[OFBIZ-8504] Widget: Use UtilValidate's isEmpty and isNotEmpty methods correctly

• Type: Sub-task
• Status: Closed
• Priority: Minor
• Resolution: Done
• Affects Version/s: Trunk
• Fix Version/s: 16.11.01
• Component/s: ALL COMPONENTS
• Assignee: Deepak Dixit
• Reporter: Pawan Verma
• Created: 15/Oct/16 14:59
• Updated: 27/Oct/16 19:29
• Resolved: 27/Oct/16 19:29

Description

Use UtilValidate's isEmpty and isNotEmpty methods correctly, like,
– used: if(!UtilValidate.isEmpty(productId)) correct use of it: if(UtilValidate.isNotEmpty(productId))
– used: if(!UtilValidate.isNotEmpty(productId)) correct use of it: if(UtilValidate.isEmpty(productId))
This would improve code readability of project.