After the installation, by default Web Server runs in the 32-bit mode if the 64-bit runtime option is not selected. The following shows how to enable the 64-bit support after the installation.
Set the configuration property:
$ wadm set-config-prop --user=admin-user --host=host-name --port=admin-port --config=config-name platform=64
Deploy the configuration:
$ wadm deploy-config config-name