Empty string is considered as null in the parameter map
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Issue
- Is there any specific reason why the empty String in the parameter map is considered Null?
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Steps to Reproduce:
- Deploy the com.mycompany.my.icefaces.portlet. The portlet has a example <ace:datatable> with filters.
- Add the com.mycompany.my.icefaces.portlet to a Liferay page.
- Type anything in a filter (eg; jack) in the table header to filter the datatable results.
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Try to clear the filter by deleting all the characters that have been typed in the filter. The filter does not appear to clear, and the typed character reappears every time backspace is pressed because this line of code: https://github.com/liferay/liferay-portal/blob/master/portal-impl/src/com/liferay/portlet/internal/PortletRequestImpl.java#L1413
Expected Behavior: Filter should be cleared
Actual Behavior: Filter is not cleared as expected
Resolution
- This is a known issue and can be tracked here for more information: LPS-133689
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