CCE with Java interop

[rdhananjaya]

Description:
https://stackoverflow.com/questions/67796448/issues-calling-java-from-ballerina

Steps to reproduce:

Affected Versions:

OS, DB, other environment details and versions:

Related Issues (optional):

Suggested Labels (optional):

Suggested Assignees (optional):

[gabilang]

Code to reproduce the issue:

Java code:

package javalibs.app;

public class App {
    public static int status = 1;
    
    public static int[] intArray() throws Exception {
        int arr[] = {1,2,3};
        if (status == 1) {
            return arr;
        } else {
            throw new Exception("Invalid Status");
        }
            
    }
}

Ballerina code:

import ballerina/jballerina.java;
import ballerina/io;
 
public function main() {
   handle|error h = intArray();
   io:println(h);
}
 
function intArray() returns handle|error = @java:Method {
   'class: "javalibs.app.App"
} external;

returned error message:

error("java.lang.ClassCastException",message="class [I cannot be cast to class io.ballerina.runtime.api.values.BValue ([I is in module java.base of loader 'bootstrap'; io.ballerina.runtime.api.values.BValue is in unnamed module of loader 'app')")```