NullPointerException thrown by InputFile.validateValue(FacesContext,Object) when a zero-byte file is uploaded

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: liferay-faces-4.2.5-ga6
• Fix Version/s: liferay-faces-3.2.5-ga6, liferay-faces-4.2.5-ga6
• Component/s: Liferay Faces Alloy / Showcase / Tests
• Labels: None

Steps to Reproduce:

1. Deploy the showcase-portlet

2. Visit the Validation Usage for alloy:inputFile

3. Upload a file that is zero bytes in length

4. Click the Submit button

If the bug is fixed, then a FacesMessage will be displayed in the browser.

Otherwise, if the bug still exists, then the following error will appear in the console log:

java.lang.NullPointerException
	at java.lang.String.contains(String.java:2076)
	at com.liferay.faces.alloy.component.inputfile.InputFile.validateValue(InputFile.java:90)
	at javax.faces.component.UIInput.validate(UIInput.java:971)
	at javax.faces.component.UIInput.executeValidate(UIInput.java:1237)
	at javax.faces.component.UIInput.processValidators(UIInput.java:702)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
	at javax.faces.component.UIForm.processValidators(UIForm.java:253)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1216)
	at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1164)
	at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	at com.liferay.faces.bridge.internal.BridgePhaseActionImpl.execute(BridgePhaseActionImpl.java:93)