Travis-ci: builds are failing for both of oraclejdk7 and 8

[sanjaymsh]

Hi ,

while testing i observe that the travis-ci builds are failing on amd64 for both of the oraclejdk7 & 8. The log can be tracked here https://travis-ci.com/github/sanjaymsh/castor/builds/216199573.

Please have a look on this.

Thanks !!