Replying to myself in case anyone else should find this helpful:
I traced the problem to a section in
org/dspace/submit/step/UploadStep.java
that has to do with the file description string.
As far as I could tell, the program was trying to add a file description string
to a null bitstream. Not sure why, since the file was uploading perfectly and I
was just using the default “traditional” form upload. But I suppose I must have
done something to cause this to happen only to my install… Perhaps it was set
up for multi-file upload (not deliberately) but I was using it for single
uploads? Maybe someone on here can shed some light on that aspect.
But anyway the system was uploading the file in one step, then doing a separate
step to assign the file description — but second time round the bitstream was
null. Hence the error.
I’m not recommending my fix as the solution for this. In fact, I’m sure there
must be something a lot simpler you can tweak. But just in case anyone else is
interested I changed the UploadStep.java file from
262 // -------------------------------------------------
263 // Step #3: Check for a change in file description
264 // -------------------------------------------------
265 String fileDescription = request.getParameter("description");
266 if (fileDescription != null && fileDescription.length() > 0)
267 {
268 // save this file description
269 int status = processSaveFileDescription(context, request,
response,
270 subInfo);
271
272
273 // if error occurred, return immediately
274 if (status != STATUS_COMPLETE)
375 {
376 return status;
377 }
378 }
379
to
262 // -------------------------------------------------
263 // Step #3: Check for a change in file description
264 // -------------------------------------------------
265 String fileDescription = request.getParameter("description");
266 if (fileDescription != null && fileDescription.length() > 0)
267 {
268
269 // ---------------------------------------------
270 // Every time I tried adding an item to a collection
271 // I would get an error message about Malformed item
272 // Traced this to this method - file upload happens
273 // but then this method gets called to set the description
274 // and the bitstream the /second/ time round is null.
275 // So we get the bitstream from the Item object and
276 // set the description string on that. Not sure if that
277 // is the right thing to do but it seems to work...
278 // D I Macdonald 2015-02-06
279 // ----------------------------------------------
280 if (subInfo.getBitstream() == null)
281 {
282 if (item != null)
283 {
284 Bundle[] bundle = item.getBundles("ORIGINAL");
285 if (bundle.length!=0)
286 {
287 Bitstream[] bitstreams = bundle[0].getBitstreams();
288 if (bitstreams[0] !=null)
subInfo.setBitstream(bitstreams[0]);
289 }
290 }
291 } // - - end of DI insert
292
293 // save this file description
294 int status = processSaveFileDescription(context, request,
response,
295 subInfo);
296
297
298 // if error occurred, return immediately
299 if (status != STATUS_COMPLETE)
300 {
301 return status;
302 }
303 }
304
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