[ 
https://issues.apache.org/jira/browse/GROOVY-9985?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Thodoris Sotiropoulos updated GROOVY-9985:
------------------------------------------
    Description: 
The following program compiles (with @CompileStatic), although it shouldn't.
{code:java}
public class Main {    public static void main(String[] args) {
      Integer[] arr = new Integer[]{1, "str"}; // does not report error
      Integer[] arr2 = [1, "fda"] as Integer[] // does not report error
    }
}
{code}
As a result, there an exception is thrown at runtime
{code:java}
Exception in thread "main" 
org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast 
object 'str' with class 'java.lang.String' to class 'java.lang.Integer'
        at 
org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToNumber(DefaultTypeTransformation.java:172)
        at 
org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.continueCastOnNumber(DefaultTypeTransformation.java:282)
        at 
org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToType(DefaultTypeTransformation.java:243)
        at 
org.codehaus.groovy.vmplugin.v8.IndyInterface.fromCache(IndyInterface.java:318)
        at Main.main(test.groovy:4)
{code}
Tested on 
[https://github.com/apache/groovy/commit/f0eea862549529ef4e93fafe337f86dd4ac98751]

 

  was:
The following program compiles (with @CompileStatic), although it shouldn't.
{code:java}
public class Main {    public static void main(String[] args) {
      Integer[] arr = new Integer[]{1, "str"}; // does not report error
      Integer[] arr2 = [1, "fda"] as Integer[] // does not report error
    }
}
{code}
As a result, there an exception is thrown at runtime
{code:java}
Exception in thread "main" 
org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast 
object 'fda' with class 'java.lang.String' to class 'java.lang.Integer'
        at 
org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToNumber(DefaultTypeTransformation.java:172)
        at 
org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.continueCastOnNumber(DefaultTypeTransformation.java:282)
        at 
org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToType(DefaultTypeTransformation.java:243)
        at 
org.codehaus.groovy.vmplugin.v8.IndyInterface.fromCache(IndyInterface.java:318)
        at Main.main(test.groovy:4)

{code}
Tested on 
https://github.com/apache/groovy/commit/f0eea862549529ef4e93fafe337f86dd4ac98751

 


> STC does not report type mismatches in array initializers
> ---------------------------------------------------------
>
>                 Key: GROOVY-9985
>                 URL: https://issues.apache.org/jira/browse/GROOVY-9985
>             Project: Groovy
>          Issue Type: Bug
>          Components: Static Type Checker
>            Reporter: Thodoris Sotiropoulos
>            Priority: Major
>
> The following program compiles (with @CompileStatic), although it shouldn't.
> {code:java}
> public class Main {    public static void main(String[] args) {
>       Integer[] arr = new Integer[]{1, "str"}; // does not report error
>       Integer[] arr2 = [1, "fda"] as Integer[] // does not report error
>     }
> }
> {code}
> As a result, there an exception is thrown at runtime
> {code:java}
> Exception in thread "main" 
> org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast 
> object 'str' with class 'java.lang.String' to class 'java.lang.Integer'
>         at 
> org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToNumber(DefaultTypeTransformation.java:172)
>         at 
> org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.continueCastOnNumber(DefaultTypeTransformation.java:282)
>         at 
> org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToType(DefaultTypeTransformation.java:243)
>         at 
> org.codehaus.groovy.vmplugin.v8.IndyInterface.fromCache(IndyInterface.java:318)
>         at Main.main(test.groovy:4)
> {code}
> Tested on 
> [https://github.com/apache/groovy/commit/f0eea862549529ef4e93fafe337f86dd4ac98751]
>  



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