My Oracle Support Banner

ArrayIndexOutOfBoundsException In WebLogic's HttpChunkOutputStream (Doc ID 1586993.1)

Last updated on JUNE 10, 2022

Applies to:

Oracle WebLogic Server - Version 10.3.6 and later
Information in this document applies to any platform.


Sudden intermittent errors like


at java.lang.System.arraycopy(Native Method)
at weblogic.utils.http.HttpChunkOutputStream.writeToChunks(
at weblogic.utils.http.HttpChunkOutputStream.write(

happen when the application makes use of objects in order to connect out via HTTP with code like:


i.e. due to the ZipOutputStream the random occurrence of the problem may depend on the complex-predictable ways how your data will be compressed.



To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.