Does the CA Vantage Web Server support 64bit Java ?
Yes, CA Vantage Web Server supports 64bit Java.
But you need to take care to customize for the Java version.
In a particular case, the customer upgraded from Java7 31bit to Java7 64bit.
When they started the VANWEBUI task using Java7 64bit the VANWEBUI task failed with following message:
CEE3588S A call was made to a function in the AMODE 64 DLL libjvm.so from an AMODE 31 caller.
They had missed to customize for the Java version:
JVMPRC70 -> JVMPRC76
VERSION='70' -> VERSION='76'