Access the Java Virtual Machine page.
Click Servers > Application Servers in the console navigation tree.
On the Application Server page, click on the name of the server whose JVM settings you want to configure [server1].
On the settings page for the selected application server [server1], click Process Definition.
On the Process Definition page, click Java Virtual Machine in the Additional Properties.
On the Java Virtual Machine page, specify values for the JVM settings as needed. Click Custom Properties in Additional Properties:
Click New to display the settings page for your internal system configurations property.
Specify name/value pair property: type monitor.debug.level (or monitor.debug.category) in the Name field, and type the value in the Value field.
Click Apply to view a page with your new settings.
Click OK to return to the Custom Properties page, where your new property appears in the list.
Click OK to return to the Java Virtual Machine page.
Click Save on the console taskbar.
Restart the application server.