HierarchicalINIConfiguration.getSection() is not thread-safe if the global
section is requested
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Key: CONFIGURATION-407
URL: https://issues.apache.org/jira/browse/CONFIGURATION-407
Project: Commons Configuration
Issue Type: Bug
Affects Versions: 1.6
Reporter: Oliver Heger
If the global section of a hierarchical INI configuration is requested, a new
ViewNode is created which becomes the root node of a new configuration for the
global section. Nodes representing properties of the global section are added
to this ViewNode. This operation temporarily changes the parent node of these
nodes which may cause problems if the method is called by multiple threads
concurrently. Because access to a section is a read-only operation, this should
be thread-safe.
The probability that this error happens is pretty low IMO. Therefore it should
be hard to create a unit test.
The issue can be fixed by synchronizing the add operation to the ViewNode.
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