Game have in folder file javai.dll and use it, but in Java 2(1.2) this file isnt and was integrated to another. I found this text on one forum, my frends programmers, if hears about Java 1.18 speak something about cave and club

In the Java 2 Runtime Environment v1.2, jvm.dll takes the role of javai.dll in JDK 1.1. The JNI invocation functions such as JNI_CreateJavaVM, and old NMI methods such as makeJavaString are now present in jvm.dll. We understand that this an issue for customers with pre-existing shared libraries and applications that are linked against javai.dll. One workaround, if you have the object files, is to re-link the application. We are working on a workaround for users who don't have access to the object files (watch these pages).