java - Where to look for logs in Google Connector installer for file system connector -

i running following command install google file system connector , it's failing without info. can please point out logs or what's going on?

sudo ./gci.bin lax_vm /usr/lib/jvm/java-8-oracle/bin//java -i console

===============================================================================

choose java runtime environment

please choose java vm use installed application:

->1- /usr/bin/java

2- choose java vm installed on system 

enter number java vm, or press accept current selection: 2 enter absolute path java vm executable of choice : /usr/lib/jvm/java-8-oracle/bin//java

path java executable is: /usr/lib/jvm/java-8-oracle/bin//java (/usr/lib/jvm/java-8-oracle/bin/java) correct? (y/n): y unable install java virtual machine included installer.

and fails.

can please help?

have tried java 7? i've made worked java 7, not sure if connectors support java 8.