[jira] [Created] (WW-4534) Struts core 1.3.10 unable to submit single Form file

["venu b (JIRA)" <ji...@apache.org>]

venu b created WW-4534:
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             Summary: Struts core 1.3.10 unable to submit single Form file
                 Key: WW-4534
                 URL: https://issues.apache.org/jira/browse/WW-4534
             Project: Struts 2
          Issue Type: Bug
            Reporter: venu b


My requirement is to support uploading multiple files at a time:-
Getting NPE while submitting Form file thru multipart form
In Java form I am not using
private FormFile [] importConfigFile
because, it throws
Exception found: java.lang.ClassCastException: org.apache.struts.upload.CommonsMultipartRequestHandler$CommonsFormFile cannot be cast to java.util.ArrayList

Hence, without declaring it, dynamically I am using 

         Hashtable files = adminConfigurationsForm.getMultipartRequestHandler().getFileElements();
         ArrayList list = (ArrayList) files.get("importConfigFile");

to accept multiple files at a time..
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Same Action is working fine, if not File selected
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Caused by: java.lang.NullPointerException
at java.lang.Class.isAssignableFrom(Native Method)
at org.apache.struts.util.RequestUtils.rationalizeMultipleFileProperty(RequestUtils.java:506)
at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:459)
at org.apache.struts.chain.commands.servlet.PopulateActionForm.populate(PopulateActionForm.java:50)
at org.apache.struts.chain.commands.AbstractPopulateActionForm.execute(AbstractPopulateActionForm.java:60)
at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:305)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
---------------
Form parameters for failed scenarios:
import	true
importConfigFile	CustomTableEditor.xml
Headers (same for both cases)
	POST /teams/do/ImportAdminConfigurations HTTP/1.1
	Content-Type	multipart/form-data; boundary=----WebKitFormBoundaryRJpECUJpEFbjAd5B
	
Form parameters for failed scenarios:
import	true
importConfigFile	CustomTableEditor.xml, MetadataEditor.xml



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