Upgraded from Yosemite to Sierra and a pop up appears after every computer restart. The pop up message reads, "To use the java command-line tool you need to install a JDK".
MacBook Pro with Retina display, macOS Sierra (10.12)
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You have to install Apple's legacy Java 6 as you have installed software that is improperly coded such that it will only work with that. the two I know of are Adobe creative suite and some facebook video chat software.
Download Java for OS X 2015-001
if it is actually correctly coded, you may be able to install a current JDK from Oracle's website. The JRE on Java.com will not work.
How to remove "To use the java command line tool you need to install a JDK" message after installing Sierra
