Sure, but here is the compatibility issue:
Configuration config = new BaseConfiguration(); Configuration subset = config.subset("database"); if(subset == null) { // continue with limited functionality } else { jdbc.connect(subset.getProperty("database").toString()); }
===> an existing app may just fail now with NPE
The workaround here is to change the condition "subset == null" into "subset.isEmpty()".
It will break existing code expecting a null value, but I think it's still time to make such changes with a minor compatibility impact and clean the API before the 1.0 release.
Emmanuel Bourg
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