Randoop generates uncompilable sequences because "reference to assertEquals is ambiguous"

[varuniy]

Randoop Version: 4.3.2
Output of java -version:

openjdk version "17.0.5" 2022-10-18
OpenJDK Runtime Environment Temurin-17.0.5+8 (build 17.0.5+8)
OpenJDK 64-Bit Server VM Temurin-17.0.5+8 (build 17.0.5+8, mixed mode, sharing)

Operating System Version:

Edition: Windows 10 Home
Version: 22H2
Installed on: 5/‎3/‎2021
OS build: 19045.3693
Serial number: 004802701057
Experience: Windows Feature Experience Pack 1000.19053.1000.0

Steps I took:

1. Create a directory called test anywhere
2. Inside this directory, create three files called MyClass1.java and MyClass2.java and myclasses.txt
3. Paste the following contents into MyClass1.java, MyClass2.java, and myclasses.txt respectively:

import java.util.*;

public class MyClass1 {

    public Object input;

    public MyClass1 (Object input) {
        this.input = input;
    }

    public String privateMethod1 (Object input) {
        return input.toString();
    }
} 

import java.util.*;

public class MyClass2 {

    public Integer input;

    public MyClass2 (Integer input) {
        this.input = input;
    }

    public Integer privateMethod2(Integer input) {
        return input * 2;
    }
}

MyClass1
MyClass2

4. Compile MyClass1.java and MyClass2.java using javac MyClass1 and javac MyClass2
5. Change into the directory containing the test subdirectory and run the following command:
   java -classpath "test/;[path to randoop-all-4.3.2.jar]" randoop.main.Main gentests --classlist="test/myclasses.txt" --time-limit=4

Note: If trying to replicate this error on Linux, you may need to edit some of the above commands. Notably, please change the ";" to ":"

This was the output I generated:

Randoop for Java version 4.3.2.
Will try to generate tests for 2 classes.
PUBLIC MEMBERS=10
Explorer = ForwardGenerator(steps: 0, null steps: 0, num_sequences_generated: 0;                                             
    allSequences: 0, regresson seqs: 0, error seqs: 0=0=0, invalid seqs: 0, subsumed_sequences: 0, num_failed_output_test: 0;
    sideEffectFreeMethods: 1113, runtimePrimitivesSeen: 38)                                                                  

Progress update: steps=1, test inputs generated=0, failing inputs=0      (2023-11-21T21:14:01.334531100Z     8.14M used)
Progress update: steps=75, test inputs generated=58, failing inputs=0      (2023-11-21T21:14:05.340745Z     89.1M used)
Normal method executions: 4690
Exceptional method executions: 0
Created file C:\Users\varun\IdeaProjects\randoop\RegressionTest0.java
Created file C:\Users\varun\IdeaProjects\randoop\RegressionTest.java
Wrote regression JUnit tests.
About to look for flaky methods.

Invalid tests generated: 0

Uncompilable sequences generated (count: 24).
Please report uncompilable sequences at https://github.com/randoop/randoop/issues ,
providing the information requested at https://randoop.github.io/randoop/manual/index.html#bug-reporting .

Obviously, I don't think Randoop should be generating uncompilable sequences here. Additionally, I was able to print out why some of the sequences being generated were uncompilable and this was the output for one of those sequences:

isCompilable => false
RandoopTemporarySeqTest16.java:19: error: reference to assertEquals is ambiguous
        org.junit.Assert.assertEquals("'" + int3 + "' != '" + 20 + "'", int3, 20);
                        ^
  both method assertEquals(java.lang.String,java.lang.Object,java.lang.Object) in org.junit.Assert and method assertEquals(java.lang.String,long,long) in org.junit.Assert match
import org.junit.FixMethodOrder;
import org.junit.Test;
import org.junit.runners.MethodSorters;

@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class RandoopTemporarySeqTest16 {

    public static boolean debug = false;

    @Test
    public void theSequence16() throws Throwable {
        if (debug)
            System.out.format("%n%s%n", "RandoopTemporarySeqTest16.theSequence16");
        MyClass2 myClass2_1 = new MyClass2((java.lang.Integer) 1);
        java.lang.Integer int3 = myClass2_1.privateMethod2((java.lang.Integer) 10);
        java.lang.Integer int5 = myClass2_1.privateMethod2((java.lang.Integer) 20);
        java.lang.Integer int7 = myClass2_1.privateMethod2((java.lang.Integer) (-1));
        java.lang.Integer int9 = myClass2_1.privateMethod2((java.lang.Integer) 100);
        org.junit.Assert.assertEquals("'" + int3 + "' != '" + 20 + "'", int3, 20);
        org.junit.Assert.assertEquals("'" + int5 + "' != '" + 40 + "'", int5, 40);
        org.junit.Assert.assertEquals("'" + int7 + "' != '" + (-2) + "'", int7, (-2));
        org.junit.Assert.assertEquals("'" + int9 + "' != '" + 200 + "'", int9, 200);
    }
}

Thanks!