MTOM Not Writing Data in Chunks

Solution Verified - Updated -


  • We use a MTOM enabled Webservice to upload large files. This worked fine with EAP 6.4. When we deploy the same Webservice to EAP 7.0 we get Exceptions.
Unable to write to OutputStream!
Caused by: UT000020: Connection terminated as request was larger than 10485760
  • We are seeing this exception, everytime the File size is over 10MB


  • Red hat JBoss Enterprise Application Platform (EAP)
    • 7.0.x
    • Undertow

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In