SAP NetWeaver Application Server, Java EE 5 Edition on Linux?

[doug_mclaughlin2]

When does SAP plan to support Java EE 5 on Linux? Based on [note 1172419|https://service.sap.com/sap/support/notes/1172419], "The only certified Java VM on Linux x86_64 for SAP NetWeaver 04 and 7.0 based products is the 1.4.2 version from IBM."

I read elsewhere in [this thread|; that a new version was being tested, but that was two years ago. Any idea on the progress of this testing and when a JEE 5 certification will be available for Linux?

[markus_doehr2 · Accepted solution]

PI 7.1 already uses the SAP JVM 5.1, CE 7.2 uses SAP JVM 6.1.

All other products (Portal etc.) are not yet "ported".

Markus

[doug_mclaughlin2 · Accepted solution]

Thank you for the reply, Markus.

Any idea when these products will be ported?

I see from the [PAM|http://service.sap.com/~form/handler?_EVENT=DISP_NEW&_APP=00200682500000001303&00200682500000002804=01200615320900001418] that the SAP JVM 5.1 was released for 64-bit Red Hat in June of last year. Is it just portal that's not supported on SAP JVM 5.1? Or all of NetWeaver AS?

I apologize for my confusion and appreciate your bearing with me.

Thanks.

Doug

[markus_doehr2 · Accepted solution]

> Any idea when these products will be ported?

No.

> I see from the [PAM|http://service.sap.com/~form/handler?_EVENT=DISP_NEW&_APP=00200682500000001303&00200682500000002804=01200615320900001418] that the SAP JVM 5.1 was released for 64-bit Red Hat in June of last year. Is it just portal that's not supported on SAP JVM 5.1? Or all of NetWeaver AS?

It's basically all of Netweaver AS. Only PI and CE use newer JVM versions, all others still use 1.4.2. That's also a reason why SAP ported the 1.4.2 VM themselves to avoid running out of vendor support for those old versions.

> I apologize for my confusion and appreciate your bearing with me.

Welcome, no problem. There just are no products (as of now) for SAP JVM 5.x or 6.x (apart from PI and CE).

Markus

[hannes_kuehnemund · Accepted solution]

Hi Doug

Any idea when these products will be ported? 

I think some background information might be needed to understand the situation. There have been changes in data types between Java 1.4.2 and Java5. Therefore, one has to check the coding and has to do some porting of the application. The issue is not that we as SAP cannot port out coding, this is trivial. The issue is the customer coding that was developed on Java 1.4.2. . In case SAP moves the already released and Java 1.4.2 compatible NetWeaver platform to Java5, all existing customer coding has to be ported as well. Therefore, new SAP products (as Markus said) are already on Java5.

Thanks,

Hannes

[doug_mclaughlin2 · Accepted solution]

Hannes,

That is helpful information. When you talk about changed data types, I presume you are talking about these [breaking changes|http://java.sun.com/j2se/1.5.0/compatibility.html] in in J2SE 5.0, correct?

If so, most of these incompatibilities appear to be edge cases. The majority of existing code should run unmodified in SAP JVM 5.1.

Will SAP require users to migrate their existing 1.4.2 code to Java 5? If so, when?

Thanks.

Doug

[hannes_kuehnemund · Accepted solution]

Hi Doug,

although these might be edge cases, you don't want them in your operational HR system to appear ... even if the chance of appearance is very, very, very low, this wouldn't be acceptable at all.

I have no information of any requirements of a 1.4.2 move at all.

Hannes

[doug_mclaughlin2]

Thanks again for your help, Markus.