improve null-handling

["ocs@ocs.cz" <oc...@ocs.cz>]

Hi there,

is there a way to make sure in Groovy

(a) that instead of "Cannot cast object 'null' with class 'null' to class 'XXX'" for numeric primitive types XXX (like int) one gets simply a XXX containing 0
(b) that instead of "Cannot resolve which method to invoke for [null] due to overlapping prototypes" (which happens e.g., with foo+bar if foo is null) one gets simply null as a result of the expression?

Thanks,
OC

RE: improve null-handling

["Winnebeck, Jason" <Ja...@windstream.com>]

(a) x ?: 0
(b) foo?.plus(bar)

Jason Winnebeck

-----Original Message-----
From: ocs@ocs.cz [mailto:ocs@ocs.cz] 
Sent: Sunday, February 19, 2017 8:38 AM
To: users@groovy.apache.org
Subject: improve null-handling

Hi there,

is there a way to make sure in Groovy

(a) that instead of "Cannot cast object 'null' with class 'null' to class 'XXX'" for numeric primitive types XXX (like int) one gets simply a XXX containing 0
(b) that instead of "Cannot resolve which method to invoke for [null] due to overlapping prototypes" (which happens e.g., with foo+bar if foo is null) one gets simply null as a result of the expression?

Thanks,
OC

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