Useful tools for Java Developers



Checkstyle:
  • It is a open source and free code analysis tool.
  • It is used in development to check Java code conforms to the coding standards you have established. 
  • It automates the essential but boring task about to check Java code. 
  • It is one of the most popular tools to automate the java code review process.
PMD:
  • PMD is a static code analysis tool that is capable to automatically detect a wide range of potential bugs and unsafe or non-optimized code. 
  • It examines Java source code and looks for potential problems such as possible bugs, dead code, suboptimal code, overcomplicated expressions, and duplicated code.
  • Whereas other tools, such as Checkstyle, can verify whether coding conventions and standards are respected, PMD focuses more on preemptive defect detection.
FindBugs:
  • FindBugs is an open source Java code quality tool similar in some ways to Checkstyle and PMD, but with a quite different focus. FindBugs doesn’t concern the formatting or coding standards but is only marginally interested in best practices.
SonarQube:
  • SonarQube is an open source platform which was originally launched in 2007 and is used by developers to manage source code quality. Sonar was designed to support global continuous improvement strategy on code quality within a company and therefore can be used as a shared central system for quality management. 
SonarLint:
  • It is IDE extension or Plugin that helps developer to identify a quality issues as you write code. 
  • Like a spell checker, SonarLint squiggles code flaws so developers and check and make necessary correction in their code before committing.
Postman:
  • Postman is an tool to Test the APIs, 
  • It is very lightweight and fast Tool.
  • Different request can be groups accoding to its category.
  • It is possible to make different all types of HTTP requests  GET, POST, PUT, PATCH and DELETE using postman. 
  • It is also possible to add headers in the requests.
  • Also, you can set the basic authentication credentials while making the API request.
Apache JMeter:
  • It is a%100 pure java and open source application.
  • It is specifically developed for for Load + Performance + Stress Testing
  • You can easily test you APIS and URL also.
  • It also allows to write your script
  • It also support Simulate heavy loads.
  • It provides Visual output/feedback.
  • You can perform distributed Testing
  • It supports different protocols i.e: Http, Soap, Ldap, Ftp.
  • It also supports REST.
  • It supports Multithreading.
JRat:
  • To measure the performance of application, JRat is the tool you should use. 
  • Using JRat tool, you can find the problematic areas in your application that can impact performance of your Application.
Gradle:
  • It Build Anything It Automate Everything It Deliver Faster.
  • If you want goodness of Ant and Maven and more than that then you can go with gradle.
  • It provide package which can be deployed on any platform.
  • It allow you to integrate, Model, and systematize delivery of your developed software end to end.
  • Gradle supports convention over configuration approach.
  • It is a default build tool in the Android Studio platform.
VisualVM:
  • It is a visual tool for integration of commandline tools of JDK.
  • It provides lite weight capabilities for profiling.
  • It provides the detail about remote and local java Processes.
  • You can easily monitor performance of process ans its memory utilization.
  • You can also get some detail about crashed java processes.
  • It can also take thread dump.
Ehcache:
  • It an open source caching tool for Java. 
  • It is robust and proven and it can be  integrated with other frameworks and libraries.
  • Its API is very simple and easy to use.
  • It scalable to many more caches.
Apache Maven:
  • Maven is a build tool
  • It makes the deployment process so easy
  • You can easily integrate the required dependencies in your project using maven.
  • No need to integrate the libraries manually.
  • It automatically download and provided the dependencies in your build path.
  • Maven make the process of build easy
  • It provide perfect project information.
  • It allows transparent and easy migration to new features.
CI/CD and DevOps:
  • CI/CD : Continuous Integration/Continuous Deployment.
  • It is the prime focus of the modern software development. 
  • It automate the building of softwares by integrating building, testing, and deployment of respective applications. 
  • It bridge the gap among development and operation teams
  • CI/CD follows the given steps:
  • Version Control > Build > Unit_Test > Deploy > Auto_Test > Deploy_to_Production
  • DevOps is an Approach to develope softwares with following methodologies
  • Continuous Development:
  • Continuous Testing:
  • Continuous Integration:
  • Continuous Deployment:
  • Continuous Monitoring:
  • This process is adopted by majorly the top companies for developing quality products in short lifecycles.
  • It result in best customer satisfaction.
  • Jenkins provides us the tools and required interface to automate the complete process.