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https://issues.apache.org/jira/browse/GROOVY-10095?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Paul King closed GROOVY-10095.
------------------------------
> 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
> Fix For: 5.0.0-alpha-9
>
>
>
> {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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