Our portal has been running on Liferay 6.2 for several years. We have many services that use HTML forms (usually written with Alloy UI in Freemarker) to allow users to submit requests. The server code is written in Java and uses the liferay portletrequest objects to return the submit form data.
However, recently these forms suddenly stopped working.
Specifically: if the form includes a file for uploading, then the ActionRequest object does not return any of the form fields as parameters the way it usually does (request.getparameter(paramtername) returns null instead of the string value that the user entered into the form). If the user does not include any files then it works normally.
This doesn't seem to be an issue with the forms or the java code as many forms who's code has not been touched in years suddenly stopped working. What's more this stopped working partway through a day in which we didn't make any changes to the application.
I'm struggling to understand what I'm seeing in the logs. The error messages that feel most promising look like:
Caused by: org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Stream ended unexpectedly
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:351)
at org.apache.commons.fileupload.portlet.PortletFileUpload.parseRequest(PortletFileUpload.java:109)
at org.springframework.web.portlet.multipart.CommonsPortletMultipartResolver.parseRequest(CommonsPortletMultipartResolver.java:151)
... 208 more
But I haven't been able to find anything that seems relevant. Another type of error that might be related looks like:
10:00:09,095 WARN [http-bio-8080-exec-272][FileImpl:422] Unable to extract text from Scan4.JPG
org.apache.tika.exception.TikaException: Unexpected RuntimeException from org.apache.tika.parser.jpeg.JpegParser@3e34efc2
We've been trying to track down the issue for days now, I'm desperate and out of ideas. Can anyone think of any possible reasons why files would not upload?