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Encountered the same popup issue after upgrading my MacBook Pro (15-inch, Mid 2010) 2.4 GHz i5 to Yosemite 10.10. Installed the JRE initially but then came across this thread after continually getting the popup, got rid of the JRE using the 'alternative method' from these instructions, installed the JDK and, like T-Will said, so far so good!
 
Same issue here after installing 10.10 final. Tried uninstalling Java and reinstalling 8 - u25, still getting this annoying popup. I'm sure this will get patched soon? I don't need the Java Development Kit!
 
This problem is still occurring on the released version.

Still getting the Java Runtime Environment alert (even though I upgraded to JRE 8 yesterday) Any assistance?
 
Still getting the Java Runtime Environment alert (even though I upgraded to JRE 8 yesterday) Any assistance?

The link to the Apple "Java for OS X 2014-001" fixed it for me - even though I installed the JRE and still had the popups. The JDK download from Oracle contains tons of things that are really Java development specific. There's not really any reason you SHOULDN'T install it (other than there's no reason you SHOULD).

I would say give that apple link posted above a shot.

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My $.02: Use the Apple link unless you're a Java developer.
 
Java driving me mad!!!!!!!!!!!

I have same issue, getting so tedious now going to try to download the other one people are suggesting then see how it is!
 
Disable the Facebook plugin that is trying to run with Java

I had a similar issue to the OP. It turns out that I have a Facebook Video Chat plug-in that was requesting the JRE every time I started my Mac.

Removing the plug-in using the steps below solved my problem:

Open Terminal and enter the code,

Code:
launchctl list | grep facebook


The result displayed will be similar to this, except <yourname> will be replaced by your Facebook username,

- 1 com.facebook.videochat.<yourname>.updater
- 0 com.apple.facebook.xpc


To remove the offending process, enter the code, remembering to replace <yourname> with your own Facebook username,


Code:
launchctl remove com.facebook.videochat.<yourname>.updater

Note: I found this in the comments on another site, but it fixed the error for me after months of searching for malware and other things so I reposted here in the hope it might help others who don't actually want to install Java and let this software continue to run in the background.
 
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