Although this problem can be fixed by installing jdk1.8.0_221, but actually you don’t need to downgrade your JDK. Just try these:
- First exit netbeans IDE if it’s open, then open netbeans configuration file from here: netbeans-Install-Dir/etc/netbeans.conf
(Note: for me netbeans-Install-Dir is C:\Program Files\NetBeans 8.2\etc) - Add the below arguments
-J-Djdk.lang.Process.allowAmbiguousCommands=true
- to the beginning of the string that you find at this line:
netbeans_default_options="-J-client -J-Xss2m -J-Xms32m ......."
Sample screenshot as shown below:

4. Save the change and start your netbeans IDE.