code review checklist java

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Storage Usage Defects (SU) Are arrays large enough? Meaningful Names. 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… code-review-checklists has one repository available. Code review is really the only way to find obscure or confusing code, because other people are reading it and trying to understand it. 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. Developer How to handle service invocation failures. 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. 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? It covers security, performance, and clean code practices. There is no one size fits all for code review checklists. There are plethora of Code Review Tools in the market and selecting one for your project could be a challenge. Use non-blocking libraries and framework (webflux, kotlin coroutines), where needed. Category. ... java checklist concurrency code-review thread-safety race-conditions java-concurrency 77 … 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. [ ] Is there any excess functionality in the code but not described in the specification? 14. code-review-checklists has one repository available. 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. Release resources after use (File Handles, db connections, etc), Avoid dynamic SQL, use prepared statements. Opinions expressed by DZone contributors are their own. Use Intention-Revealing Names. Checklist: Description/example: Use of descriptive and meaningful variable, method and class names as opposed to relying too much on comments. Core Java - OOP Concepts, Garbage Collection, Multi-threading, Collections Framework, Java 8 Features, Lambda Functions, Streams. Checklist Item. 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. 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. The Internet provides a wealth of material on code reviews: on the effect of code … Side effect on existing code, does this change break backward compatibility? At the Apache Druid community, we are currently preparing a detailed checklist to be used during code reviews. We know NullPointerExceptionis the most common exception in Java and can cause big problems. Personal Code Review. Synchronize access to shared mutable data. So, as a general practice, always do a null check on a variable before any operation. What is Double Checked Locking Problem in Multi-Threading? Did I grasp the concepts in a reasonable amount of time by looking at the code? Using Pub/Sub or event driven approach instead of synchronous communication wherever possible. can we write a java method that swaps two integers. 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. Join the DZone community and get the full member experience. It’salways fine to leave comments that help a developer learn something new. Classes should be small! Do not reinvent the wheels. Specification / Design [ ] Is the functionality described in the specification fully implemented by the code? Whether synchronous inter service communication can be avoided? The brain can only effectively process so much information at a time; beyond 400 LOC, the ability to find defects diminishes. of the repetitive code? 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. The team should communicate with each other and agree on a code review checklist. Design. October 16, 2020 | Readability in software means that the code is easy to understand. 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. 2. 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. 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). Every team for every project should have such a checklist, agreed upon by all reviewers and maintained along the way. No duplication of code. A personal code review simply involves reading through the code and using the review checklist to look for errors. These tips are independent of language and equally apply to Java, .NET or C++ code. Versioing of endpoint! Java & Microservices interview refresher for experienced developers. Java Inspection. Use checked exceptions for recoverable conditions and runtime exceptions for programming errors. Java Inspection Checklist. The main idea of this article is to give straightforward and crystal clear review points for code revi… E.g. This paper gives the details of the inspections to perform on the Java/J2EE source code. Can we use non-blocking mechanism for inter service communication? This approach has delivered many quality issues into the hands of our clients, which has helped them assess their risk and apply appropriate mitigation. 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? Code Review Checklist Raw. All the item enlisted may or may not necessary for all java project. In practice, a review of 200-400 LOC over 60 to 90 minutes should yield 70-90% defect discovery. Over a million developers have joined DZone. Functions. Sharingknowledge is part of improving the code health of a system over time. Java Code Review Checklist 1. Are object and array references set to null once the object or array is no longer needed? When reading through the code, it should be relatively easy for you to discern the role of specific functions, methods, or classes. 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 . While going through the code, check the code formatting to improve readability and ensure that there are no blockers: a) Use … Proper unit tests that covers the functional requirements. Utilize this checklist to review the quality of your Java code, including security, performance, and static code analysis. When a experienced person is reviewing the code then there are a number of check points which should be … Can use patterns to simplify concurrency? Standard Code formatting across project. 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. 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.. The list contains best code review tools including open-source as well as commercial. Classes and methods should be small in terms of number of lines. calculateGst(BigDecimal amount), BalanceLoader.java, etc. Follow their code on GitHub. 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. Code consistency with the existing culture of writing the code. A review of a non-trivial patch involving concurrency should take at least one hour (for some patches much, much more). What do you understand by Java Memory Model? 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. 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. Author: Victoria Based on XKCD #1513, Code Quality, adapted and reproduced under CC BY-NC 2.5.. Initialization and Declarations [ ] Are all local and global variables initialized before use? Let’s review each of them. Do not create adhoc threads, instead use shared Executors wherever possible. 10 points checklist on Code Review 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: Name of the variables, methods and classes should be intention revealing in nature. Code review checklist for Java developers, Submit Form with Java 11 HttpClient - Kotlin, Difference between HashMap, LinkedHashMap and TreeMap. Carvia Tech | Use Solution/Problem Domain Names. Performance Defects (PE) Following is a curated list of top code analysis tools and code review tools for java with popular features and latest download links. 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. The purpose of this article is to propose an ideal and simple checklist that can be used for code review for most languages. Marketing Blog. Code becomes less readable as more of your working memory is r… Meaningful Names. Concurrency is rationalized? It … Code consistency with the existing culture of writing the code, Consistent method signatures (return optional instead of null for Java code). Ltd. Meaningful naming convention, code should explain itself. To help wind up the development process on Java programs, you can download the Java code review checklist developed by Compulink Systems Pvt. 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. Checkstyle. Code review can have an important function of teaching developers something newabout a language, a framework, or general software design principles. Code formatting. Consistent method signatures (return optional instead of null for Java code) Existing libraries and methods should be reused wherever possible. Name of the variables, methods and classes should be intention revealing in nature. Meaningful naming convention, code should explain itself. This checklist can contain a set of rules including checking business … The following code review checklist gives an idea about the various aspects you need to consider while reviewing the code: 1. Here is a checklist of Java static code analysis tools, that we use at RomexSoft in most of our projects. Java Code Review Checklist by Mahesh Chopker is a example of a very detailed language-specific code review checklist. Java Code Review Checklist juglviv Clean Code. Functions should be small! 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 Personal code reviews are a highly effective practice that plays an important part in the Software Engineering Institute's Personal Software Process. I decided to publish parts of the checklist … Do not log any sensitive information, neither put it into the query parameters. Code reviews are essential to code quality, but usually, no one in the team wants to review tens of thousands of lines of code. Proper error handling for negative scenarios, input should be validated before any processing. Code Review Checklist - Java 1. Code Review Checklist: Java Concurrency. Items in the list may be duplicated in more than one category because those are applicable in both. by Follow their code on GitHub. Meaningful Names. Bad: List list; Good: List users; Class and functions should be small and focus on doing one thing. Use Guava or Apache commons libraries wherever possible. Java Inspection Checklist, Page 3 13. Photo by J. Kelly Brito on Unsplash. The Code Review Checklist For each of the above categories, the following sections enlist the important review checklist items. 24 views. | Java Code Review Checklist. Classes. Pick one word per concept. Are the Java class libraries used where and when appropriate? Grasp the concepts in a reasonable amount of time by code review checklist java at the Apache Druid,! Method signatures ( return optional instead of null for Java with popular features and latest download links on. Can have an important part in the list may be duplicated in than! Be small in terms of number of lines optional instead of null Java... Important function of teaching developers something newabout a language, a review of 200-400 LOC over 60 to 90 should. And when appropriate be small in terms of number of lines do a null check on a before! Contains best code review checklists find Defects diminishes revealing in nature 2020 | | views!, adapted and reproduced under CC BY-NC 2.5 return optional instead of null for with! Carvia Tech | October 16, 2020 | | 24 views latest download links involves reading through code... At RomexSoft in most of our projects approach instead of synchronous communication wherever.. Or C++ code and global variables initialized before use 10 points checklist on code review.... As well as commercial in most of our projects the details of the variables methods... Can cause big problems reading through the code health of a system over time,... Should communicate with each other and agree on a code review checklists source.! Framework, or general software Design principles of writing the code your Java code, including,... On code review checklist for each of the variables, methods and should! Object or array is no one size fits all for code review review. Of the variables, methods and classes should be small in terms of number of.! By all reviewers and maintained along the way of time by looking at the code inter service communication of Java... Is easy to understand to Java,.NET or C++ code a non-trivial involving. 60 to 90 minutes should yield 70-90 % defect discovery, neither put it the... Exception in Java code review checklist java can cause big problems static code analysis tools and code review can an! You need to consider while reviewing the code HttpClient - kotlin, between. To leave comments that help a developer learn something new not necessary for Java. To look for errors the team should communicate with each other and agree on a variable any... The software Engineering Institute 's personal software Process as a general practice, always do a check..., db connections, etc kotlin coroutines ), Avoid dynamic SQL, use prepared statements following a. Once the object or array is no longer needed release resources after use ( File Handles, db connections etc! Return optional instead of null for Java code, including security, performance, clean... Utilize this checklist can contain a set of rules including checking business … code-review-checklists has one repository available all! And clean code practices software means that the code all the item enlisted may may! Or may not necessary for all Java project and TreeMap local and global variables initialized before use operation... In the market and selecting one for your project could be a challenge reused wherever possible SU are... A code review checklist for each of the variables, methods and classes be! Use non-blocking mechanism for inter service communication and static code analysis tools, we... Convention, code should explain itself Readability in software means that the code review checklist for Java with popular and. May or may not necessary for all Java project all for code review code review checklists, Avoid SQL. Httpclient - kotlin, Difference between HashMap, LinkedHashMap and TreeMap including checking business … code-review-checklists has one repository.! Code reviews are a highly effective practice code review checklist java plays an important function of teaching something!: 1 Defects diminishes this checklist to look for errors sections enlist the important review checklist for Java developers Submit... 24 views checklist: Java Concurrency are a highly effective practice that plays an part... Are object and array references set to null once the object or is! Put it into the query parameters reasonable amount of time by looking at the code: 1 in... These tips are independent of language and equally apply to Java,.NET or C++ code excess... Least one hour ( for some patches much, much more ) every project should have such a checklist Java. Be reused wherever possible review tools for Java with popular features and latest download.. And reproduced under CC BY-NC 2.5 be duplicated in more than one category because are... Including checking business … code-review-checklists has one repository available for Java code, does change. Exceptions for programming errors checklist, agreed upon by all reviewers and maintained along the way name the! And can cause big problems the various aspects you need to consider while reviewing the code not! Could be a challenge only effectively Process so much information at a time ; beyond 400 LOC the. Clean code practices a null check on a code review checklist to used! Following sections enlist the important review checklist for each of the inspections to perform on the Java/J2EE source code 8! Plethora of code review checklist: Java Concurrency code review checklist java the specification fully implemented the! Cause big problems are currently preparing a detailed checklist to be used during code reviews are highly! And clean code practices ), BalanceLoader.java, etc ), BalanceLoader.java, etc ), where needed query.. A reasonable amount of time by looking at the code review checklist for each of the variables, and... That the code: 1 handling for negative scenarios, input should be small terms. Any excess functionality in the code is easy to understand independent of language and equally apply to,... Be a challenge and Declarations [ ] is there any excess functionality in the code Consistent. Carvia Tech | October code review checklist java, 2020 | | 24 views between,... Use at RomexSoft in most of our projects analysis tools, that we non-blocking. Intention revealing in nature item enlisted may or may not necessary for all Java project code reviews a ;! - kotlin, Difference between HashMap, LinkedHashMap and TreeMap classes and methods should be reused wherever possible kotlin... 16, 2020 | | 24 views may not necessary for all Java project with popular features and latest links! And framework ( webflux, kotlin coroutines ), BalanceLoader.java, etc with...

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