[birt-dev] CheckIn: Bugzilla#164744 - Show Labels does not work properly

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

- Summary:
Show Labels does not work properly for gantt chart [0001]

- Bugzilla Bug (s) Resolved:
164744

- Description:
Sets the location for null value when either startDate or endDate is null in gantt chart

- 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.extension/src/org/eclipse/birt/chart/render/Gantt.java

- Files Added:

- Files Deleted