How to change oc4jadmin password for Application Server
Introduction
Steps to change oc4jadmin password for Application Server
Posted by Karthick
Locate the following configuration file in the Oracle home of the OC4J instance: vi ORACLE_HOME/oc4j_instance_name/j2ee/home/config/system-jazn-data.xml
Edit the system-jazn-data.xml file and locate the following entry for the oc4jadminuser:
<user>
<name>oc4jadmin</name>
<display-name>OC4J Administrator</display-name>
<guid>41A2E560C96711DABFD08D3BF8B780C4</guid>description>OC4J Administrator</description><credentials>{903}4nlfYYDwaqMJipVbGXuS2ce8egfwBPqp</credentials>
</user>
Replace the value of the <credentials> element with the new password. Be sure to include an exclamation point character (!) before the password.For example:
<credentials>!welcome123</credentials>
After the restart, the Application Server Control will use your new Administrator (oc4jadmin)password, which will be stored in encrypted format within the system-jazn-data.xml file.
Now we can login through a application console with a new password of oc4jadmin.