A popup error message with the error "java.lang.NullPointerException" appears when trying to display the node settings of a node

Issue/Introduction:

Error Message :
The following error appears on the univiewer.log:

########################
|ERROR||BackgroundWorker-7|com.orsyp.kmeleon.environment.ExceptionManager|An error occured on ENVIRONMENT: (node = MgtServer environment = [UJCENT/MgtServer/X])
java.lang.NullPointerException
at java.util.Hashtable.get(Unknown Source)
at com.orsyp.std.ClientConnectionManager.getConnections(ClientConnectionManager.java:633)
at com.orsyp.std.ClientConnectionManager.getPool(ClientConnectionManager.java:725)
at com.orsyp.std.ClientConnectionManager.getConnection(ClientConnectionManager.java:502)
at com.orsyp.std.ClientConnectionManager.getConnection(ClientConnectionManager.java:555)
at com.orsyp.std.ClientConnectionManager.getConnection(ClientConnectionManager.java:268)
at com.orsyp.std.ClientConnectionManager.getConnection(ClientConnectionManager.java:234)
at com.orsyp.std.EnvironmentStdImpl.getConnection(EnvironmentStdImpl.java:504)
at com.orsyp.std.EnvironmentStdImpl.getFullVersion(EnvironmentStdImpl.java:463)
at com.orsyp.std.EnvironmentStdImpl.getVersion(EnvironmentStdImpl.java:246)
at com.orsyp.api.Context.getEnvironmentVersion(Context.java:278)
########################

Patch level detected:Univiewer Console 6.5.01
Product Version: Dollar.Universe 6.5.01

Description :A popup error message with the error "java.lang.NullPointerException" appears when trying to display the node settings of a node

Cause:

Cause type:
Defect
Root Cause: The issue was due to a wrong definition of the Roles based on a node view of the company nodes.

Environment:

OS: All

Resolution:

After the correction, a popup error message will appear with the correct error message:
############
Node Settings for : Access to this node is not authorized. Check the security configuration.
############

Fix Status: Released

Fix Version(s):
Component: Univiewer.Console
Version: Dollar.Universe 6.5.21

Additional Information:

Workaround :
N/A