Last updated on NOVEMBER 05, 2016
Applies to:Oracle WebLogic Server - Version 22.214.171.124.0 and later
Information in this document applies to any platform.
You have observed occasional failures during application deployment on WLS 12c which results in:
- a) OutOfMemoryError from Arrays.copyOf method
- b) hanging threads in HashMap.put method or
- c) server failed to 'ADMIN' state without any relevant error or exception in log.
In all these cases, the Java Heap Dump shows broken HashMap stored in field 'tms' of class 'weblogic.deploy.internal.targetserver.server.state.DeploymentState' - some of its entries are cycled (see screenshot 'Broken-Hashmap.png' from Eclipse Memory Analyzer).
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