AttachmentsSoapService doesn't close inputStream in getAttachmentData(long, String, int).

(AttachmentsSoapService:108)
FileUtils.copy(attachmentManager.getAttachmentData(attachment),baos);
baos.close();

There is no use in closing baos, but input stream must be closed, as it could be a file stream, for example.

Should be something like this, I presume:
InputStream inputStream = attachmentManager.getAttachmentData(attachment);
FileUtils.copy(inputStream,baos);
inputStream.close();