Hi Sajith,
You can ignore the JSP errors as this is a known issue with NWDS.
Regarding not being able to find your custom provider, could you please check the following:
1. Post deployment, check the logs to see if the application has been properly deployed.
2. If you are deploying using NWDS, go to undeploy view and check at the end of deployed SC list, if deployed correctly, the application will be visible.
Please let me know in case you have any further questions.
Best Regards,
Rohit Singhal