[jira] [Updated] (GROOVY-10095) Wrong LUB when involving a numeric constant and null

["Eric Milles (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GROOVY-10095?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Milles updated GROOVY-10095:
---------------------------------
    Priority: Minor  (was: Major)

> Wrong LUB when involving a numeric constant and null
> ----------------------------------------------------
>
>                 Key: GROOVY-10095
>                 URL: https://issues.apache.org/jira/browse/GROOVY-10095
>             Project: Groovy
>          Issue Type: Bug
>          Components: Static Type Checker
>            Reporter: Thodoris Sotiropoulos
>            Assignee: Eric Milles
>            Priority: Minor
>
>  
> {code:java}
> class Foo {  void foo() {
>     float x = (false) ? 10.4: null;
>   }
> }
> public class Main {
>   public static void main(String[] args) {
>     new Foo().foo();
>   }
> }
> {code}
> h3. Actual Behaviour
> groovyc compiles this program, but the programs crashes with the following error
> {code:java}
> Exception in thread "main" org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'null' with class 'null' to class 'float'. Try 'java.lang.Float' instead
>         at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToNumber(DefaultTypeTransformation.java:175)
>         at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.floatUnbox(DefaultTypeTransformation.java:95)
>         at Foo.foo(groovy6.groovy:4)
>         at Main.main(groovy6.groovy:11)
> {code}
> h3. Expected Behaviour
> groovyc should reject the program with a compile-time error.
>  
> Tested against https://github.com/apache/groovy/commit/9bce2dff2068f6ee31c0681b30628987aab09a92
>  



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