ClientDriver can lose some connection properties
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Key: DERBY-974
URL: http://issues.apache.org/jira/browse/DERBY-974
Project: Derby
Type: Bug
Components: Network Client
Versions: 10.1.2.1, 10.1.2.2
Environment: Linux, Sun JRE 1.5
Reporter: Michael Hackett
Priority: Minor
Internally, the ClientDriver class's appendDatabaseAttributes() method uses
keys() on the connection properties to get a list of the property names.
However, this misses any properties in the default set. The correct method for
a Properties object is propertyNames(). This will return the same type of
object as keys(), but will include all properties.
(It is unfortunate that Sun chose to make Properties a subclass of Hashtable,
instead of giving Properties a Hashtable, as the former exposes too much
implementation.)
The fix is to simply replace calls to keys() on all Property objects to use
propertyNames(). A quick search revealed that this is not the only place in the
code base where this is done, so a more thorough scan should be made.
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