Excellent value for companies wishing to host Java applications in the cloud. Utilizing hosting tools such as load balancers and network and application firewalls, Tomcat can be part of a powerful system to host web applications to thousands of users. There has been consistency in the development and support of Tomcat since its initial release in the late '90s and the best commonalities have been carried forward. If you host Java web applications, Tomcat is as good as any for an application server.
GNU Make is a great tool for simple builds where language-specific options are not available, or to provide shortcuts for common commands (e.g., "make build" as shorthand for "go build ..." with a bunch of flags). However, it is complementary to other build systems. It does not replace them, which is perhaps one of its greatest strengths as well (works with existing ecosystem instead of trying to do everything). GMU Make it simple to get started with, and the philosophy of understanding how sources map to outputs, as well as the dependency graph, are beneficial.
Using tomcat manager to troubleshoot is not very informative. Error messages are vague, you have to dig into log files for more information about the problems.
Is great for simple web applications, but may not work for heavy development which may require a full J2EE stack, might like JBoss better.
Security in tomcat is not straightforward, as I discovered that you have to understand how to set up realms in tomcat in order to hash passwords, which I was not overly familiar with, which is a big deal when setting up users in the tomcat-users.xml file.
Tomcat has a very rich API set which allows us to implement our automation script to trigger the deployment, configure, stop and start Tomcat from the command line. In our projects, we embedded Tomcat in our Eclipse in all of the developer's machines so they could quickly verify their code with little effort, Azure Webapp has strong support for Tomcat so we could move our application to Azure cloud very easy. One drawback is Tomcat UI quite poorly features but we almost do not use it.
Tomcat doesn't have a built-in watchdog that ensures restart upon failure, so you have to provide it externally. A very good solution is java service wrapper. The community edition is able to restart Tomcat upon out of memories exceptions.
Tomcat support to customize memory used and allow us to define the Connection pool and thread pool to increase system performance and availability, Tomcat server itself consume very little memory and almost no footprint. We use Tomcat in our production environment which has up to thousands of concurrent users and it is stable and provides a quick response.
In general, it is fair to say the support is sufficient although we do not deal with support directly. There are a lot of forum people chiming in with suggestions or recommendations of particular usage or issues we run into. Since it is open software, patch and fixes will be available from time to time. A lot of information is available in the web now for knowing GNU Make from learning, example, teaching, etc.
Eclipse Jetty is the best alternative for Apache Tomcat because which is also an open-source and lightweight servlet container like Tomcat. A major advantage of this over Tomcat is that Jetty server can easily be embedded with the source code of web applications. Since it requires less memory to operate, you may realize that it is very efficient.
I'm a full-stack developer that has used various build tools, including Maven, Gradle, and NPM/yarn. For our C projects, I also investigated CMake and Ninja, but they seemed more difficult to learn and more tedious to work with. GNU Make is a single binary that can be easily downloaded, even for Windows under MingW32, is straightforward to learn, and works pretty well despite its age.
Tomcat is cheap and very quick to deploy, so it has benefited much when situation needs applications to be deployed quickly without wasting time on licensing and installations.
Plenty of documentation available so no vendor training is required. Support contract is not needed as well.
