I have an issue in Adobe Reader, blurry text with a section of a PDF. Same file works fine on a colleagues PC. Even tried Pro?

I posted this question on Twitter last week, was asked to check the settings for rendering and this didn't make a difference. I then installed Adobe Acrobat Pro to see if this made a difference but no luck. Finally I was asked to print in B&W but again no luck. One of my colleagues is using Reader and the same file works fine for him. Please help...

After a week's worth of debugging, I found the issue.
The Java type returned from the call was defined as ArrayList.  Changing it to List resolved the problem.
I'm not sure why ArrayList isn't a valid return type, I've been looking at the Adobe docs, and still can't see why this isn't valid.  And, why it works in Debug mode and not in Release build is even stranger.  Maybe someone can shed some light on the logic here to me.

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    After a week's worth of debugging, I found the issue.
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    I'm not sure why ArrayList isn't a valid return type, I've been looking at the Adobe docs, and still can't see why this isn't valid.  And, why it works in Debug mode and not in Release build is even stranger.  Maybe someone can shed some light on the logic here to me.

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