
reserved
The Project BOES
Initial Situation
 Existing business code implementation
 Used in dozens of J2EE Applications
 Implemented via EJB and JPA
Should be reused in a zOS/CICS Project
10/02/2015
42
Websphere Application Server
J2EE Application
SOA Core

Page
reserved
The Project BOES
The generative Approach
1. Implement service
description
2. Implement business code
3. Generate application code
4. Runtime takes care about
connectivity to service
endpoint.
10/02/2015
43
Service
Description
(DSL)
Business
Code
(Java)
Application
Code
Runtime
Framework
WAS
Application
CICS
Application
Generator
EJB
JAXWS
HTTP
CICSLink

Page
reserved
The Project BOES
Where we end up
10/02/2015
44
 The same business code runs in CICS and in WAS
 Can be used in BATCH
 Foundation for many other projects

Page
reserved
The Project BOES
Some highlights
10/02/2015
45
Generative approach
80%
of the code is generated.
A developer does not need
to know the platform he
implements for
Less error prone due to
strict framework
Continuous integration
Completely buildable via
Apache Maven
Each build is conducted in a
clean and consistent
environment and does
automatic checks for code
quality, known bugs, unit
tests, generation of
documentation, and many
more
Client generation
Automatically generated
clients are:
WAS:
- JAXWS
- Remote EJB
- Direct Java Call
CICS Link:
- Cobol Copy Book
- Assembler DSect

Page
reserved
The project „Interface for OAM“
10.02.2015
46

Page
reserved
Motivation
Provide a simple, easy to maintain and uniform interface for storing,
archiving and retrieving Files
 Enable usage of IBM OAM for various clients
 Batch jobs
 CICS transactions
 WebSphere applications via CTG
 Windows Applicaitons
10/02/2015
47

Page
reserved
Motivation
 Developed in a „Java only“ department
 Calls an Assembler module via LINK, which utilizes OAM Assembler
Macros
 Already used in WebSphere applications & batch jobs and more to come.
 Currently maintained by CICS - Administration
10/02/2015
48

Page
reserved
Stumbling blocks
10/02/2015
49
The Porta Rosa is a Greek street dating from the 3rd to 4th century BC Creative Commons License

Page
reserved
Stumbling blocks
Java agent and boot delegation
10/02/2015
50
CICS Region
Application
1
Application
3
Application
2
Monitoring
Agent
Scenario:
Usage of monitoring agents without
declaring it as an OSGI dependency !
org.osgi.framework.bootdelegation=<agent Package>
CICS 4.2
osgi.compatibility.bootdelegation=true
org.osgi.framework.bootdelegation=<agent Package>
CICS 5.2

Page
reserved
Stumbling blocks
Deadlock when linking from Java to Java
10/02/2015
51
JVM Server
Threadlimit 10
Application
1
Application
2
Link
Message Queue Trigger
Carefully tune
threadlimits !

Page
reserved
Stumbling blocks
Single connection vs. WAS nested transactions
10/02/2015
52
[jcc][50053][12310][4.15.105] T2zOS exception:
[jcc][T2zos]com.ibm.db2.jcc.t2zos.T2zosConnection.initialize:
Multiple Connections are disallowed in current pre-existing
attachment environment ERRORCODE=-4228,
SQLSTATE=null
WAS developers usually don‘t care much about the number of
physical connections they use !
In CICS they have to !
Often caused by using nested transactions

Page
reserved
Stumbling blocks
ThreadLocal and the leaking memory
10/02/2015
53
Happens within a sample shipped with CICS
com.ibm.cics.samples.SJMergedStream
JVM Server
Task1
Task2
Taskn
Thread Data
Task1 <data>
Task2 <data>
… <data>
Task n <data>
JVM Memory
 Each transaction gets a new JVM
thread
 Memory is not always cleaned up
properly
 JVM is leaking Memory untill
OutOfMemory

Page
reserved
Conclusion
10/02/2015
54
+ Most young developers at DATEV prefer Java instead of COBOL/C
+ Java in CICS and Batch opens the world of mainframe programming to
many J2EE developers
+ To minimize response times, it could make sense to move data-intensive
applications close to the data (DB2, VSAM).
+ The power and simplicity of JAVA can be quite easily leveraged by classic
CICS Programs
 Many problems from the distributed world have been also ported

Page
reserved
Vision for the future
10/02/2015
55

Page
reserved
Challenges
10/02/2015
56
Isolated Applications Application specific
tuning
Portable Applications

Page
reserved
The plan
10/02/2015
57
 Applications are developed compliant to specific J2EE profiles (e.g. WEB
Profile, Full Profile, …)
 Many individual WAS Liberty servers configured and tuned to application
needs
 System operations can decide on which platform the application will run
 Coequal runtime platforms based on WAS Liberty
 CICS on zOS
 AIX
 Linux
 Windows
 ….

Page
reserved

Batch Java Project
zOS
CICSCalling Program
JVM Server (DFH#OSGI)
DU055COMMAREA
(Interface for DU055)
01 DFH-COMMAREA
05 DATUM PICX (?)
05 ZEIT PICX (?)
05 OPCODE PICX (?)
05 VERSION PICX (?)
05 RETURN-CODE PICX (4)
05 LAENGE PICX (5)
05 DATENSATZ PICX (?)
EXCI Accessmodule
Initializes Commarea
with needed Values
DU055
Initializes Input Objects
with Data from the
COMMAREA and calls the
Kernprüfung and copies the
Returncode in COMMAREA
Kernprüfung
The actual Business Logic
that checks the data

Other Projects
● AXIS2 Web Services running in JVM Server
● JAX WS Services running in Liberty
● Using JSON Feature Pack in COBOL
● ...

The Goal
Possible Target SzenarioToday (sample scenario)
System z
Cobol-Modules
New functions
How to
implement?
DB2
How to use
services of other
systems?
Cobol-Modules
New functions realised
with Java
DB2
Java-Modules
Hard to
maintance/change?
System z
Efficient
programming
model
Reduced
maintenance
costs
Standard
interfaces
External Systems
Stepwise
integration
Modernisation
Java Modul
Java Modul

© 2014 IBM Corporation7
IBM
Questions
Tobias Leicher
Client Technical Professional & zChampion
– CICS & CICS Tools
IBM Allee 1
D-71139 Ehningen
Mobil: 0151 – 15 16 24 89
Mail: tobias.leicher@de.ibm.com
Foto
VIELEN DANK FÜR IHRE AUFMERKSAMKEIT.

What’s next…
More of my sessions
#ASZ-3983: CICS Java Real-Life Projects, Featuring Datev
#ASZ-3978: Why Is Java So Different?: A Session for Cobol/PLI/Assembler
Developers
#ASZ-5927: Meet the Experts of Generation z—Driving Innovation on the
Mainframe
More Cloud sessions
#ASZ-2829: Liberté, Égalité, Fraternité—Viva the CICS and WebSphere Mini Revolution
#ASZ-6481: Java and CICS—A Perfect Match
#ASZ-1841: WebSphere Liberty Profile Support for Java Batch and the JSR-352 Specification,
Featuring Sicoob
Collect a z Passport sticker here, and at…
@IBM_CICS slideshare.net/IBM_CICSfacebook.com/IBMCICS ibm.com/cics
WIN!

Get a lightning start: Key InterConnect 2015 sessions
#2829 Mon 2:00-3:00Liberté, Égalité, Fraternité—Viva the CICS and WebSphere Mini
Revolution
#1670 Tue 3:30-4:30 IBM WebSphere Liberty z/OS Connect: A Technical Introduction
#4032 Wed 9:30-10:30 Meet the Winners of IBM’s Mainframe Mobile App Throwdown
2014
#6482 Thu 11:00-11:50 What is the Mainframe Mobile App Throwdown and How Do I
Register? Register now at
ibm.biz/mmathrowdown
and submit your app by April 12th
Mobilize your mainframe in our fun app-building contest
for
z Systems clients & business partners!
The Mainframe Mobile App Throwdown
is back for 2015!

Need expert help?
10
CICS Development Services, for worldwide services assistanceCICS Development Services, for worldwide services assistance
Bringing CICS development expertise directly to your doorstep
Email us CICSDTS@UK.IBM.COM
Bringing CICS development expertise directly to your doorstep
Email us CICSDTS@UK.IBM.COM
Get a deep dive into your systems
with a CICS health check
Get a deep dive into your systems
with a CICS health check
Want to know more about CICS and
Java? We offer tailored Java
education
Want to know more about CICS and
Java? We offer tailored Java
education
Move forward with mobile with our
customized mobile workshop
Move forward with mobile with our
customized mobile workshop
Soar into the cloud with our
tailored cloud workshop
Soar into the cloud with our
tailored cloud workshop
Need to optimize your systems?
Then ask about a performance
optimization engagement
Need to optimize your systems?
Then ask about a performance
optimization engagement
Get the low down on performance
with a CICS performance workshops
Get the low down on performance
with a CICS performance workshops
Need to modernise your workload in
CICS? Ask about a integration and
connectivity engagement
Need to modernise your workload in
CICS? Ask about a integration and
connectivity engagement
Need some help upgrading to the
latest release? Then ask about our
upgrade workshop
Need some help upgrading to the
latest release? Then ask about our
upgrade workshop
Need to reduce cost by optimizing
your systems? Then a performance
optimization engagement may be
for you
Need to reduce cost by optimizing
your systems? Then a performance
optimization engagement may be
for you
Need something different? Then we
can build a customized workshop,
just for you!
Need something different? Then we
can build a customized workshop,
just for you!
Availability a concern? Then try
our High Availability workshop
Availability a concern? Then try
our High Availability workshop
Visit ibm.com/cics
then click ‘Services’

Thank You
Your Feedback is
Important!
Access the InterConnect 2015 Conference
CONNECT Attendee Portal to complete
your session surveys from your
smartphone,
laptop or conference kiosk.

Notices and Disclaimers
Copyright © 2015 by International Business Machines Corporation (IBM). No part of this document may be reproduced or transmitted in any
form without written permission from IBM.
U.S. Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM.
Information in these presentations (including information relating to products that have not yet been announced by IBM) has been reviewed for
accuracy as of the date of initial publication and could include unintentional technical or typographical errors. IBM shall have no responsibility to
update this information. THIS DOCUMENT IS DISTRIBUTED "AS IS" WITHOUT ANY WARRANTY, EITHER EXPRESS OR IMPLIED. IN NO
EVENT SHALL IBM BE LIABLE FOR ANY DAMAGE ARISING FROM THE USE OF THIS INFORMATION, INCLUDING BUT NOT LIMITED
TO, LOSS OF DATA, BUSINESS INTERRUPTION, LOSS OF PROFIT OR LOSS OF OPPORTUNITY. IBM products and services are
warranted according to the terms and conditions of the agreements under which they are provided.
Any statements regarding IBM's future direction, intent or product plans are subject to change or withdrawal without notice.
Performance data contained herein was generally obtained in a controlled, isolated environments. Customer examples are presented as
illustrations of how those customers have used IBM products and the results they may have achieved. Actual performance, cost, savings or
other results in other operating environments may vary.
References in this document to IBM products, programs, or services does not imply that IBM intends to make such products, programs or
services available in all countries in which IBM operates or does business.
Workshops, sessions and associated materials may have been prepared by independent session speakers, and do not necessarily reflect the
views of IBM. All materials and discussions are provided for informational purposes only, and are neither intended to, nor shall constitute legal
or other guidance or advice to any individual participant or their specific situation.
It is the customer’s responsibility to insure its own compliance with legal requirements and to obtain advice of competent legal counsel as to
the identification and interpretation of any relevant laws and regulatory requirements that may affect the customer’s business and any actions
the customer may need to take to comply with such laws. IBM does not provide legal advice or represent or warrant that its services or
products will ensure that the customer is in compliance with any law.

Notices and Disclaimers (con’t)
Information concerning non-IBM products was obtained from the suppliers of those products, their published announcements or
other publicly available sources. IBM has not tested those products in connection with this publication and cannot confirm the
accuracy of performance, compatibility or any other claims related to non-IBM products. Questions on the capabilities of non-IBM
products should be addressed to the suppliers of those products. IBM does not warrant the quality of any third-party products, or
the ability of any such third-party products to interoperate with IBM’s products. IBM EXPRESSLY DISCLAIMS ALL WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE.
The provision of the information contained herein is not intended to, and does not, grant any right or license under any IBM patents,
copyrights, trademarks or other intellectual property right.
• IBM, the IBM logo, ibm.com, Bluemix, Blueworks Live, CICS, Clearcase, DOORS®, Enterprise Document Management
System™, Global Business Services ®, Global Technology Services ®, Information on Demand, ILOG, Maximo®,
MQIntegrator®, MQSeries®, Netcool®, OMEGAMON, OpenPower, PureAnalytics™, PureApplication®, pureCluster™,
PureCoverage®, PureData®, PureExperience®, PureFlex®, pureQuery®, pureScale®, PureSystems®, QRadar®, Rational®,
Rhapsody®, SoDA, SPSS, StoredIQ, Tivoli®, Trusteer®, urban{code}®, Watson, WebSphere®, Worklight®, X-Force® and
System z® Z/OS, are trademarks of International Business Machines Corporation, registered in many jurisdictions worldwide.
Other product and service names might be trademarks of IBM or other companies. A current list of IBM trademarks is
available on the Web at "Copyright and trademark information" at: www.ibm.com/legal/copytrade.shtml.

3983 cics java real life projects

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Viewers also liked

Viewers also liked (20)

Similar to 3983 cics java real life projects

Similar to 3983 cics java real life projects (20)

More from nick_garrod

More from nick_garrod (20)

Recently uploaded

Recently uploaded (20)

3983 cics java real life projects