SAP JVM Switch Tool with SAPJVM 6.1

Hi,

I have a Java system in SAP Netweaver 7.01 with JDK 1.4.2.

I have to refresh this system with an Upgraded system (SAP Netweaver 7.40) using restore/Homogeneous system copy.

I think I have to switch my JKD to SAP JVM 6.1 (for compatibility with SAP NW 7.40) before lauching my Homogeneous system copy.

Is it possible to use SAP JVM SWITCH TOOL 1.0 to switch from JDK 1.4.2 to SAP JVM 6.1?

Regards