Solution :
Following, are the steps for encrypting admin console password.
1. Stop ActiveMQ service
2. Open a command line and Go to <ACTIVEMQ_HOME>\lib\web
3. Encrypt the password using the following command,
java -cp jetty-util-9.4.51.v20230217.jar org.eclipse.jetty.util.security.Password admin NewPassword
Example -
java -cp jetty-util-9.4.51.v20230217.jar org.eclipse.jetty.util.security.Password admin Abc123
This will output the following Encrypted password1
CRYPT:advwtv/9yU5yQ
4) Open the jetty-realm properties file from ActiveMQ conf directory.
5)Below lines are the last line of the jetty-realm.properties file(please find the below screenshot for your reference).
admin - CRYPT:Paste the encrypted password here,admin
6)start the activemq service.
7)Log in to the below URL using a new password.
localhost:8161/admin/queues.jsp