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https://issues.apache.org/jira/browse/SIS-85?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris A. Mattmann resolved SIS-85.
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Resolution: Fixed
> Consider removing metadata synchronization
> ------------------------------------------
>
> Key: SIS-85
> URL: https://issues.apache.org/jira/browse/SIS-85
> Project: Spatial Information Systems
> Issue Type: Improvement
> Components: Metadata
> Reporter: Martin Desruisseaux
> Assignee: Martin Desruisseaux
> Fix For: 0.3
>
>
> All subclasses of {{ISOMetadata}} are currently synchronized. It probably
> doesn't have significant impact on the JAR file size, since (in my
> understanding) adding a {{synchronized}} keyword in the method signature just
> set a bit in a bitmask. However it may be a cause of thread contention.
> Synchronization may not be necessary since the typical usage of metadata
> objects is:
> * Create the metadata object once in a single thread.
> * Declare the metadata as unmodifiable.
> * Allow any thread to read (but not set) the metadata properties.
> The potential contention, especially on metadata object shared by many other
> objects, would be unfortunate. However profiling this not show significant
> bottleneck yet.
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