[opencms-dev] error when try upload picture No file items found in the request

[ivan.gorbachev at iac.spb.ru]

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Opencms 8.5.2 version (http://www.opencms.org/en/download/archive.html)
Browser Firefox 30.0
Application server GlassFish 3.1.2
JDK 1.6
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Hi,
When I try to upload a picture through the opencms workplace I have an 
error: No file items found in the request.

org.opencms.ade.upload.CmsUploadException: No file items found in the 
request.
at org.opencms.ade.upload.CmsUploadBean.parseRequest 
(CmsUploadBean.java: 554)

method: private List <FileItem> readMultipartFileItems 
(CmsUploadListener listener) throws Exception {
returns an empty collection

How to solve this problem? I can't change application server and Opencms 
9.0.1 don't want install on this application server. Null pointer 
exception is appears.
What need change that method readMultipartFileItems returns not empty 
collections?

Greetings