Travis-ci console asks for answers - grails

Question

How can i answer a question made by the console in travis-ci? I made a script that is downloading gvm but right after it completes i receive something like this:
"Do you want grails 2.1.5 to be set as default? (Y/n):"
Right after this question the build can't go foward, i tried to use expects but i was not very successful, my travis.yml is this:
language: groovy
jdk:
- oraclejdk7
before_install:
rm -rf ~/.gvm
curl -s get.gvmtool.net > ~/install_gvm.sh
chmod 775 ~/install_gvm.sh
~/install_gvm.sh
source "/home/travis/.sdkman/bin/sdkman-init.sh"
sdk install grails 2.1.5
echo "gvm_auto_answer=Y" > ~/.sdkman/bin/config
branches:
only:
- master
script: grails test-app --non-interactive
EDIT Grails wrapper is not working as you can see here
https://travis-ci.org/jpms2/ResS/builds/81761164
I seemed to find a problem like mine that happened with gvm instalation, the solution to this problem was a command like this:
echo "gvm_auto_answer=true" >> ~/.gvm/etc/config
So i tried to use this command and had no success:
echo "gvm_auto_answer=Y" >> ~/.sdkman/etc/config

Answer 1

I did find a way to pass the log message, using
echo sdkman_auto_answer=true > ~/.sdkman/etc/config
my travis.yml file is like this now:
language: groovy
jdk:
- oraclejdk7
before_install:
rm -rf ~/.gvm
curl -s get.gvmtool.net > ~/install_gvm.sh
chmod 775 ~/install_gvm.sh
~/install_gvm.sh
echo sdkman_auto_answer=true > ~/.sdkman/etc/config
source "/home/travis/.sdkman/bin/sdkman-init.sh"
sdk install grails 2.1.5
branches:
only:
- master
script: grails test-app --non-interactive