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Installed today's JDK 1.8.92 RPM. Ran netbeans8.1linux.sh, selected /usr (1.8.92 by Oracle) as JDK home on the first tab of install wizard. Under GUI Builder seeing this: The JDK is missing and is required blah-blah Please use --jdkhome command line option to specify a JDK installation or see http://wiki. blah-blah Under Maven: Not all requested modules can be enabled: [StandardModule:org.netbeans.module.maven.kit jarfile: /home/user0/netbeans-8.1/java/modules Only after deleting the above path and re-running .sh as root it started working.
/usr directory is never JDK home directory. The messages from BUI builder and from Maven clearly show that you are running NetBeans on JRE instead of JDK. More information is visible in messages.log. If you still believe that there is a problem please use step-by-step description how to reproduce it. Also attach messages.log, so we can get detailed info. Thanks.
If Oracle provides JRE under JDK download that will have to be fixed on your end. If Netbeans needs another directory, /usr should not be in the list.