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High CPU Usage at HashMap.put() in RegexpPool.add() (Doc ID 1523054.1)

Last updated on NOVEMBER 05, 2016

Applies to:

Oracle Weblogic Server - Version 10.3.4 to 12.1.1.0
Information in this document applies to any platform.

Symptoms

There seems to be a race condition in the HashMap.put() call in the weblogic.socket.utils.RegexpPool.add() method. As a result customers report seeing high CPU usage and a java.lang.ArrayIndexOutOfBoundsException at RegexpPool.add(RegexpPool.java:39).

Cause

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