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Hi guys,
As one of the few persons who knows the packages in suggestion
#2, they are needed but also (I suppose) a good example of when
the metric "decentral and stable" fails, that is in simple helper
classes. Two of those (UnionFind and BidirectionalMap) are used
just in one or two other classes for a specific algorithm, while
the third (ArrayUtils) is a bunch of static helper functions, some
of which are also only used a few times, if memory serves.
Regards,
Michael
Am 10.02.2017 um 16:52 schrieb Roman
Haas:
Dear Recommenders developers,
you are working on an amazing project and I am sure you are
investing a lot of time to keep it up and running!
I am researching in the field of software maintenance and I
implemented a tool to identify unnecessary code in code bases
using a static code analysis. The aim of my work is to support
developers like you in deleting parts of the system that are not
needed anymore, resulting in less wasted maintenance time due to
maintaining irrelevant code. The hypothesis of my work is that
stable and decentral classes are good candidates for unnecessary
code and could be taken care of in a future clean-up of the
software system.
I evaluated my work on the history of some open source systems and
the results are promising. Nevertheless, I would like to extend my
evaluation using the feedback of developers. It would be great if
you could help me with your expert knowledge about your system.
Using my tool, I generated some candidates for unnecessary code
for your software system, i.e. classes or even whole packages that
may be unnecessary and therefore could be deleted. Unfortunately,
I am not able to classify whether the recommendations are helpful.
You could help me a lot by taking a look at the suggestions (I
generated ten of them for you) and answering one simple question
for each of them ("Do you consider the suggested file(s) or
package(s) as unnecessary?"). I estimate that you do not need to
invest more than 10-15 minutes into this evaluation. In addition,
I hope that the 10-15 minutes also pay off for you when my work
supports you in maintaining and maybe even cleaning up your
project.
In the attachment, you find a file that lists ten suggestions for
unnecessary code in your code base. Each suggestion consists of
one or more files or packages; if there are several elements they
are part of the same package. Please use the link to the
evaluation form in the attached file to provide your feedback.
Please do not hesitate to ask me if there are any questions
regarding my research, the prototype in general or the suggestions
for your project.
I am looking forward to your feedback! Thank you very much for
your help and interest in my work.
Best regards,
Roman Haas
Master's Student at the Technical University of Munich
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