Workaround for Java 18 security manager issues:
  Suggested method to enable SecurityManager support in Java 18 is
  "-Djava.security.manager=allowed" command-line argument.
  Of course this fails with older Java versions, and detecting Java
  version is hard before launching the JVM...

Doesn't use java.awt.graphicsenv property anymore.

Avoids reading same clpi file multiple times when clip is repeated (ex. in menu backgrounds).

Improve event queue overflow logging.

First try loading jvm.dll without dll search path.
If failed, retry with JAVA_HOME in search path.