[birt-dev] Checkin: Bugzilla#190160 (partly) - Problems with efficiency

["Yulin Wang" <yulin.wang@xxxxxxxxxxx>]

- Summary:
Problems with efficiency have been detected on BIRT code base.

- Bugzilla Bug (s) Resolved: 190160 (partly)

- Description:
Fixed a performance issue of map iteration.

- Tests Description: Manual Test

- Notes to Build Team: N/A

- Notes to Developers: N/A

- Notes to QA: N/A

- Notes to Documentation: N/A

- Files Edited:

/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/event/InteractionEvent.java

- Files Added:

- Files Deleted