code review checklist java

Follow their code on GitHub. Initialization and Declarations [ ] Are all local and global variables initialized before use? As outlined in Tips for an Effective SAP Commerce Cloud Code Review, it's important to be able to deliver code reviews consistently across your team.This page provides a checklist of items to verify when doing code reviews. It … 24 views. Whether synchronous inter service communication can be avoided? The security code review checklist in combination with the secure code review process described above, culminates in how we at Software Secured approach the subject of secure code review. Java Inspection Checklist, Page 3 13. Here is a checklist of Java static code analysis tools, that we use at RomexSoft in most of our projects. Checklist: Description/example: Use of descriptive and meaningful variable, method and class names as opposed to relying too much on comments. We know NullPointerExceptionis the most common exception in Java and can cause big problems. The brain can only effectively process so much information at a time; beyond 400 LOC, the ability to find defects diminishes. Concurrency is rationalized? Do not reinvent the wheels. Photo by J. Kelly Brito on Unsplash. Code Review Checklist: Java Concurrency. Ltd. Java Inspection Checklist. Design. Standard Code formatting across project. Code becomes less readable as more of your working memory is r… Code review checklist for Java developers, Submit Form with Java 11 HttpClient - Kotlin, Difference between HashMap, LinkedHashMap and TreeMap. Name of the variables, methods and classes should be intention revealing in nature. Java Code Review Checklist 1. Immutability/Snapshotting; Divide and conquer; Producer-consumer; Instance confinement; Thread/Task/Serial thread confinement; Active object; Code smells, identifying that a class or a subsystem could potentially be redesigned for better: code_review_checklist.txt - General [ ] The code works [ ] The code is easy to understand ... Methods return early without compromising code readability - Java only [ ] Appropriate JCIP annotations are used [ ] No use of Object class, use generics instead A review of a non-trivial patch involving concurrency should take at least one hour (for some patches much, much more). Use non-blocking libraries and framework (webflux, kotlin coroutines), where needed. Apart from functional requirements, here is the code review checklist while reviewing any Java code: Code should be clean and follow design patterns wherever applicable, is there a potential for useful abstractions, Thread-safety and concurrency related guidelines. What do you understand by Java Memory Model? Meaningful Names. Code review can have an important function of teaching developers something newabout a language, a framework, or general software design principles. A SmartBear study of a Cisco Systems programming team revealed that developers should review no more than 200 to 400 lines of code (LOC) at a time. Following is a curated list of top code analysis tools and code review tools for java with popular features and latest download links. Storage Usage Defects (SU) Are arrays large enough? of the repetitive code? In this case, understanding code means being able to easily see the code’s inputs and outputs, what each line of code is doing, and how it fits into the bigger picture. Creating a code review checklist means you, and your whole team will have a codified reference point for your code quality, which will help streamline your code review process and ensure that the process is as refined as possible. Use Intention-Revealing Names. Code Review Checklist and Best practices in Java What to review while doing Code review Code Review and Unit testing are some of the best development practices I always recommend, strive for, and enforce as much as possible. Can we use non-blocking mechanism for inter service communication? A personal code review simply involves reading through the code and using the review checklist to look for errors. Code consistency with the existing culture of writing the code, Consistent method signatures (return optional instead of null for Java code). Java & Microservices interview refresher for experienced developers. Meaningful Names. Core Java - OOP Concepts, Garbage Collection, Multi-threading, Collections Framework, Java 8 Features, Lambda Functions, Streams. Even though there are a lot of code review techniques available everywhere along with how to write good code and how to handle bias while reviewing, etc., they always miss the vital points while looking for the extras. Personal code reviews are a highly effective practice that plays an important part in the Software Engineering Institute's Personal Software Process. Proper unit tests that covers the functional requirements. At the 22nd International Conference on Software Engineering, Alastair Dunsmore, Marc Roper, and Murray Wood presented the findings of their study on three different techniques for code review.. Let’s review each of them. Over a million developers have joined DZone. Bad: List list; Good: List users; Class and functions should be small and focus on doing one thing. ... java checklist concurrency code-review thread-safety race-conditions java-concurrency 77 … I decided to publish parts of the checklist … This checklist can contain a set of rules including checking business … Code consistency with the existing culture of writing the code. code-review-checklists has one repository available. Code Review Checklist in Java: Code reviewing is a good practice and helps in improving the code quality and avoid unnecessary bugs resulting from poor coding practices. This paper gives the details of the inspections to perform on the Java/J2EE source code. Classes should be small! Specification / Design [ ] Is the functionality described in the specification fully implemented by the code? October 16, 2020 | can we write a java method that swaps two integers. Do not log any sensitive information, neither put it into the query parameters. The Internet provides a wealth of material on code reviews: on the effect of code … The first approach was a “checklist review” which outlined specific things that a reviewer should check for at the class, method, and class-hierarchy levels. These tips are independent of language and equally apply to Java, .NET or C++ code. Meaningful Names. Versioing of endpoint! Java Code Review Checklist by Mahesh Chopker is a example of a very detailed language-specific code review checklist. 2. Don't Repeat Yourself (Avoid Duplication), Make sure the code formatting is applied, Use Exceptions rather than Return codes, Make class final if not being used for inheritance, Restrict privileges: Application to run with the least privilege mode required for functioning, Minimize the accessibility of classes and members, Input into a system should be checked for valid data size and range, Avoid excessive logs for unusual behavior, Release resources (Streams, Connections, etc) in all cases, Purge sensitive information from exceptions (exposing file path, internals of the system, configuration), Do not log highly sensitive information, Consider purging highly sensitive from memory after use, Avoid dynamic SQL, use prepared statement, Limit the accessibility of packages,classes, interfaces, methods, and fields, Limit the extensibility of classes and methods (by making it final), Validate inputs (for valid data, size, range, boundary conditions, etc), Validate output from untrusted objects as input, Define wrappers around native methods (not declare a native method public), Treat output from untrusted object as input, Make public static fields final (to avoid caller changing the value), Avoid exposing constructors of sensitive classes, Avoid serialization for security-sensitive classes, Guard sensitive data during serialization, Be careful caching results of potentially privileged operations, Beware the performance of string concatenation, Use checked exceptions for recoverable conditions and runtime exceptions for programming errors, Return empty arrays or collections, not nulls, In public classes, use accessor methods, not public fields, Adhere to generally accepted naming conventions, Always override hashCode when you override equals, Synchronize access to shared mutable data, Check static code analyzer report for the classes added/modified. Pick one word per concept. The Code Review Checklist For each of the above categories, the following sections enlist the important review checklist items. by Classes and methods should be small in terms of number of lines. Category. 30+ Java Code Review Checklist Items This Java code review checklist is not only useful during code reviews, but also to answer an important Java job interview question, Q. Code Decisions code at right level of abstraction methods have appropriate number, types of parameters no unnecessary features redundancy minimized mutability minimized static preferred over nonstatic ... Code Review Checklist . Release resources after use (File Handles, db connections, etc), Avoid dynamic SQL, use prepared statements. These are the things which I have been accumulated over the years but I also look forward to you guys to contribute your experience, best practices for code review and suggest how you guys do code review. Name of the variables, methods and classes should be intention revealing in nature. Functions. Marketing Blog. Did I grasp the concepts in a reasonable amount of time by looking at the code? Sharingknowledge is part of improving the code health of a system over time. code-review-checklists has one repository available. Readability in software means that the code is easy to understand. Follow their code on GitHub. Can use patterns to simplify concurrency? Join the DZone community and get the full member experience. Checkstyle. Java Code Review Checklist. Carvia Tech | [ ] Is there any excess functionality in the code but not described in the specification? The following code review checklist gives an idea about the various aspects you need to consider while reviewing the code: 1. All the item enlisted may or may not necessary for all java project. This approach has delivered many quality issues into the hands of our clients, which has helped them assess their risk and apply appropriate mitigation. Java Code Review Checklist juglviv Clean Code. The team should communicate with each other and agree on a code review checklist. It’salways fine to leave comments that help a developer learn something new. Do not create adhoc threads, instead use shared Executors wherever possible. Using Pub/Sub or event driven approach instead of synchronous communication wherever possible. Every team for every project should have such a checklist, agreed upon by all reviewers and maintained along the way. So, as a general practice, always do a null check on a variable before any operation. Security Code Review- Identifying Web Vulnerabilities 1.1.1 Abstract This paper gives an introduction of security code review inspections, and provides details about web application security vulnerabilities identification in the source code. How will you increment each element of an Integer array, using parallel operation, What is left shift right shift and unsigned rght shift operator in Java, ebook PDF - Cracking Spring Microservices Interviews for Java Developers, ebook PDF - Cracking Java Interviews v3.5 by Munish Chandel. In practice, a review of 200-400 LOC over 60 to 90 minutes should yield 70-90% defect discovery. Java Inspection. Use Guava or Apache commons libraries wherever possible. So reviews are slowed down by 15% in exchange of better quality of the code (including readability and maintainability, that will pay off later in terms of time). When reading through the code, it should be relatively easy for you to discern the role of specific functions, methods, or classes. Code Review Checklist Static Code Analysis Checklist Item Category Notes Check static code analyzer report for the classes added/modified Static Code Analysis There must be automated Code Analysis for the project you are working on, do not forget to check the report for the modified/added classes. Just keepin mind that if your comment is purely educational, but not critical to meetingthe standards described in this document, prefix it with “Nit: “ or otherwiseindicate that it’s not mandatory for the author to resolv… Developer 14. Meaningful naming convention, code should explain itself. The main idea of this article is to give straightforward and crystal clear review points for code revi… Variable, Attribute, and Constant Declaration Defects (VC) ... Is there repetitive code that could be replaced by a call to a method that provides the behavior of the repetitive code? Performance Defects (PE) Proper error handling for negative scenarios, input should be validated before any processing. Opinions expressed by DZone contributors are their own. Are the Java class libraries used where and when appropriate? Checklist Item. | What is Double Checked Locking Problem in Multi-Threading? There is no one size fits all for code review checklists. Existing libraries and methods should be reused wherever possible. At the Apache Druid community, we are currently preparing a detailed checklist to be used during code reviews. How to handle service invocation failures. Meaningful naming convention, code should explain itself. Code Review Checklist - Java 1. Code review is really the only way to find obscure or confusing code, because other people are reading it and trying to understand it. While going through the code, check the code formatting to improve readability and ensure that there are no blockers: a) Use … E.g. Code formatting. Author: Victoria Utilize this checklist to review the quality of your Java code, including security, performance, and static code analysis. Use Solution/Problem Domain Names. Code Review Checklist Raw. Are object and array references set to null once the object or array is no longer needed? There are plethora of Code Review Tools in the market and selecting one for your project could be a challenge. Personal Code Review. Items in the list may be duplicated in more than one category because those are applicable in both. Using judicious comments, avoiding magic numbers, keeping one purpose for each variable, using good names, and using whitespace well can all improve the understandability of code. Are the Java class libraries used where and when appropriate? Functions should be small! It covers security, performance, and clean code practices. Consistent method signatures (return optional instead of null for Java code) Side effect on existing code, does this change break backward compatibility? Use checked exceptions for recoverable conditions and runtime exceptions for programming errors. The purpose of this article is to propose an ideal and simple checklist that can be used for code review for most languages. Based on XKCD #1513, Code Quality, adapted and reproduced under CC BY-NC 2.5.. Code reviews are essential to code quality, but usually, no one in the team wants to review tens of thousands of lines of code. To help wind up the development process on Java programs, you can download the Java code review checklist developed by Compulink Systems Pvt. Synchronize access to shared mutable data. When a experienced person is reviewing the code then there are a number of check points which should be … 10 points checklist on Code Review No duplication of code. The list contains best code review tools including open-source as well as commercial. Classes. calculateGst(BigDecimal amount), BalanceLoader.java, etc. Array is no one size fits all for code review tools for Java with popular and... Team for every project should have such a checklist of Java static code analysis tools, that we non-blocking! On code review checklist for Java with popular features and latest download links code review checklist java equally to... Object or array is no longer needed Java class libraries used where when! The important review checklist to be used during code reviews are a highly effective practice plays... Should take at least one hour ( for some patches much, much more ) items in the contains. Inspections to perform on the Java/J2EE source code preparing a detailed checklist to review the quality of your Java )... Code is easy to understand it … Readability in software means that the review... Write a Java method that swaps two integers carvia Tech | October 16, 2020 | 24... ( return optional instead of synchronous communication wherever possible is the functionality described the. Contain a set of rules including checking business … code-review-checklists has one repository.... Signatures ( return optional instead of null for Java code ) ( return optional of! A time ; beyond 400 LOC, the following sections enlist the important review checklist gives idea! The above categories, the ability to find Defects diminishes software Process the details of the inspections to on... Only effectively Process so much information at a time ; beyond 400 LOC, the ability to find diminishes. Handling for negative scenarios, input should be validated before any operation,... By all reviewers and maintained along the way, and clean code practices of rules including checking business … has... Is the functionality described in the specification tools, that we use at in. Oop concepts, Garbage Collection, Multi-threading, Collections framework, Java features! Tools and code review checklist items File Handles, db connections, )!, much more ) a personal code reviews are a highly effective practice plays! Existing libraries and framework ( webflux, kotlin coroutines ), Avoid SQL! An important part in the market and selecting one for your project could be a challenge could be a.! Static code analysis tools and code review checklist the variables, methods and classes should small. I grasp the concepts in a reasonable amount of time by looking at the code 1. Defects diminishes release resources after use ( File Handles, db connections, etc,!, we are currently preparing a detailed checklist to look for errors including security performance! Much more ) of lines the details of the inspections to perform on the Java/J2EE code... Checklist can contain a set of rules including checking business … code-review-checklists has one repository available lines... Etc ), where needed 10 points checklist on code review tools Java! A variable before any processing revealing in nature a developer learn something new concepts in reasonable! Not create adhoc threads, instead use shared Executors wherever possible framework, general... With popular features and latest download links | 24 views details of the variables, methods and classes be!

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