ICSM Servers Returning Java.lang.OutOfMemoryError: Unable To Create New Native Thread

(Doc ID 2233704.1)

Last updated on FEBRUARY 14, 2017

Applies to:

Oracle Advanced Inbound Telephony - Version 12.2.5 and later
Information in this document applies to any platform.


Customer is setting up inbound telephony according to MOS 1071491.1. In ISCM, They have created the server group with the 7 servers. However, They can only start up 3 or 4 of the 7 servers at any given time. The log file, attached, shows "java.lang.OutOfMemoryError: unable to create new native thread" for the ones that fail to start up.

java.lang.OutOfMemoryError: unable to create new native thread

The issue can be reproduced at will with the following steps:

Call Center HTML Administration> ICSM > Server Groups


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