Error saving image on server (fmath plugin for CKEditor)

I have integrated the fMath plugin for CKEditor:

I am using the following fmath plugin for CKEditor:
fmath_formula-only-plugin-CKEditor-v3.6.2-b1026

The following error is generating when I click "OK" button in fMath ML editor:
"Error saving image on server:"

For capturing the image at server side code is only existing in JSP which is not supported by the WebObjects I am using.

Please advise if they is any other java server side code other than the JSP that can be used to capture the image and set to CKEditor.

Thanks,
Raghu.