apt-cache tar.gz issue

#here the apt-cache server config
root@imgramEmpty:~# cat /etc/apt-cacher/apt-cacher.conf
allowed_hosts = *
index_files_regexp = ^(?:Index(?:\.bz2)?|Packages(?:\.gz|\.bz2)?|Release(?:\.gpg)?|InRelease|Sources(?:\.gz|\.bz2)?|Contents-(?:[a-z]+-)?[a-zA-Z0-9]+\.gz|(?:srclist|pkglist)\.[a-z-]+\.bz2|release(?:\.gz|\.bz2)?|Translation-[a-z]{2,3}(?:_[A-Z]{2})?(?:\.gz|\.bz2|\.xz)?)$
installer_files_regexp = ^(?:vmlinuz|linux|initrd\.gz|changelog|NEWS.Debian|[a-z]+\.tar\.gz(?:\.gpg)?|UBUNTU_RELEASE_NAMES\.tar\.gz(?:\.gpg)?|(?:Devel|EOL)?ReleaseAnnouncement(?:\.html)?|meta-release(?:-lts)?(?:-(?:development|proposed))?)$


#we verify the connection here
root@imgramGrafboard:~# ping imgramEmpty
PING imgramEmpty (172.28.128.3) 56(84) bytes of data.
64 bytes from imgramEmpty (172.28.128.3): icmp_seq=1 ttl=64 time=0.436 ms
64 bytes from imgramEmpty (172.28.128.3): icmp_seq=2 ttl=64 time=0.409 ms

#command failing !
root@imgramGrafboard:~# echo oracle-java7-installer shared/accepted-oracle-license-v1-1 select true | sudo /usr/bin/debconf-set-selections
root@imgramGrafboard:~# sudo apt-get -y install oracle-java7-set-default
Reading package lists... Done
Building dependency tree
Reading state information... Done
oracle-java7-set-default is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 29 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up oracle-java7-installer (7u76+7u60arm-0~webupd8~0) ...
Downloading Oracle Java 7...
--2015-02-13 21:48:55--  http://download.oracle.com/otn-pub/java/jdk/7u76-b13/jdk-7u76-linux-x64.tar.gz
Resolving imgramempty (imgramempty)... 172.28.128.3
Connecting to imgramempty (imgramempty)|172.28.128.3|:3142... connected.
Proxy request sent, awaiting response... 403 Sorry, not allowed to fetch that type of file: jdk-7u76-linux-x64.tar.gz
2015-02-13 21:48:55 ERROR 403: Sorry, not allowed to fetch that type of file: jdk-7u76-linux-x64.tar.gz.

download failed
Oracle JDK 7 is NOT installed.
dpkg: error processing package oracle-java7-installer (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of oracle-java7-set-default:
 oracle-java7-set-default depends on oracle-java7-installer; however:
  Package oracle-java7-installer is not configured yet.

dpkg: error processing package oracle-java7-set-default (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                          Errors were encountered while processing:
 oracle-java7-installer
 oracle-java7-set-default
E: Sub-process /usr/bin/dpkg returned an error code (1)