As an IntelliJ user, I thought of sharing my experiences with MaintainJ. First let me say, this is the fifth tool I evaluated and it will be the last. Why, because this one works! The other tools cost several thousand dollars and only create sequence diagrams from static source code, which is completely useless for complex code. If you want to learn what is really happening in your code, this is the product to use. Not only does the MaintainJ work very well, but all of my questions were answered by technical experts. I am very happy to recommend such a useful product. Great Job to all those at MaintainJ. Keep up the good work.
Don Steger
President
Next Wave Mobile, LLC
MaintainJ has proved to be a very useful tool for a challenging problem. Our team was assigned the glamorous task of identifying business rules from Java code, developed and evolved over a period of 10 years. The initial attempt at doing this by just viewing the code did not yield the optimal results plus the task quickly lost its appeal. :-).
The MaintainJ trace capability enabled the team to identify specific paths within the code base, and use the sequence diagrams to navigate the code to identify and document rules. Version 3.0 provided the additional context data, that added further value to what we were doing.
MaintainJ support was very responsive and helped us with issues we faced getting the tool to work with a non compliant J2EE app and any other questions we had. Overall, this is a very useful tool that can provide great value at a nominal price.
The tool works very well for me :
I have advised my outsourcers to use it and will start getting more licenses for my team members.
Jean Safar
Chief Technology Officer
Quartet Financial Systems
I am part of a Java/J2EE maintenance project spanning 6000+ classes
from past 3 years. Having 6+ years of experience in Java it was always
difficult and more challenging because the code had very less
documentation, complex business rules, strict deadlines, growing
expectation from customers. There are still certain areas which still
baffles us as a team.
This tool came as a blessing !! It gives immense pleasure to see the
sequence diagram generated for a use case at click of a button.
Initially when trying this tool, the time it was taking to instrument a
package of 600 classes was not so encouraging, but thanks to you
Choudary for coming up with new version which instruments the classes
involved at runtime, yes at RUNTIME !!
Now there is a big leap in terms of performance and also the diagrams are
so user friendly. This tool made my life much easier, especially for the
new guys in the team, they can just play around the application and
figure out the flow just like that !!
Many thanks to you Choudary. Keep up the good work.
Satish S Rao
Delivery Manager
HP
Some tools work well enough to use. Some tools work more or less as they are represented. This tool is better than some which I have paid huge amounts of money for because it just works. In attempting to understand massive systems which are written in event driven languages and are almost always "self documenting" (I always loved that one) it is nice to have a tool which cuts through the trash and provides real sequence diagrams. THANK YOU, REALLY THANK YOU
Marshall Dewitt
Application/Systems Engineer, Principle
I work for a .com company that releases a new version of our software every 2 weeks. The software has different styles of architecture and is a large and complex application. When we are implementing new features, most of the time, we have to follow the design decisions that was made for that particular module. All the documentation become obsolete quickly. Thanks for MaintainJ that generates the artifacts dynamically! When I reading a diagram I can be sure that is reflecting the actual code. Your tool is AMAZING!!!
I got to this great tool thru TSS when i was looking for a UML plug-in for
Eclipse. I was excited by looking at the capabilities. As i evaluated it,
there was no disappointment whatsoever, and the tool worked as great as it
claims to be. There was nothing that I wanted to be improved. (of course I do
have some enhancement requests now
)
Why I think the tool is cool? Here are the answers:
Ease of use
- Amazingly easy to instrument your application, to apply the filters and get
going (thanks to the nice demos)
- Know AspectJ? You are ready to use this tool at once..
- If you understand how it works, you don't even need eclipse to instrument
your application. You can instrument it thru' your ant build script. Later use
Eclipse to view the generated diagrams.
Neat UI
- Neat and simple UI for sequence diagrams
- Easy to remove redundancy in diagrams
- Easy to filter out unnecessary
Performance
- Decent performance for an instrumented application (who cares anyways - this
is not in production)
- I used it with a quite big standalone application. Even big sequence
diagrams are not cluttered and thanks to the simplicity, there are no perf
issues in loading/rendering big diagrams
I have used TogetherJ to create static sequence diagrams from code - and was
disappointed because of the cluttered UI (even after lots of filtering, even
with just static analysis) and some fancy stuff.
Though I do not want to compare TogetherJ and MaintainJ as they are
functionally different (TogetherJ has lot more features than you can imagine),
from a developer's point of view (in a practical scenario) MaintainJ takes the
prize, thanks to
- runtime generation of sequence diagrams
- neat UI (come on, since when did developers need fancy UI??)
Congrats to Choudary for a really good job. I look forward to recommend
MaintainJ to my colleagues and friends.
Cheers,
Krishna Rajappa
Javed Sujala
eBay
I found MaintainJ by mistake and I hope I'll continue to make this kind of mistakes. MaintainJ is a powerful tool that helps me in my work. It easy to generate sequence diagram to understand a working application. It's not always easy to modify an existing application without breaking something; with MaintainJ you can accelerate the development if used correctly.
Good work!
Sebastien Dionne
Financiere Banque Nationale
I joined a new company recently. The code base is large but documentation is
sparse. I use the MaintainJ plug-in along with custom changes to the ant build
file (to weave the aspects using AspectJ ant task into the code) and lo behold
.... I had the sequence diagram for the particular workflow. Its nice to follow
the workflow from the ser file than stepping through via debugging.
This is a splendid tool and keep up the good work.
Harjit Singh
Barclays
I looked to MaintainJ for use in an academic project, and found it very useful for explaining the "magic happens" parts of a multi-threaded multi-hosted application, to relatively inexperienced developers. I'd tried a few other products that claimed to produce sequence diagrams, but this was the only one that Just Works. It really made my day to find it.
Richard Barrington
I have used this tool recently on a J2EE project and found it to be very useful, in particular the Sequence Diagrams. I look forward to downloading and trying out the new version.
Thanks,
Nasser Alhawash
My manager has thrown me an assignment to customize a standalone Java
application which was developed in dirty and messy way. To make the things
worst, there is no documentation at all! I was having difficulties to understand
the code... and luckily, I found MaintainJ and it really help me a lot in
tracing and debugging the application. Many thanks to MaintainJ and Choudary!
Among all the issues we discussed in MaintainJ forum, I'm very interested to see
if I'm able to export the diagrams to image files one day (which I'm still
encounter the OutOfMemoryException).
I'm very interested to see MaintainJ evolves and becomes a stable product and I
hope to try out the next release very soon!
wolverine.my
The whole idea is really marvelous, capturing runtime trace by AspectJ
without touching the source code. I especially like the idea of expanding and
collapsing the sequence, which can avoid messy diagrams.
I have tried it under Eclipse 3.2 with AspectJ 1.5.2. I worked perfectly for
both standard Java application and Web Application.
However, it cannot work under IBM's RAD (Rational Application Developer 6.0),
where eclipse is 3.0. That's not end of the world. Here is a word around. I
installed 1.2.2 AspectJ plug-in in RAD to be able to capture the runtime trace,
review and study the generate sequence diagrams and class diagrams under eclipse
3.2. Of course you gotta put AspectJ runtime and MaintainJAspect.jar in your web
project. It sounds inconvenience, but it really helps me in my work, maintaining
a quite complicated project.
Good work, Choudary
Charlie Liu
on The Server Side
Recently, I found this plug-in and learnt to use it in my work. It is ease to use and the runtime sequence diagram is very useful to me. I use it with JADclipse. It helps me to read the source code quickly. I think it is a great tool. I will spend time to try it in my another work. I look forward to downloading and trying out the new version.
Chen Bin