[jira] [Created] (GROOVY-11371) unsafe conversion of array of reference type to an array of primitive type

[Thodoris Sotiropoulos (Jira)]

Thodoris Sotiropoulos created GROOVY-11371:
----------------------------------------------

             Summary: unsafe conversion of array of reference type to an array 
of primitive type
                 Key: GROOVY-11371
                 URL: https://issues.apache.org/jira/browse/GROOVY-11371
             Project: Groovy
          Issue Type: Bug
          Components: Static Type Checker
            Reporter: Thodoris Sotiropoulos


I have the following program
{code:java}
class Test {
  public static void main(String[] args) {
    double[] z = new Double[]{null};
  }
} {code}
h3. Actual behavior

The compiler accepts the program. However, I get the following exception at 
runtime.

 
{code:java}
Exception in thread "main" java.lang.IllegalArgumentException
        at java.base/java.lang.reflect.Array.set(Native Method)
        at 
org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.asArray(DefaultTypeTransformation.java:459)
        at 
org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToType(DefaultTypeTransformation.java:228)
        at 
org.codehaus.groovy.vmplugin.v8.IndyInterface.fromCache(IndyInterface.java:336)
        at Test.main(test.groovy:3)
 {code}
h3. Expected behavior

The compiler should reject the program: Double[] is not convertible to double[].
h3. Notes

Tested against master (commit: 8ba8e8264fc3edeb9c70b52937edb97b0246a5d5)

Groovy 4.0.10 rejects the program as expected.



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