When changing the password to jetty admin, you will need to change the password in the em-jetty-config.xml and webview-jetty-config.xml files. This is usually done when configuring to secure the port access on the EM and Webview.
From the config.xml file:
<Set name="<password>">OBF:<password_string></Set>
You can use the plaintext version of the password but most will want to have the new password obfuscated.
Below is a example for the Jetty Password '<password>'.
The command to use will take a little knowledge and research but this should be all you need.
Java -classpath jetty-XXX.jar;jetty-util-XXX.jar org.mortbay.jetty.security.Password `KeystorePassword' <password>
(Windows will use the ";" Semicolon and Unix will use the ":" colon)
XXX is the version information and you will have to find these files and their names on your servers. They will be found deep in the <EM HOME> folder.
Example:
C:\CA APM\Introscope9.1.7.0\product\enterprisemanager\configuration\org.eclipse.osgi\bundles\171\1\.cp>java -classpath jetty-6.1.26.jar;jetty-util-6.1.26.jar org.mortbay.jetty.security.Password `KeystorePassword' password <password>
OBF:<password_string>
MD5:5f4dcc3b5aa765d61d8327deb882cf99
Copy the OBF: line and paste it into the jetty-config.xml files and save the file. You will need to restart the EM to have the new password take effect.