How should I get rid of Exception

[devinaren]

When I tried to open the client i.e User interface which is MainMenuApp received NO_PERMISSION CORBA exception while attempting to get an initial reference to the mvcf_ControllerFactory from the FactoryFinder. Software defect that should be addressed is that the UI did not recover after catching the exception and required a restart of the UI to connect.

The problem is that cleanWorkspace() in CorbaAdapter doesn't have any failover logic in it at all. The adapter is assumed to be good and if it is not cleanWorkspace() attempts to use a factory that doesn't exist. This throws an uncaught NullPointerException that blows out to MainMenuApp where it is interpreted as a fatal exception and prevents the main menu from starting. So please help me in writing the failover logic in CorbaAdapter

The code for cleanWorkspace is

/**
* Cleans up the entire logical positions workspace.
* @throws AdapterException UserError or Error occured
*/
public synchronized void cleanWorkspace() throws AdapterException
{
cut_ContextInitData cid = getContextInitData();
cid.clientId = "*";
MVC2CleanWorkspaceCmd cmd = new MVC2CleanWorkspaceCmd(cid);
execute(cmd);
}