Upgrade JVM

Hi, All

Now I Using Applinx Ver.
Can I Upgrade Version of JVM 1.3.1_04 to 1.4.2_08 ?

Now when I Run Flow Procedure step by step Applinx Program is Hang…
(My Flow Procedure have many condition)

APX 4.7.3 is not supported but I will gladly try to help.
If by upgrading the JVM you mean the internal JRE Applinx is using - there shouldn