Hi Abhishek Shanbhogue,
What is the Release and SPS level you have applied to ABAP stack and Java stack here and what is
the SP level and Patch Level applied to BI Java components?
Can you please refer the following SAP Note and check whether it helps you:
1489509 - Java Script Error while adding bookmark to browser favorites
Also, please refer the following SAP KBA Note:
1899396 - Patch Level 0 for BI Java Installation - Detailed Information
Thanks & Regards,
Sapna