Thodoris Sotiropoulos created GROOVY-9985:
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Summary: 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
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
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