Description of problem:
Share Process Image / Share Process PDF generates invalid html

Version-Release number of selected component (if applicable):
bpms 6.2.0.GA

Steps to Reproduce:
1. Open a BP
2. Run the button-bar menu options "Share Process Image" / "Share Process PDF"
3. The popup dialog contains a very short html string, without the Image or PDF, e.g.
Share Process Image:
<img src="data:image/png;base64,[B@435f416b">

Share Process PDF:
<object data="data:application/pdf;base64,[B@3c4d6fb3" type="application/pdf"></object>

Actual results:
Invalid image / pdf in the html

Expected results:
Valid base63 image / pdf data should be in the html.
See attachments for examples. These can be placed in an html page to display the process image / pdf.

Additional info: