Description

Following interop case with the parameter type specified gives the parameter count mismatch error which may cause confusions.

public isolated client class Client {
    isolated function getResourceMethod(service object {} serviceObject, string[] path) returns any = @java:Method {
         'class: "myapp.app.App",
         paramTypes: ["io.ballerina.runtime.api.values.BObject", "io.ballerina.runtime.api.values.BArray"]
     } external;
}

Interop java method:

public static Object getResourceMethod(BObject service, BArray path) {
    return 1000;
}

error:

{ballerina/jballerina.java}METHOD_SIGNATURE_DOES_NOT_MATCH 'Parameter count does not match with Java method 'getResourceMethod' found in class 'myapp.app.App''

Anyway it works fine if the parameterType field is specified as

paramTypes: ["io.ballerina.runtime.api.values.BArray"]

Steps to Reproduce

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Related area

-> Runtime

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