ALC-ASM-S00-002 NumberFormatException on attachment filename or source

Question

DDX:
<DDX xmlns="http://ns.adobe.com/DDX/1.0/">
  <PDF result="pdfWithAttachments" format="PDF">
   <PDF source="pdfWithoutAttachments"/>
   <FileAttachments source="pic_20140917135051.bmp">
    <File filename="pic_20140917135051.bmp"/>
    <Description>null</Description>
   </FileAttachments>
  </PDF>
</DDX>
Error:
INFO  [com.adobe.livecycle.assembler.AssemblerServiceImpl] ALC-ASM-N00-001: Execute: invoke() begin on thread WorkerThread#1[192.168.126.196:59718] 186
INFO  [com.adobe.internal.ddxm.Executive] DDXM_N00000: Started processing result named pdfWithAttachments
ERROR [com.adobe.internal.ddxm.Executive] DDXM_S00001: Failed to assemble result named pdfWithAttachments
ERROR [com.adobe.livecycle.assembler.AssemblerServiceImpl] ALC-ASM-S00-002: Failed to execute the DDX - error messages provided.
com.adobe.livecycle.assembler.client.ProcessingException: ALC-ASM-S00-002: Failed to execute the DDX - error messages provided.
at com.adobe.livecycle.assembler.AssemblerServiceImpl.makeResult(AssemblerServiceImpl.java:906)
at com.adobe.livecycle.assembler.AssemblerServiceImpl.execute(AssemblerServiceImpl.java:510)
at com.adobe.livecycle.assembler.AssemblerServiceImpl.invoke(AssemblerServiceImpl.java:454)
Caused by: java.lang.NumberFormatException: For input string: "20140917135051"
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at com.adobe.internal.pdfm.embeddedfiles.EmbeddedFilesHandler.updateBaseDocEmbeddedFilenames(EmbeddedFilesHandler.java:947)
at com.adobe.internal.pdfm.embeddedfiles.EmbeddedFilesHandler.addEmbeddedFile(EmbeddedFilesHandler.java:691)
at com.adobe.internal.pdfm.embeddedfiles.EmbeddedFilesHandler.importEmbeddedFiles(EmbeddedFilesHandler.java:285)
at com.adobe.internal.pdfm.attachments.Attachments.importAttachments(Attachments.java:370)
at com.adobe.internal.ddxm.task.attachments.ImportAttachments.execute(ImportAttachments.java:216)
at com.adobe.internal.ddxm.ddx.Node.execute(Node.java:353)
The assembler is parsing the filename or source string (not sure which) and cast the timestamp part to a number ??
The assembler proces works fine with source and filename "pic_1.bmp"
Livecycle ES2.0

Answer 1

UPDATE
We have installed a new UTF-8 database (Oracle) because the original database was not a unicode database.
Now the process starts, we no longer get the errors in the server.log
But now the parameter that contains the mail attachment (pdf) is empty.
For a normal pdf (no special characters) the parameter is not empty.
When we change the endpoint by changing the input parameter mapping from *.pdf to * we are able to
receive the attachment in the input parameter.
The reason is that the filename (ex. éa.pdf) is being changed to something like "=?ISO-8859-1?Q?=E9a=2Epdf?=".
Hereby *.pdf does not match and the parameter is empty.
By changing the endpoint we are now allowing all types of attachments. (ex. xls, doc,..)
We only want pdf documents.
In the proces we can get the documentname by using getDocAttribute(/process_data/@inPdfDoc, "wsfilename").
Since this returns "=?ISO-8859-1?Q?=E9a=2Epdf?=" it's not clear what kind of document this is.
For é.pdf, "=?iso-8859-1?B?6S5wZGY=?=" is begin returned (not even the letters "pdf").
Does anyone know a way to solve this?
Does anyone know a way to get the type of the attachment since the documentname is not a solution...