Avoid the possibility of a NullPointerException for custom components

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: alloy-2.0.0, alloy-3.0.0, portal-2.0.0, portal-3.0.0
• Fix Version/s: alloy-2.0.1, portal-2.0.1, portal-3.0.1, alloy-3.0.1, generator-1.1.0
• Component/s: Liferay Faces Alloy / Showcase / Tests, Liferay Faces Generator, Liferay Faces Portal / Demos / Tests
• Labels: None

Need to add a check for null in the renderer for custom componens to avoid the possibility of a NullPointerException.