WAS v8.5 > Reference > Log and trace file descriptionsEnterprise application topology
Use this page to see where modules reside in a topology of enterprise applications. Knowing where a module resides helps you to determine which class loader loaded a module and to diagnose problems with class loaders.
To view this dmgr console page, click Troubleshooting > Class loader viewer. This page lists all installed applications and their modules in a tree view. The modules can be .war files or EJB modules (.jar files).
When deploying an application to a server or starting an application, you might encounter problems related to class loaders. Use the console pages accessed from this page to troubleshoot errors such as the following:
- ClassCastException
- ClassNotFoundException
- NoClassDefFoundException
- UnsatisfiedLinkError
We can use the Class loader viewer console pages without having to restart or manipulate the application.
Enterprise applications topology
Displays a tree hierarchy of applications installed on a server and lists the module files in the class paths of the applications.
Expand the hierarchy for an application to see what .war files and .jar are in the application class path.
Click on a module name to examine the class loaders of the module.
Related concepts:
Class loaders
Enterprise (Java EE) applications
Related
Class loading
Reference:
Class loader viewer settings
Search settings
Class loading exceptions