/sys$common/syshlp/helplib.hlb JAVA, Example  *Conan The Librarian (sorry for the slow response - running on an old VAX)

        $ JAVA /CLASSPATH=(USER1$:[mydir1],[.mydir2],[.mydir3]myzip.zip,[])-

                          /INITHEAP="10m"/MAXHEAP="20m"-
                          /SYSTEM_PROPERTY="XXX=ZZZ"  "MyTestProgram"

      This example executes the Java runtime interpreter on the file
      MyTestProgram.class.

      The search path USER1$:[mydir1],[.mydir2],[.mydir3]myzip.zip,[]
      is used to override the current setting of the CLASSPATH
      logical.

      For the duration of this execution, the system property XXX is
      set to ZZZ. The interpreter is run with an initial heap size of
      10 megabytes.

      Notice that the name of the class file "MyTestProgram" must
      be in quotation marks to preserve the case of the spelling.
      Without the quotation marks, OpenVMS changes the entire string
      to uppercase, and the class name will not match what is in the
      source file.