How to uninstall libcollections15-java from Ubuntu

Uninstall libcollections15-java

To uninstall just libcollections15-java package itself from Ubuntu execute on terminal:

sudo apt-get remove libcollections15-java

Uninstall libcollections15-java and it's dependent packages

To uninstall the libcollections15-java package and any other dependant package which are no longer needed on Ubuntu.

sudo apt-get autoremove libcollections15-java

Purging libcollections15-java

If you also want to delete configuration and/or data files of libcollections15-java from Ubuntu then this will work:

sudo apt-get purge libcollections15-java

To delete configuration and/or data files of libcollections15-java and it's dependencies from Ubuntu then execute:

sudo apt-get autoremove --purge libcollections15-java

libcollections15-java package information

name libcollections15-java
section java

Apache Commons Collections with generics support

website collections/ 

More information about apt-get remove

Advanced Package Tool, or APT, is a free software user interface that works with core libraries to handle the installation and removal of software on Debian, Ubuntu and other Linux distributions. APT simplifies the process of managing software on Unix-like computer systems by automating the retrieval, configuration and installation of software packages, either from precompiled files or by compiling source code.

apt-get is the command-line tool for handling packages, and may be considered the user's "back-end" to other tools using the APT library.

apt-get remove is identical to install except that packages are removed instead of installed. Note that removing a package leaves its configuration files on the system. If a plus sign is appended to the package name (with no intervening space), the identified package will be installed instead of removed.

See Also

How to install libcollections15-java package on Ubuntu