Installing Java Stack

Hi,

I want to Install Java Stack on SAP system.

The system right now configured with ABAP stack and the BW version is 7.3 and the ECC is 6.0

The system config :

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Please let me know is there any other information required to suggest possible solution.

I want step by step process. so kindly let me help from the scratch rather than simply suggesting links to follow.

Thanks.