[classlib][IBMVME]the return value of java.exe

[Tony Wu]

Consider this class,
public class TestExeReturn {
   public static void main(String[] args) throws Exception {
       throw new Exception();
   }
}

when we run "java TestExeReturn" and "echo %errorlevel%", we got 1 of
RI, -1 of DRLVM and 0 for IBMVM.

a testcase of apache ant failed for this issue.

--
Tony Wu
China Software Development Lab, IBM