The service com.sun.star.java.JavaVirtualMachine
gives access to a java virtual machine. This service is only usable in process,
the given java virtual machine can then be accessed via Java Native Interface.
Hints can be given to the service to find the java installation. Just set
the environment variable OO_JAVA_PROPERTIES to your java runtime library.
Under the operating system Windows an assignment of this environment variable
could look as follows:
set OO_JAVA_PROPERTIES=RuntimeLib=d:\jdk1.3\jre\bin\hotspot\jvm.dll
