Hello Abhinav,
Please check out this note: 1495160 - SAP JVM as replacement for Partner JDKs.
It explains that you have to use a SAP JVM, instead of partner JDKs. SAP JVM is also a JDK.
Please go to the Support portal browse the catalog and locate your product,
eg: SAP NetWeaver and complementary products -> SAP NetWeaver -> SAP NETWEAVER 7.0 -> SAP JVM 4.1.
You can download the corresponding JVM from here.
The JVM has no dependency in the kernel, however you should check the PAM matrix prior upgrading the JVM. It is also recommended to go for the latest kernel.
Best Regards,
Peter