Description Chandler Zhang 2012-11-16 11:27:19 EST

Created attachment 223662 [details]
Code change

When I imported maven projects into workspace, I found that the 'Update Maven Dependencies' job took a long time.  When I debugged the code, I found one issue

In ProjectRegistryRefreshJob.java, all MavenUpdateRequests are stored in a List. However, a project may be added to the list more than once when importing into workspace, which means more than 1 MavenUpdateRequests for a project may exist in the list. 
To eliminate this scenario, I changed the type of the queue from List to LinkedHashSet and implemented equals and hashcode method in MavenUpdateRequest

I tested the patch on my workspace, which contained 23 projects. The duration of workspace setup(from importing projects to 'building workspace' and 'update maven dependencies' completing) reduced from 5 mins to 4.5 mins