[ http://issues.apache.org/jira/browse/DERBY-974?page=all ]
Michael Hackett updated DERBY-974:
----------------------------------
Attachment: PropertiesTest.java
Demonstrates the difference between the keys() and propertyNames() methods on
Properties.
> ClientDriver can lose some connection properties
> ------------------------------------------------
>
> 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
> Attachments: PropertiesTest.java
>
> 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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