[birt-dev]CheckIn: Fix testcase failure in plugin org.eclipse.birt.core

["Wei Wang" <wwang@xxxxxxxxxxx>]

Title: [birt-dev]CheckIn: Fix testcase failure in plugin org.eclipse.birt.core

- Summary:
Fix testcase failure in plugin org.eclipse.birt.core

- Bugzilla Bug (s) Resolved:
None

- Description:
Fix testcase failure in plugin org.eclipse.birt.core

All testcases are passed in Windows OS platform

- Tests Description  :
Unit Test

- Notes to Build Team:
None

- Notes to Developers:
None

- Notes to QA:  
None

- Notes to Documentation:  
None

- Files Edited:
"/org.eclipse.birt.core.tests/test/org/eclipse/birt/core/format/DateFormatterTest.java"
"/org.eclipse.birt.core.tests/test/org/eclipse/birt/core/exception/BirtExceptionTest.java"

- Files Added:
None

- Files Deleted
None

- Wei Wang
Actuate Software(Shanghai) Co.,Ltd