ArrayIndexOutOfBoundsException In WebLogic's HttpChunkOutputStream

(Doc ID 1586993.1)

Last updated on NOVEMBER 05, 2016

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 occurence of the problem may depend on the complex-predictable ways how your data will be compressed.



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