sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages will be REMOVED
  jre1.8.0-101
0 to upgrade, 0 to newly install, 1 to remove and 0 not to upgrade.
1 not fully installed or removed.
After this operation, 129 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 394521 files and directories currently installed.)
Removing jre1.8.0-101 (1.8.0101-1) ...
find: ‘/usr/java/*’: No such file or directory
/var/lib/dpkg/info/jre1.8.0-101.postrm: line 586: /usr/sbin/alternatives: No such file or directory
dpkg: error processing package jre1.8.0-101 (--remove):
 subprocess installed post-removal script returned error exit status 127
Errors were encountered while processing:
 jre1.8.0-101
E: Sub-process /usr/bin/dpkg returned an error code (1)