Unattended jdk7 installation using jenkins failed

Question

I configured Jenkins to install jdk7 automatically from java.sun.com as follows:

jenkins setup

and when I run it, it shows me this error:

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jdk1.7.0_80/db/bin/derby_common.bat
jdk1.7.0_80/db/bin/startNetworkServer.bat
jdk1.7.0_80/db/bin/startNetworkServer
jdk1.7.0_80/db/bin/setNetworkServerCP.bat
jdk1.7.0_80/db/bin/stopNetworkServer
jdk1.7.0_80/db/README-JDK.html
jdk1.7.0_80/db/NOTICE
jdk1.7.0_80/README.html
jdk1.7.0_80/THIRDPARTYLICENSEREADME.txt
tar: jdk1.7.0_80/jre/lib/amd64/server/libjsig.so: Cannot create symlink to ‘../libjsig.so’: Protocol error
tar: Exiting with failure status due to previous errors
ERROR: Failed to install JDK. Exit code=2

Any thoughts? I would really appreciate any way of help.