PropertiesConfiguration dysfunctional if constructed with nonexistent File
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Key: CONFIGURATION-279
URL: https://issues.apache.org/jira/browse/CONFIGURATION-279
Project: Commons Configuration
Issue Type: Bug
Components: Events & Notifications
Affects Versions: 1.4
Reporter: Tuure Laurinolli
When PropertiesConfiguration is constructed around a File that does not exist,
everything seemingly goes well, but saving the configuration only results in an
empty file. This differs from constructing a PropertiesConfiguration around a
file name passed as String, which appropriately fails at construction-time,
since it tries to load() the configuration, which fails.
When the nonexistent configuration file is passed as File, this does not
happen, since the File constructor in AbstractFileConfiguration specifically
tests if the file exists before calling load() and succeeds even if it wasn't
called. However, if load() is not called, no PropertiesConfigurationLayout is
created or registered to the EventSource, and thus nothing is saved when save()
is called on the PropertiesConfiguration. Calling save() actually calls
getLayout(), which creates a layout and registers it, but the properties set
between construction of the PropertiesConfiguration and calling save() on it
are still lost.
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