JavaScript error on large payload

Products

• CA API Gateway

Issue/Introduction

I have an "Execute JavaScript" assertion that executes this one line of JavaScript:

    context.setVariable('body', JSON.stringify(context.getVariable('request.mainpart')));

Strict Mode is checked on this execute.  It works fine normally, but in payloads larger than 1.03 MB, I get this error:

Script failure: StringifyRequestMainpartIntoBody:java.security.AccessControlException: access denied ("java.io.FilePermission" "/opt/SecureSpan/Gateway/node/default/var/attachments/att3804_0.part" "read")
    at jdk.scripting.nashorn.scripts/jdk.nashorn.internal.scripts.Script$Recompilation$33$14$\^eval\_/0x000000080169e440.L:1(<eval>:1)
    at jdk.scripting.nashorn.scripts/jdk.nashorn.internal.scripts.Script$Recompilation$30$\^eval\_/0x00000008018adc40.:program(<eval>:1)
.  Exception caught! 

Environment

Release : 10.1

Resolution

Cluster wide property's,

io.xmlPartMaxBytes is set to 0 or some very large value.
attachment.diskThreshold is set to 10 mb.

and then restart ssg service,

# service ssg restart