Graal JS Overload issue

Handler.java

@FunctionalInterface
public interface Handler<T> {
    void handle(T value);
}

Main.java

import org.graalvm.polyglot.Context;

public class Main {
  static String script =
    "const Tuple = Java.type('Tuple');\n" +
    "const Pool = Java.type('Pool');\n" +
    "\n" +
    "let pool = new Pool();\n" +
    "\n" +
    "pool.prepare('SELECT ...', new Tuple(), res => {\n" +
    "  print(res);\n" +
    "});";

    public static void main(String[] args) {
        Context polyglot = Context
            .newBuilder("js")
            .allowAllAccess(true)
            .build();
        polyglot.eval("js", script);
    }
}

output.txt

An exception occured while executing the Java class. TypeError: INVOKE on JavaObject[bugs.Pool@39eb534c (bugs.Pool)] failed due to: java.lang.IllegalArgumentException: Multiple applicable overloads found for method name prepare (candidates: [Method[public void bugs.Pool.prepare(java.lang.String,bugs.Tuple,bugs.Handler)], Method[public void bugs.Pool.prepare(java.lang.String,java.util.stream.Collector,bugs.Handler)]], arguments: [SELECT ... (String), JavaObject[bugs.Tuple@8b41341 (bugs.Tuple)] (JavaObject), DynamicObject<JSFunction>@daa14ca (DynamicObjectBasic)])

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

  <modelVersion>4.0.0</modelVersion>

  <groupId>io.silver</groupId>
  <artifactId>bugs</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <dependencies>
    <dependency>
      <groupId>org.graalvm</groupId>
      <artifactId>graal-sdk</artifactId>
      <version>1.0.0-rc2</version>
      <scope>provided</scope>
      <optional>true</optional>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.1</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>exec-maven-plugin</artifactId>
        <version>1.6.0</version>
        <executions>
          <execution>
            <goals>
              <goal>java</goal>
            </goals>
          </execution>
        </executions>
        <configuration>
          <mainClass>Main</mainClass>
        </configuration>
      </plugin>
    </plugins>
  </build>

</project>

Pool.java

import java.util.stream.Collector;

public class Pool {

    public void prepare(String query, Tuple tuple, Handler<String> handler) {
        handler.handle("OK");
    }

    public void prepare(String query, Collector collector, Handler<String> handler) {
        handler.handle("OK");
    }
}

Tuple.java

public class Tuple {
    
}