java.lang.NullPointerException
at com.mongodb.gridfs.GridFSFile.validate(GridFSFile.java:63)
at org.activiti.douglass.api.Cases.uploadCaseAttachment(Cases.java:84)

Seems to be similar to a bug that was fixed before: JAVA-160

Strange thing is that this bug is reproducable in maven and when running the same test in Eclipse it runs fine. Both test runs use the same mongodb.

My code:

81 GridFSInputFile gridFsFile = fileSystem.createFile(uploadStream, caze.getOid()+"/"+fileName);
82 gridFsFile.setContentType(mimeType);
83 gridFsFile.save();
84 gridFsFile.validate();

Driver code:

54 public void validate() throws MongoException

{ 55 if ( _fs == null ) 56 throw new MongoException( "no _fs" ); 57 if ( _md5 == null ) 58 throw new MongoException( "no _md5 stored" ); 59 60 DBObject cmd = new BasicDBObject( "filemd5" , _id ); 61 cmd.put( "root" , _fs._bucketName ); 62 DBObject res = _fs._db.command( cmd ); 63 String m = res.get( "md5" ).toString(); 64 if ( m.equals( _md5 ) ) 65 return; 66 67 throw new MongoException( "md5 differ. mine [" + _md5 + "] theirs [" + m + "]" ); 68 }