Reflection invoke fails with System.MissingMethodException

[martinwebrant]

Reflection does not work as expected. This is a minimal repro based on a bug found in a project that used the java based Rhino JavaScript engine.

    public static void testToString() throws Exception {
      String test = "test";
      test.getClass().getMethod("toString").invoke(test);
    }

Unhandled Exception: System.MissingMethodException: Method not found: '?'.
   at __<FastMethodAccessor>__java_lang_String__toString(Object , Object[] , CallerID )
   at IKVM.Java.Externs.sun.reflect.ReflectionFactory.FastMethodAccessorImpl.invoke(Object obj, Object[] args, CallerID callerID)
   at java.lang.reflect.Method.invoke(Object obj, Object[] args, CallerID )
   at testikvm.Main.testToString() in Main.java:line 10
   at Program.Main(String[] args) in d:\opensource\testikvm\ConsoleApp1\Program.cs:line 7

Here is a test project:
testikvm.zip
Use

dotnet build
ConsoleApp1\bin\Debug\net472\ConsoleApp1.exe

Reproduced with latest version 8.11.0-pre.2 - this works with winward and older jeroen versions.