STScI Science Cluster users will need to edit their .envrc file to make sure JAVA is in their path. To do this, edit the .envrc file in your home directory and make sure the line

Package: JDK12

is in the file and does not have a # character before it. This line needs to be in the file AFTER the line

Type: User

line near the top of the file.  After making these changes, log out and log back in.