Switching the SAP JVM From JDK

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With SAP JVM 4.1, customers can get as long support for their JDK as they get for the remaining SAP NetWeaver 2004 and SAP NetWeaver 7.0 based software from SAP. SAP JVM 4.1 is supported directly by SAP.

SAP developed its own Java Virtual Machine (JVM) 1.4.2, named SAP JVM 4 in order to ensure the guaranteed support for SAP Web Application Server 6.40 and SAP NetWeaver 7.0 systems. 

Please go through the below SAP Note

SAP Note 1665953 - SAP JVM Switch Tool Composite Note 

You can check the current JDK on SAP system with the help below snap

You can search for the relevant packages on SAP Service Marketplace as follows:

1. Go to http://service.sap.com/patches
2. Choose "Search for Support Packages and Patches"
3. Enter Search Term "SAP JVM 4*"

Or

simply Click on below link but you need a SMP login

SAP JVM 4.1

After download, You get the below .SAR files

Now extract the JVM Switch tool only with sapcar command

Now run the sapinst from extracted files

Please browse the correct path like G:\usr\sap\SOL\SYS\profile

Put the password of SIDadm

Now give the path of JVM 4 in below screen

select the SAP JVM4

If you have not the jce_policy-1_4_2.zip then you can download from below SAP note

1426759 - Downloading the JCE Policy Files from SUN or IBM

Next with Default Setting

Next with Default Setting

Next with Default Setting

Next with Default Setting

Next with Default Setting

If you want to change the value of any parameter then you just check and revise it

JVM successfully replaced with jdk.

You can check the SAP JVM version with different ways like below

Run ST11 and check the JVM version in the file dev_server0

you can also check from http://SystemName:50000

run the java-version command

Now You need to put the JVM parameters in Instance profile

You need to check the value of User environmental variable JAVA_HOME

Please check the below SAP Notes for more Information about JVM.

Note 1665953 - SAP JVM Switch Tool Composite Note

Note 1367498 - SAP JVM installation prerequisites

Note 1442124 - How to download a SAP JVM patch from the SMP

Note 1603093 - SAP JVM 4.1 parameters NetWeaver 2004 and 7.0

Note 1649026 - SAP JVM Switch tool: Configuring Replication using sapcpe