Remove unnecessary copying of the map in getTypeMap()
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Key: DERBY-5143
URL: https://issues.apache.org/jira/browse/DERBY-5143
Project: Derby
Issue Type: Improvement
Components: JDBC
Affects Versions: 10.8.0.0
Reporter: Knut Anders Hatlen
Assignee: Knut Anders Hatlen
Priority: Minor
The JDBC 4.0 Connection classes implement getTypeMap() by calling
super.getTypeMap() and copying the resulting map. This is done to prevent an
unchecked compiler warning that we would see if we simply returned
super.getTypeMap() in this method. It would be cheaper and simpler to return
super.getTypeMap() and ignore the warning.
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