FasterXML/jackson-datatype-guava — pull request #48 by itaifrenkel (2014-08-24 11:00:08+00:00)
Title: Fix NullPointerException when Integer deserializer returns null

This pull requests reproduces and fixes a NullPointerException when using GuavaOptional with a deserialized value of null.
The added unit test in the pull request simulates my use case in which data is read from a CSV file to an ObjectNode that contains strings, and from there it is read into an Object that assigns the string to Optional field. The Integer deserializer returns null, and the GuavaOptional deserializer should convert that in Optional.absent(). Instead a NPE is thrown.