How to mask input in groovy

Question

How can I mask input from the command line? Basic use case: I want to enter a password when prompted, and I need to either see *'s or nothing at all.

score 13 · Accepted Answer · edited May 23 '17 at 10:27

13

Since you can call Java libraries from Groovy, you may find your answer in the question How to mask a password in Java 5?.

In short, use Console.readPassword() (Java 6 or later).

edited May 23 '17 at 10:27

Community

answered Apr 22 '10 at 20:46

Greg Hewgill

I get this when running even Console.readLine(): Caught: groovy.lang.MissingMethodException: No signature of method: static java.io.Console.readLine() is applicable for argument types: () values: [] – Zombies Apr 23 '10 at 14:42
1

System.console().readLine() according to TFM http://java.sun.com/javase/6/docs/api/java/io/Console.html – tim_yates Apr 23 '10 at 14:47
System.console() doesn't exist in groovy. Trying to reference anything off of it throws a NPE: Caught: java.lang.NullPointerException: Cannot invoke method readLine() on null object – Zombies Apr 23 '10 at 14:57
What was making System.console() fail was the faulty eclipse plugin... Works now via shell. – Zombies Apr 23 '10 at 15:17

1 Answers1