Description of problem:

Clicking on Summary->Timeline tab of a resource by a user without config read permission displays a pop up displaying below message :

"Failed to load json data from /resource/common/monitor/events/EventConfigJSON.jsp?id=10001&begin=1318390713800&end=1318419513800
Internal Server Error".

when user tries to navigate away and clicks on any tab or sub tab of the platform resource, the pop up still displays.

The server log displays PermissionException.

Please refer the attached screenshot and the server log.

Version-Release number of selected component (if applicable):

Build#510 (Version: 4.1.0-SNAPSHOT Build Number: 0a0e373)

Tested on Firefox versions '3.6.3' and '3.0.15'.

How reproducible:

Always

Steps to Reproduce:

1. Login to rhq as rhqadmin.
2. Create a user
3. Create a compatible group of resorce (Ex: RHQ Agent)
4. Create a role without 'Configure' resource permissions. (Or default permissions)
5. Assign user and compatible group to the role created.
6. Login as the user
7. Navigate to 'Inventory menu'->Servers->resource name (RHQ Agent)
8. Click on the 'Summary->Timeline' tab

  
Actual results:

It displays a pop up displaying a message 'Failed to load json data' and the server log displays PermissionException.

Expected results:

No exception and pop up message should be displayed.

Additional info:
This bug is not reproducible when user has configure read permissions.