Does SAP support JVM 1.5.0 for the SAPgui 6.40 Rev 6 for the Mac?

Question

On Tuesday evening, Apple released a software update for Java 2 Platform Standard Edition (J2SE) 5.0 Release 4 for Mac OS X v10.4.5 or later. When you install the update, it will change the default version of Java virtual machine from Java 1.4.2 to Java 1.5.0. Apple also posted instructions for changing the default back to Java 1.4.2 at <http://docs.info.apple.com/article.html?artnum=303526>.
When I launch SAPgui 6.40 Rev 4 or SAPgui 6.40 Rev 6 for the Mac, they both now use JVM 1.5.0. Does SAP support that, or should I follow Apple's instructions for changing the default JVM back to 1.4.2?
Here is the information from the "About SAPgui" boxes.
SAPGUI for Java 6.40 rev 4
(Version ID 064000040400)
Build: Thu Sep 1 02:10:41 MEST 2005 on uw1059
Java VM: Apple Computer, Inc. Version 1.5.0_06-64
OS: Mac OS X(ppc) Version 10.4.6
APGUI for Java 6.40 rev 6
(Version ID 064000040600)
Build: Wed Dec 21 13:01:37 MET 2005 on uw1059
Java VM: Apple Computer, Inc. Version 1.5.0_06-64
OS: Mac OS X(ppc) Version 10.4.6

Answer 1

Hello,
as indicated in the system requirements of SAP GUI for Java 6.40, JRE 1.4.2 is the only supported Java version on any of the platforms including Mac OS X.
Current Mac versions of SAP GUI for Java 6.40 unfortunately do not block usage of JRE 5.0 after installing Java 2 Platform Standard Edition (J2SE) 5.0 Release 4, which causes latter to become the Java default.
We have discovered this recently and starting with the next revision of SAP GUI for Java 6.40 we will make sure that it uses JRE 1.4.2 independent from the Java default.
Until then, it is required to change the Java default back to 1.4.2 like described in http://docs.info.apple.com/article.html?artnum=303526 in order to avoid unpredictable issues.
It is planend to support JRE 5.0 with the upcoming SAP GUI for Java 7.00 on all platforms including Mac OS X.
Best regards
Rolf-Martin Woersinger
SAP GUI for Java development