My Web AS has only Java stack

Hi ,
My MI server has only Java Stack installed. Can I still develop mobile application without an ABAP stack?
If yes, please suggest any helpful link or methods to go by.
Also please give me a link from where I can download MI Client SP13 because i have browsed through the SAP market place but couldn't find it.
Valuable suggestions would be rewarded!!
Padmarajan.

Hi Padma,
If you have WAS, that means you have both the Java stack as well as the ABAP stack. I am not basis person, but I think you need to configure them.
MI Client is not available on any website...you can only get it from servive.sap.com/swdc, your SAP cd or you can download it from the bsp link ( refer
http://help.sap.com/saphelp_nw04/helpdata/en/a7/893a5889e08b41b615688b1a93b559/frameset.htm )
Regards,
Rahul

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NW MI 7.1 has only ABAP stack. what about JAVA stack ?

Hi,
Recently i installed NW MI 7.1 EHP1 system. It has only ABAP stack. But for MI configuration i hope we require JAVA stack too.
Hence can we use some other standalone JAVA system for the MI front end configuration ? If so please tell me what are the usage types are required for that Standalone JAVA.
Thanks & Regards,
Bala

Hi,
EPC or standard AS Java usage types would be required for MI configuration.
Suggest you to go through the Master guide at https://service.sap.com/~sapidb/011000358700000391152007E.pdf
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Srikishan

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Hello, how to call web-service using only java code. I can call it from BPM process or Web Dynpro Java Application, but if I need to call it from ejb component?

I'm found answer:
Java and SAP Portal blog: How to call web service from java code example

Uninstalling only Java stack

Hi,
We have ABAP + Java stack on our PRD system. Can we uninstall only Java stack without disturbing the ABAP stack ?
Please suggest the procedure to perform this and also the post steps to be done if any.
Windows 2003 IA64+ ECC6.0 + Oracle 10.2

Hi
In principle, waht the UNINSTALL does is:
1. delete the relevant data from DB
2. delete the relevant files/folders from File System.
So if you do want to remove the Java add-in instance, you can do this manually even it is NOT recommended, main steps:
1. delete the Java DB schema, should be SAPDB<SID>
2. adjust the profiles to remove all the java stack relevant settings.
3. remove the j2ee and SDM folder from file system.
Probaly you want to uninstall the Java stack as you don't need and, by uninstallig it, the abap performance might be better,
but to achieve this, you just need to set the rdisp/j2ee_start to 0, or just comment out all the parameters used by the java stack
in the instance profile, and this applies to all the platform, not matter Windows or Unix.
Here is an example of the profile parameters in <SID>_DVEBMGSXX_<hostname>
exe/j2ee = $(DIR_INSTANCE)/j2ee/os_libs/jcontrol
rdisp/j2ee_start_control = 1
rdisp/j2ee_start = 1
rdisp/j2ee_timeout = 600
rdisp/frfc_fallback = on
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jstartup/trimming_properties = off
jstartup/protocol = on
exe/jlaunch = $(DIR_INSTANCE)/j2ee/os_libs/jlaunch
jstartup/vm/home = /usr/java14_64
INSTANCE_PROPERTIES = $(DIR_INSTANCE)/j2ee/cluster/instance.properties
SDM_PROPERTIES = $(DIR_INSTANCE)/SDM/program/config/sdm_jstartup.properties
jstartup/instance_properties = $(INSTANCE_PROPERTIES);$(SDM_PROPERTIES)
ms/server_port_0 = PROT=HTTP, PORT=8100
Regards,
Thunder

Upgrade only Java stack to Ehp1 (SAPehpi)

Hi Gurus,
We are currently on PI 7.1, and is considering to upgrade to Ehp1 (primarily for IDoc packaging feature)
and since the IDoc packaging feature is delivered thru a Sender IDoc adapter, which means this seats on the Adapter Engine already (Java stack)
I saw the document for SAPehpi (Upgrading to Ehp1 for a PI 7.1 system) and if i understand it correctly there are two options,
one ABAP + JAVA upgrade and the other is JAVA only upgrade.
So does that mean I can upgrade my Adapter Engine (AAE) to Ehp1 using the JAVA only upgrade option?
My apologies in advance as i have no experience yet in upgrading 7.1 systems
Thanks

> So with that, if we stay on 7.1, then we don't have an option for IDoc packaging (IDoc package inbound to PI will be split into individual IDocs, then will have to use an integration process Collect to re-package it as 1) ?
Even when you apply EhP1, you can use IDoc packaging only, if your sender system is also on SAP BASIS 7.1 EhP1 or SAP BASIS 7.0 Ehp1.
So you should confirm this first.

System Refresh getting error "Your System has corresponding JAVA stack"

Hello Experts,
I am trying to do a system refresh on my HCM system which is ABAP only.
When I run SWPM --> Generic Installation Options -->MS SQL Server --> Database Tools --> Database copy completion, I get the following error.
Version Information is as follows:
Kernal is 721
ECC 6.0 Basis 702 level 9 (Netweaver 7.02)
Windows server is 2008 R2 standard
MSSQL is 10.50.4000
Yes, I have done my research and failed also has a High OSS message open with SAP. This issue is very critical so any help as early as possible is highly appreciated.
Thank You.

Hi Muhammad,
It looks like you have a Java schema in your database, and sapinst is finding that and therefore assuming it's a double-stack system. Perhaps this system used to be double-stack at one time, and then was split? In the trace file I saw the following entries, at different points:
SID: HCT
DbServer: USALSQLT01\HCMT
DbName: HCT
ABAP Schema: hct
Java Schema: SAPHCTDB
TRACE      2014-04-18 09:26:36.318
Found corresponding java schema SAPHCPDB. Aborting.
TRACE      2014-04-18 09:26:36.333 [iaxxgenimp.cpp:325]
           CGuiEngineImp::showDialogCalledByJs()
showing dlg d_doubleStackSystemError
TRACE      2014-04-18 09:26:36.333 [iaxxgenimp.cpp:335]
           CGuiEngineImp::showDialogCalledByJs()
<dialog sid="d_doubleStackSystemError">
<title>Unsupported System</title>
<dialog/>
So, that seems to be the cause. If you're sure this is only supposed to be a single-stack ABAP system, you might try deleting the SAPHCPDB schema using database tools and then re-running sapinst.
While you're at it, it looks like you might have an old copy of Sun JRE 1.4.2 still installed (perhaps from the old days when that version was required to run sapinst). In the environment variables in the trace I saw:
JAVA_HOME=C:\j2sdk1.4.2_29-x64
You might want to uninstall that if you don't need it anymore, and unset that environment variable. Also, your swap size looks low for a 64-bit system with 8 GB RAM, even for a test system:
Swap size (MB): 9998.18
Best regards,
Matt

How to enable ping service on java-stack only system

I have installed SAP NetWeaver 7.0 - Java Trial on local host.
How can you activate the ping service there?
It should work under "http://localhost:50000/sap/bc/ping"
(I know how to activate it with transaction SICF in an abap system, but I have java-stack only here, so I can't call transactions. I can only use the Visual Admin, right?, but there I could not detect a ping service so far)
More detailed:
I created system "SAP_WebDynpro_XSS". (this is necessary for connecting to ECC abap backend for ESS Packages) and set following parameter:
template:"SAP system using connection string"
     category: Web Application Server
          Web AS host name: chrisSAP:50000
          Web AS path: /webdynpro/dispatcher/
          Web AS protocol: http
But when I test the "SAP Web AS Connection" for this system, I got following error:
7. The Web AS ping service http://chrisSAP:50000/sap/bc/ping was not pinged successfully. If the ping service is not activated on the Web AS, you can try to call the ping service manually.
8. An HTTP/S connection to http://chrisSAP:50000/webdynpro/dispatcher/ was not
obtained successfully; this might be due to a closed port on the Firewall.
I guess step 8 did not pass because step 7 failed, and not because of a closed port or firewall (I made sure everything is open.)
The strange thing is that the connection test fails, but the connection seems to work fine!
I mean I can see the front ESS page in the portal when logging in with an ESS-user, and there are no errors in the log. If I change the SAP_WebDynpro_XSS parameters to some other made-up values, then the front ESS page does not come up and some errors appear with "SAP_WebDynpro_XSS" inside.
That proofs that the connection is working despite the failed connection test, right?. But what can I do that the connection test passes? It seems that somehow SAP has hardcoded the path "/sap/bc/ping" which usually exists on an abap system. But I have java-stack only, so how can I tell that the function that runs the test?
A system connection test fails, but the connection is working fine!
If someone could explain that to me...

Dear Srini Nookala,
thank you for your answer. Unfortunately I don't understand the relation of my question to your answer.
>> check with OSS note 1019335 SAP NetWeaver AS Java 6.40 SP21
I have Version 7.0 SP14. I read the OSS note, but there are around 100 changes listed. I read them all, but couldn't figure out one that has to do with ping and system test. So which sentence inside the note are you referring to?
>> The problem is due to JCo parameters configuration not properly, Ask Basis team, they will do it.
I am basis team. I configured the JCo properly as described in manual and tested them afterwards. They run successful. Also all the links that you gave refer to JCO connections about how to set them up and test them. But what have JCO connections to do with System-connection tests? As far as I know JCO-connections are not used for system connectivity tests. You can set them up independent. I understand that JCO-connections are used for getting data from backend servers. But the system "SAP_WebDynpro_XSS" is defined for determing the webdynpros on localhost (frontend, not backend).
So please can you explain me what JCO-connections which refer to remote hosts have to do with a ping service on local host that cannot be reached? And which part would be not configured "properly"? Timeouts? user?
To define my question more properly:
Is it possible to make the connection test work on a java-stack only host for a system that refers to itself (localhost)? Or is it a known bug?
Some sub-questions
Am I using the right system template (I am using "SAP system using dedicated application server")
I have no abap on local host (chrisSAP). Only java stack. Usually path ..sap/bc/ping refers to an abap system, right? So in my opinion I have 3 possibilities:
- install abap-stack on local host (portal) and activate ping service.
- somehow install a ping service that runs under the given URL in Visual Admin (how?)
- somehow tell the connection test to skip pinging and continue test. (How?)
Any additional advice would be highly appreciated.

Web Dynpro without Java stack?

Hello
a simple question : Is is possible to deveop and run Web Dynpro applications on a system with no Java stack? It is a ECC 6.0 system.
Thanks
A.

Hi Aleksandra,
Yes it is posible to develop and run Web Dynpro applications without Java Stack.
For Web Dynpro for ABAP :- Java stack not required, you can do with SAP System T-Code - SE80 if Web Dynpro Component available in your sap system.
For Web Dynpro for Java :- You must require Java Stack.
Hope this will helps you.
Thanks
Arun Jaiswal

Single-Sign-On (SSO) configuration on JAVA Stack through HTTP Header method

Hello SDN community,
in the context of a Proof of Concept, we are testing the integration of Microsoft Sharepoint Portal with SAP Backend (addin) systems.
As the architecture impose use an external scenario (access from the internet), we couldn't use the Kerberos (SPNego) solution and thus we chosed the http header solution which in short uses an intermediary web server (in this case the IIS of the MOSS solution) which will act as authority.
I miss information on how the workflow works for this http header authentication method. Through the visual administrator of the addin JAVA stack, it is possible to configure each application with a customized authentication (a choice of security modules). But this all that I know.
My task is to configure SSO. From a sharepoint portal, the user should be able to access Web Dynpros and BSPs. I imagine that the very first call to a webdynpro or bsp (or maybe when we log on the sharepoint portal), the request to the WDP or BSP will first be forwareded by the intermediary server to the JAVA stack (or is it the SAP dispatcher that has to be configured).
Is there an application to be built on the java stack to deal with the authentication, modify http header?
What will the Java stack return? a sap long ticket? a token?
How will the redirect work (to by example a BSP which is in the ABAP stack)?
SAP preconise to secure with SSL the link between the intermediary web server and the JAVA stack, is IP restriction also a solution?
A lot of questions about how this SSO http header should work,
I would be very greatful for any help, or info,
Kind regards,
Tanguy Mezzano

Hi Tanguy,
to tell you the truth I'm really unsure about what you are trying to achieve. When I started posting to your thread I thought all you wanted was trying to access your J2EE engine via Browser and authenticate against the engine using HTTP Header Variables. Nevermind:
Here are some answers to your question:
in fact I did succeed, the problem was that even after domain-relaxation done by the J2EE, I had to change the domain of th SAP cookie to the bbbb.domain.com to be understood (I would have thought that all hosts in/under domain .domain would have accepted such a cookie but it seems that no...).
The server does not care about the domain because Cookies in an HTTP Request do not contain any domain information. The domain is just important when the Cookie is set by the server so your Client (Browser) will know in which cases the Cookie may be sent or not. So if your domain is xxx.yyy.domain.com and your cookie is issued to .domain.com then your Browser will definitely sent it to all hosts under .domain.com (This includes xxx.yyy.domain.com etc.)
My current scenario is: in a first request get a SAP Logon Ticket from the Java Stack, then change its domain and then directly call the backend with it.
You can do that but there is no Client involved in this scenario. So this is useful if you just want to test the functionality (e.g. authentication to J2EE using Header Variables (This works finally!!!) and then use the fetched Logon Ticket to test SSO against any trusted Backend!!)
So everything's is in a Java Client application without using any redirection.
If I understand you, you're solution is from the Browser call a servlet (which is deployed on the Java Stack and has no authentication schema) by passing to it our http header.
No, you should initially authenticate somewhere! I thought that maybe you had some resource you access before accessing the Java Stack. This could be any application (e.g. deployed on a Tomcat or JBOSS or other server or if you like even SAP J2EE). After authenticating there you are aware of the username and could use it to procceed (e.g. Authenticate against the J2EE using the same user and HTTP Header authentication for that particular user!)
That servlet will transfer the http header (with the HttpClient app) in order to get from the Java Stack a SAP Logon ticket, and then to redirect to the resource and by sending back the cookie in client browser. Am I correct?
This was just a suggestion because I realized that there was no Client ever involved in any of your testing (looked strange to me!). I was just thinking that it would be easier for you to just get the Cookie into your Browser so your Browser would do the rest for you (in your case finally send the Logon Ticket Cookie to your Backend to test SSO using Logon Tickets!).
The AuthenticatorServlet somehow serves as a Proxy to your client because your client is not able to set the Header Variable. That's why I initially suggested to use a Proxy (e.g. Apache) for that purpose. The problem is just that if you use a Proxy you will have to tell it somehow which username it should set in the Header Variable (e.g. using a URL Parameter or using a personalized client certificate and fetch the username (e.g. cn=<username> from the certificate!)
This way of doing would simplify the calls for sso for each new application needing authentication, instead of having all code each time in it...
I'm stuck again! Do you want to authenticate an End User or do you want to authenticate an application that needs to call any resources in your Backend that requires authentication?
So my problem now, is how to call the servlet from the client browser:
I'm trying to call my servlet from the browser but I don't succeed. I am able to understand how to reach a jsp from the Java Stack, but not to reach a servlet. I don't find the path to my servlet:
<FORM method="POST" action="SSORedirect2" >
A JSP is a servlet too. There is just no JAVA Class involved!
You do not need any POST Request to invoke a Servlet.
I see that my servlet is deployed, but I don't how what path to give to my form to invoke the servlet, here follows my web.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE web-app (View Source for full doctype...)>
- <web-app>
<display-name>WEB APP</display-name>
<description>WEB APP description</description>
- <servlet>
<servlet-name>SSOredirect2</servlet-name>
<servlet-class>com.atosorigin.examples.AuthenticatorServlet</servlet-class>
</servlet>
- <servlet>
<servlet-name>SSORedirect2.jsp</servlet-name>
<jsp-file>/SSORedirect2.jsp</jsp-file>
</servlet>
- <security-constraint>
<display-name>SecurityConstraint</display-name>
- <web-resource-collection>
<web-resource-name>WebResource</web-resource-name>
<url-pattern>/*</url-pattern>
<http-method>GET</http-method>
<http-method>POST</http-method>
</web-resource-collection>
- <auth-constraint>
<role-name>DefaultSecurityRole</role-name>
</auth-constraint>
</security-constraint>
- <security-role>
<role-name>DefaultSecurityRole</role-name>
</security-role>
</web-app>
If you have an AuthenticatorServlet Class all you need is to add the Servlet Mapping in your web.xml file
e.g.
<servlet>
<description>
</description>
<display-name>AuthenticatorServlet</display-name>
<servlet-name>AuthenticatorServlet</servlet-name>
<servlet-class>com.atosorigin.examples.AuthenticatorServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>AuthenticatorServlet</servlet-name>
<url-pattern>/AuthenticatorServlet</url-pattern>
</servlet-mapping>
You can directly call the Servlet in your Browser by calling the URL provided in the url-pattern of your Servlet mapping ( in this case /AuthenticatorServlet). The engine will invoke the Class "com.atosorigin.examples.AuthenticatorServlet" in the background and do whatever you defined there!
I have also to pass my http header and the redirectUrl in the GET request.
If you like! I just suggested this for testing purposes. As I stated before you need a way to tell your proxy (or in your case AuthenticatorServlet) which user should be set when calling the Engine in order to authenticate using HTTP Header. You could use the URL Paramater to define the user you actually want to use when you set the Header Variable.
I just introduced the redirectURL because you were talking about redirects all the time. So if you finally want to call the Backend you could define the Backend URL in the redirectURL Parameter and the Servlet will make sure that you are redirected to this location after the whole process!
Thx for your input very helpful,
But again 0 points
Cheers

ABAP+Java Kernel and only Java Kernel

Hi Friends,
Is there any difference in ABAP+Java Kernel and only Java Kernel?
Can we use the kernel for above both from the same location as below?
1#
Support Packages and Patches> Additional Components> SAP Kernel> SAP KERNEL 64-BIT UNICODE> SAP KERNEL 6.40 64-BIT UNICODE
Following Files
DB Dependent - ORACLE
          SAPEXEDB_175-20000227.SAR
          DBATL640O92_44-20000227.SAR
Database Independent
          SAPEXE_175-20000226.SAR
Assuming above SAR files contain R3trans, R3load, tp ,... also.
2#
As per my knowledge SAP has given one more path to download J2EE SP's which contains Kernel and J2EE Support Packages.
http://service.sap.com/patches --> Support Package and Patches -> Entry by Application Group -> SAP NetWeaver -> SAP NetWeaver -> SAP NetWeaver 04 -> Entry by Component -> Application Server Java -> SAP J2EE Engine 6.40 -> J2EERT19_0-10001982.SAR/J2EERT20_0-10001982.SAR (OS Independent) and CTRLDB219_0-20000114.SAR(OS Dendependent)
What is the difference between above two kernels?
1# contains R3trans, R3load, tp ...etc which is exclusively used by ABAP Stack related functions. The startsap script used here would check R3trans -d authentication successful before starting database and then only it starts the database from sidadm. I observed OPS$ users available in only ABAP schema SAPSID but not available in SAPSIDDB. If I use the kernel downloaded from 1# for Java Stack only system, startsap would fail as R3trans authentication fail as there is no ABAP schema in Java systems.
This applies well for ABAP+JAVA or only ABAP based systems.
If I use only JAVA Stack based system can I use the kernel downloaded from 1# . What is the kernel and SP available in 2#? Is this also contains the same kernel given in 1# or it is different. I also observed in JAVA they are not calling Kernels by Patch No like 154, 175... they call it by SP19. Please correct me if I am wrong.
Did anyone come accross this type if issue? I would appreciate if anyone can clarify my questions given above.
My main target is to have clear strategy for ABAP+JAVA, ABAP, JAVA kernels to avoid mess up. Which one to download? What is best practice? Differences?
Thanks and Regards
Prasad

Hi Sacha,
Thank a lot for your answer I am clear now. Before rewarding points to you.
I have final question.
You mean that there is not seperate kernel for Java Stack Systems.. When we apply SP11 or SP19 by default it applies Kernel and also support packages w.r.t the SP. Do we have option to seperate Kernel and Support package while applying SP's for Java System?
If we take for example SAP NW 2004 (WAS 640) latest kernel is 175 (I mean ABAP+JAVA). If I want to know the latest kernel for Java Stack system, Do I need to say it is at level SP19 or check the sapwebdisp -V (Resepctive patch level)?
For ABAP system we check disp+work -V to get the source kernel version. How to justify the source kernel version for Java System?
As per SAP Note: 710914 - Upgrading the J2EE Engine Startup Framework after applying SP for Java System, Do we need to upgrade J2EE Startup Framework?
Thanks and Regards,
Prasad

Upgrade from SCM 5.0 to SCM 7.0 without Java Stack

Hello,
My query is we have a SCM 5.0 system which has a java stack in it. But now we are going to upgrade it to SCM 7.0. - Is SCM 7.0 has a java stack ?
If it doesn't have , can we upgrade SCM 5.0 to SCM 7.0 without Java Stack ? Is it posssible to upgrade without Java Stack or not ?
Is it possible that we can convert Java Stuff into ABAP web dyn pro ? If yes , how shall we can achieve it ? If not, how shall we proceed in an alternate way ?
Thanks for your help in advance.
Madhu

Hi Manoj,
Yes the system is running okay and I can login without problem. The question I have is that the upgrade program started with default system number 00 loaded, where I don't know how to change it to match our system setting. Our system is currently having system number 01.
Thanks,
Eric

ABAP and Java stack in Portal

Hi All,
I am working on a BI7 system, BI 7 has both java stack and abap stack.
When i execute the query in query designer it opens in java web, the same query when i execute in portal,it gets executed in ABAP.
Please clarify me where is the setting available these settings in Portal or in BW system?...
regards,
Rakesh.

There is an option in portal content, the way the query should run in run time.

Java Stack Vs Dual Stack in Pi 7.3

Hi experts.
I open this thread because I'd like to know your opinion about the newJava installation option in SAP PI 7.3. In previous realeses (7.0,7.1) I felt more comfortable and safe in abap stack and I'm a little afraid about working only with java stack.
I'd like to know advantages and disadvantages to choose java stack instead of dual stack, why you'd choose one of two options or both in your nexts customers.
Thank u so much and happy new year!!!!

Java Stack or Dual Stack in 7.3
Java Stack alone: Almost all standard adapters including HTTP, IDOC and Proxy are all available in this stack. you need to use Integrated Configuration object for this. You are basically going to use Advance Adapter engine alone for the entire processing.
Pros:
No persistance steps here. So you would improve performance many folds for sure.
Throughput is also improved very much.
since 7.3, Solution Manager is available for monitoring inaddition to RWB and NWA. So monitoring would not be issue.
If you are looking for real performance improvement, Single stack Java to go.
Cons:
Abap mapping is not supported.
Message split to multiple receivers are not completely supported.
BPM interfaces are not seamless migration here. SAP 7.1 and lower versions support BPEL wheras 7.3 supports BPMN standards. So you might have to tweak a bit to modify existing interfaces here
Dual Stack:
Your option is pretty open. If you need some specific interfaces to handle only java stack, still that is possible and increase the performance. Also if you have lot of existing interfaces that requires BPM interfaces, ABAP mapping , Multiple split /branching etc.
still dual stack is the better option now. Here developer decides according to the requirement.
Still safe mode is going for Dual Stack for now and change in the future to single java stack alone.

How to install java stack pathes

hi friends
i have installed EP and DI in a box and sp level is sp09. now i want to apply upto sp13. i got sp 11 java stack with the softwaer its in dvd and its having lable.asc file . i would like to know how apply it .
my question is
1 . how to install the java stack sp 11 dvd which contains (lable .asc).
2 . do i need to fallow the sequence to apply the stacks. like (sp 10,11.12,13) only java stack
3. what is the processor to apply stacks .
4 . can i install the stacks when the system is down.
its urgent
regards
raja

Hi,
You can apply stacks when server is running. Make sure server is up and running. You can then start installing the stack 13 directly. (No need for 10, 11,12 etc).
Regards,
Harini S

Can i start only Java Instance

HI,
I installed both JAVA+ABAP stack in Nw2004s.can i start only Java STACK(java instance) with out starting the ABAP instance from SAP MMC

Hi Surya,
Under normal circumstances the persistence store for an ABAP+JAVA stack is the ABAP system, therefore, your system may not work without the ABAP stack. If you need just the java stack, I would recommend that you install a JAVA only system.
Sajit

My Web AS has only Java stack

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