Is Java update a Virus!?

Nope, Java is not virus, you can read more about Java for OSX here

https://java.com/en/download/faq/java_mac.xml

Download Java for OS X 2015-001

rsvp125 wrote:

I have software update window for a new version of Java (this one Java 8 update 91 build 14) that comes up every few weeks. Is this a virus?

(I have a Macbook Pro, running latest version of El Capitan.)

No. There are no viruses for OS X. It's exactly what you describe it as — a software update window for Java. If you want it to go away, update Java.

Java 8 update 91 build 14 is the current version. Open System Preferences>Java>Update - Update if needed.

You're welcome. 🙂