There are several ways to change the amadmin password in OpenAM, including using the console and using the ampassword tool, which comes with the OpenAM command line tools.
This is just a quick post to say I have made a tool which generates the amadmin password hash without the need to have OpenAM or the ssoadm tools in place.
You could use this to generate the password hash if you have forgotten the amadmin password, for example.
For more information on how to use the tool and where to find the password hash in the OpenAM configuration directory, see our community bitbucket repo:
https://stash.forgerock.org/projects/COM/repos/amadminpwdgen/browse
