1、Java Developer Productivity ReportJava Development Trends and AnalysisExecutive SummaryThe 2023 Java Developer Productivity Report is an annual report that showcases the top tools,technologies,and development trends shaping the Java ecosystem.In addition,the report measures how advancement in these

2、tools impacts Java development team productivity.JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report2Table of ContentsForeword.03About the Survey.04Survey Results.08Java Langu

3、age and Development Trends 09Upgrade Influences.11JRE/JDK Distributions.12Budget Upgrade Plans.13Adding Java Developers.13Java Application Architecture Trends 14Microservices Trends 15Microservice Adoption Status.15Microservices Per Application.16Microservice Framework Usage.17Microservice Applicati

4、on Start-Up Times.18Microservice Application Redeployment Times.19Java Technology Trends 20Java PaaS Providers.20Application Servers.21Java IDEs.22Developer Productivity Trends 23Developer Tool Budget.23Redeploy Times.24Biggest Obstacles.25What Teams Would Do Without Redeploys.26Closing Thoughts.27A

5、bout JRebel.27JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report3Foreword Dear Colleagues,Welcome to the 2023 Java Developer Productivity Report from JRebel by Perforce!Java

6、is one of the most popular programming languages in the world and is widely used for developing various types of applications,from web and mobile to desktop and enterprise software.As a Java developer,your skills and expertise are in high demand just as much as your insights and opinions are valuabl

7、e for the broader Java community.Since the inception of this survey in 2012,our aim has been to gain a better understanding of the current state of the Java development ecosystem including the tools and technologies used,the challenges developers face,and the emerging trends thatll shape the future

8、of Java development.Respondents throughout the world have helped us gather valuable data to inform our research,as well as provide insightful perspectives for Java developers,employers,and the overall Java community.As for the big takeaways for Java in 2023?Java developers continue to be high in dem

9、and,which is encouraging with Java being the programming language of choice for large enterprise applications.Productivity,particularly in Java development,remains to be a major area of focus as microservice environments continue to expand both in size and redeploy times.Organizations will keep find

10、ing ways to create innovative Java applications and boost productivity including adding tools like JRebel.As product manager of JRebel,this data also helps provide me with a better understanding of what developers need whether its deciding on a new application architecture or adopting a new IDE and

11、how to best tailor our solutions to meet those ever-growing needs.So I hope you find my specific takeaways on each result insightful and beneficial for your Java initiatives!We appreciate your time and contribution to this survey and look forward to sharing the results with you.Lets get started!Happ

12、y reading,Curtis Johnson Product Manager JRebel by PerforceJRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report4About the SurveyThe 2023 Java Developer Productivity Report is b

13、ased on a survey of Java development professionals around the world.The survey,which ran from November 2022January 2023,drew a total of 411 responses.The survey focused primarily on the Java technologies and approaches used in developing Java applications today.We also included questions specific to

14、 performance issues and microservices,as well as organization firmographics.JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report5Reporting&Analysis Methodology For the purposes

15、 of this report,we omitted any responses representing less than 1%of the total respondents.We also rounded each value to the nearest full percentage point to simplify analyzing the results.Where beneficial,we used the organizations firmographic data to help form additional insights around the genera

16、l data.Respondent Demographics and Organization FirmographicsIn our first firmographic question,we asked respondents to share the location of their company headquarters.While this isnt indicative of where the bulk of a given companys work is being done(especially with larger companies),it can help u

17、s frame the results of the survey within the context of regionality.Companies were represented from around the world,but the largest contingents(by country)belonged to the United States and China.JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of th

18、eir respective owners.(0320TKP23)2023 Java Developer Productivity Report6Job TitleRespondents were asked to share their job role within their company.Like previous years,the respondents were primarily developers or similar,representing nearly 45%of the overall data.When combined with the second most

19、 popular job title among respondents java architect that number grew to 65%of all respondents.There were also a fair number of leadership roles represented,with team leads representing 18%and director roles representing 8%.Development Team SizeWe then asked respondents to share the size of their dev

20、elopment team,with options that ranged from 12 to 100+developers.The most common development team size was in the 39 developer range,which represented nearly half of all respondents.Teams of 10+represented 44%of respondents,with 19%of the total in the 1020 developer range.This is expected,as compani

21、es have leaned more toward dividing teams based on feature sets especially when it comes to keeping and maintaining microservice environments.JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer P

22、roductivity Report7Company SizeFor our last firmographic question,we asked respondents to share the estimated size of their company,with options broken down into teams of 120,20100,1001000,1000+,and freelance categories.Respondents reported that most of their companies were at the large,enterprise s

23、cale,with 45%having a company size of over 1000 employees.This is expected as Java continues to be the main programming environment used by enterprise applications.Mid-sized companies with 1001000 employees were the next highest group at 22%.Small companies with 20100 employees represented 13%of res

24、pondents,followed by startups(120 employees)and contractors each at 10%.JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report8Survey ResultsWith the demographic questions out of

25、 the way,we jumped into the heart of the survey:Java Language and Development trends.These questions also appeared in previous versions of the Java Developer Productivity surveys,allowing us to judge the adoption trajectory of a few key Java technology versions.JRebel by Perforce Perforce Software,I

26、nc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report9Java Language and Development TrendsThis section will focus mainly on the technologies used throughout the Java community,which is a critical aspect of understan

27、ding what Java developers utilize.Many Java development teams can use this information to gain insight into what may work best for their own Java application,as well as to investigate other technologies in the market.For the first question,we asked respondents to share which JDK programming language

28、 theyre using in their main application,with options that grouped Java versions into Java 7 or older,Java 8,Java 11,Java 17,and Java 18 or newer.We also included the JVM-compatible languages Kotlin,Groovy,and Scala.As with last years report,most respondents reported using Java 8(31%)as their program

29、ming language on their primary application.This was followed by Java 11(28%),Java 17(19%),Java 18 or newer(6%),and Java 7 or older(3%).Kotlin,Groovy,and Scala were the least favored among these choices,representing a combined 13%of the total respondents.When looking at responses based on company siz

30、e,Java 8 usage was slightly higher among companies with under 100 employees,while they continued to show elevated usage of Java versions 11 and newer.Meanwhile,companies with over 100 employees showed nearly equal usage of Java 11 and Java 8.Which JDK Programming Languages Are You Using in Your Main

31、 Application?JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report10Companies With Under 100 EmployeesCompanies With Over 100 EmployeesThis may be the first year that weve start

32、ed to see some considerable changes to the amount of users that have been using Java 8.With over half of the respondents using newer versions of Java,these are the first signs of companies starting to transition their Java environments to newer technologies.Most expected it to take some time for com

33、panies to start to transition away from legacy Java versions and into the new cadence within the Java ecosystem.Going forward,we may see much more regular updates of Java versions.JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective o

34、wners.(0320TKP23)2023 Java Developer Productivity Report11Upgrade InfluencesNext,we asked respondents to share the factors that influence their decision to upgrade JDK versions.The answers were largely as expected,with the majority of respondents reporting long-term support(LTS)as the predominant fa

35、ctor for upgrading JDK versions.After LTS,security and new features were the top factors,at 24%and 18%,respectively.Performance(17%)and compliance(15%)were the least popular factors for upgrading.In segmenting the results by company size,we found that large,mid-size,and small companies listed LTS as

36、 their primary influence on upgrading JDK versions.With the growing amount of companies moving to a new Java version,the reason for this transition is important to understand.It makes sense that LTS and security make up nearly 50%of the responses since theyre both similar factors.As Oracle has dropp

37、ed active support for Java 8 nearly a year ago(while still providing extended support until 2030),more and more security reasons have been presented to organizations to adapt to these newer versions.Which Factors Influence Your Decision to Upgrade JDK Versions?JRebel by Perforce Perforce Software,In

38、c.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report12JRE/JDK DistributionsOur next question asked respondents to share which JRE/JDK distributions they use.Like last years results,Oracle Java remained the distribut

39、ion of choice at 30%.Generic OpenJDK and AdoptOpenJDK/Adoptium rounded out the top three at 21%and 15%,respectively.OpenLogic distributions of OpenJDK had 2%representation among survey respondents.Which JRE/JDK Distribution Do You Use?JRebel by Perforce Perforce Software,Inc.All trademarks and regis

40、tered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report13Adding Java DevelopersEvery company has a desire to have good and effective Java developers.Even with the market the way it is,its clear that the need for Java developers remains very str

41、ong.This is always a reassuring sign to see throughout the Java community.Theres a continuing desire and need for good Java developers as we move into 2023.Java,no matter how much you might not think so,continues to be the programming language of choice for large enterprise applications and is still

42、 widely used to this day.We do not see this trend changing anytime soon.Does Your Company Have Plans to Add Additional Java Developers in 2023?Budget Upgrade PlansHere we asked respondents to indicate whether or not their company has plans to increase their budget for Java development tools.With com

43、panies continuing to hire Java developers,theres an increased need for technology to enhance their experience.The more effective your Java developers are at creating applications,the better chance of retention and the better your application will be.Does Your Company Have Plans to Increase Your Java

44、 Development Tool Budget in 2023?JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report14Java Application Architecture Trends Here we asked respondents to share the architecture

45、of the primary application they develop.Microservice-based applications were the most popular at 32%,followed by Monolithic applications at 22%.Next,Modular Monolithic applications made up 12%of responses,while service-oriented architectures came in at 10%.Larger companies continue to show increased

46、 usage of microservices at 35%a stark contrast to 28%coming from smaller companies.What Is the Architecture of the Main Application You Develop?Companies With Under 100 EmployeesCompanies With Over 100 EmployeesJRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the

47、 property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report15The growth of microservices as the solution for Java applications has reached its height of popularity within the Java ecosystems used by companies.There are a number of reasons for this including the costly tra

48、nsition of the architecture of your application to microservices,as well as creating more hybrid-focused applications that have proven to be more fruitful for well-established applications.These factors account for why theres a larger percentage of microservices that have been adopted by the larger,

49、100+employee companies.Microservices TrendsFor respondents who reported using microservices,we asked a series of questions related to their status in adopting microservices,how theyre using microservices,the number of microservices in their application,and their choice in microservice-based applicat

50、ions.Microservice Adoption StatusIn this question,we asked respondents to share their status for microservice adoption.The responses showed that most organizations either had fully microservice-based applications,were currently in planning stages,or were currently transitioning to a microservices ar

51、chitecture.What Is Your Status for Microservice Adoption?JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report16Microservices Per ApplicationWe then asked about the number of mi

52、croservices that comprise the respondents microservice-based application.27%reported having 15 microservices,while 16%reported having 610 microservices.At the higher end of the scale,8%indicated having 1120 microservices,and 17%indicated having more than 21 microservices.Those who reported not havin

53、g insight into the number of microservices used in their application accounted for 15%of the total,while 18%reported having none.Companies With Under 100 EmployeesCompanies With Over 100 EmployeesCompanies With Over 1000 EmployeesThis was an interesting segmentation showing how the size of the compa

54、ny considerably impacted the number of microservice applications used.It makes sense that the larger the company,the larger the amount of microservices utilized.The reality is,microservices have been around for a while,which appears to have allowed larger companies to implement an extensive number o

55、f microservices in their applications.How Many Microservices Do You Have in Your Primary Application?JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report17Microservices Framewo

56、rk UsageIn our next question,we asked respondents to share their top choice in microservice application framework.Like last year,Spring Boot remained the top microservice application framework at 59%.Quarkus,Micronaut,DropWizard,and Vert.x rounded out the bottom four at 8%,6%,2%,and 1%,respectively.

57、Common frameworks in the“Other”category included enterprise application specifications like MicroProfile,as well as the Spring framework.However,the most common“Other”response was that they werent using a microservice framework at all.What Microservice Application Framework Are You Using on Your Mai

58、n Project?JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report18Microservice Application Start-Up TimesIn this question,we asked respondents to estimate the percentage increase

59、 in start-up time that their microservice-based application has experienced since the time it was created.Our survey found that a combined 50%had experienced an increase,while 50%had not.Slightly higher than last years results,17%of respondents(compared to 13%in 2022)reported over a 50%increase in s

60、tart-up times for their microservice-based application since its creation.Have You Experienced an Increase in the Time It Takes to Start Up the Services in Your Microservice Application Since the Original Transition/Creation of the Microservice?JRebel by Perforce Perforce Software,Inc.All trademarks

61、 and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report19Microservice Application Redeployment Times We then asked respondents to weigh in on the time it takes to remotely deploy their containerized environment.Our survey found 46%of

62、respondents reporting a redeployment time of over five minutes,with 29%accounting for 10+minutes.This is always an interesting question,considering the large number of microservices in the Java community that face considerable pain when it comes to the application start-up time and the actual deploy

63、ment of that code.The complex and detailed architecture to manage these large microservice applications makes it challenging for the average developer writing code every day.We found larger companies experiencing higher redeploy times,with 65%reporting times of over five minutes compared to 38%of sm

64、aller companies.How Long Does It Take You to Remotely Deploy Your Containerized Environment?Companies With Under 100 EmployeesCompanies With Over 100 EmployeesJRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023

65、 Java Developer Productivity Report20Java Technology TrendsAt JRebel,we have a vested interest in staying current with the latest trends in Java development technologies.Every year,we ask Java users to share information about the tools they use to develop Java applications.This year,we asked teams t

66、o share their tool usage for cloud platforms,application servers,and IDEs.Java PaaS ProvidersFirst,we asked respondents to share which cloud platform or platform as a service(PaaS)they use with their Java applications.Like last year,results showed AWS as the most popular choice at 25%.Azure came in

67、second at 15%,followed by those who dont use PaaS providers at 14%.We saw a rise in IBM Cloud usage over last years results at 13%,with Red Hat coming in next at 12%.If You Use a Platform,Who Is Your PaaS Provider?JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are

68、the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report21Application ServersWe then asked surveyors to share details on the application server they use in developing Java applications.As with previous years,Apache Tomcat came in at the top accounting for 44%of all

69、responses.Tomcat was followed by WebSphere(13%),Jetty(10%),JBoss/WildFly(9%),None(8%),WebLogic(6%),and GlassFish(4%).Among respondents who selected“Other,”Payara continued to be the most common choice.How Do You Configure Most of Your Frameworks?Tomcat once again dominating the application servers u

70、sed by developers is expected.A surprising element is the amount of WebSphere users.Most of our surveys over the years have kept WebSphere and WebLogic usage around the same result,ranging between 58%of respondents.While the growth for WebSphere is unclear,it will be interesting to watch in the futu

71、re.JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report22Java IDEsEvery year,we also ask respondents to share their preferred IDE.Accounting for 42%of total respondents,Intelli

72、j IDEA was once again the most popular choice.Intellij was followed by Eclipse(27%),VSCode(22%),and NetBeans(5%).When it came to combining IDEs(as we allowed respondents to select more than one option),most respondents utilized either IntelliJ and VSCode or IntelliJ and Eclipse.VSCode has clearly be

73、come more relevant in the Java community with its increasing usage amongst Java developers.With more responsibilities falling on the plate for Java developers,theyre being forced to use additional IDEs to meet the needs of different aspects of their development practices.VSCode,while showing conside

74、rable growth in usage,was mainly used alongside another more established IDE,like IntelliJ or Eclipse.What Developer IDE Do You Use Professionally?JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Develo

75、per Productivity Report23Developer Productivity TrendsOne of our favorite parts of our survey each year is asking about redeploy times.For those that arent familiar with JRebel,we ask about this because JRebel helps Java developers completely bypass the redeployment process during Java development.W

76、hen you consider the time wasted per redeploy,and the number of times the average Java developer redeploys their application every day,this time spent can be a costly impediment to efficient Java development.In the next questions,we dive in on those numbers asking developers to share their experienc

77、es with redeploy times,their largest obstacles,and what teams would do if they could save the time wasted.We also looked into the estimated budget put into development tools,per developer.Developer Tool BudgetDevelopers spend money every single year one way or the other.Some companies will give thei

78、r developers a say over what tools they use,while others set standards that are passed on to all the developers in the company.You can see how that disparity plays out from our survey with nearly 45%of the users having some level of a budget,and the rest either dont know or dont have a budget to wor

79、k with.What Is Your Estimated Development Tool Budget Per Developer,Per Year?JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report24Redeploy TimesEarlier in the report,we shared

80、 the redeploy times for teams using microservice-based applications.For this question,we asked respondents to share the average redeploy time for their Java application.Unlike last years report in which respondents reported redeployment times between 23 minutes as the most common,this years results

81、showed 10+minutes as the most common coming in at 27%in 2023 vs.21%in 2022.Teams who experienced under four minutes per redeploy represented 42%of all responses,while those who indicated over three minutes accounted for 59%.When comparing redeploy times across organizations of different sizes,we fou

82、nd that 67%of smaller organizations(100 employees)reported redeploy times of under five minutes,compared to 53%of larger organizations(100+employees).Java developers continue to see large redeploy times throughout their applications.While we expect this pattern to continue,we believe that tools like

83、 JRebel will help address these pain points to improve Java developer productivity.Companies With Under 100 EmployeesCompanies With Over 100 EmployeesAfter a Code Change in Your Application,How Long Does It Take to Compile,Package,and Redeploy Your Application to a Visibly-Changed State at Runtime?J

84、Rebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report25Biggest ObstaclesEvery Java developer deals with issues that make their ability to efficiently perform their tasks more dif

85、ficult.In this question,we dove into what those major obstacles are.Java developers clearly feel that there are too many tasks put on their plate,which appears to be impacting their overall productivity.This makes a lot of sense and is also very telling for team leads on whats impacting the overall

86、coding experience.What Is the Biggest Obstacle Your Team Faces to Increasing Productivity?JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report26What Teams Would Do Without Rede

87、ploysAs in previous years surveys,we wrapped up our survey by asking respondents what they would do if they could save 10%of their development time each workday.While most people pointed to practical uses,like adding new features(27%)or improving their development process(19%),were inclined to point

88、 out some of the“Other”responses.In all fairness,taking regular breaks and maintaining a healthy work-life balance are also important contributors to overall productivity.Highlights included:Coffee break Eat lunch Leave early Watch cats on the internet If Your Team Could Save 10%More Time During the

89、 Workday,What Would They Do With That Extra Time?JRebel by Perforce Perforce Software,Inc.All trademarks and registered trademarks are the property of their respective owners.(0320TKP23)2023 Java Developer Productivity Report27Closing Thoughts In the 11 years that JRebel has produced the Java Develo

90、per Productivity Report,there has been a constant influx of new innovations,technologies,and trends.Its also expected that with the steady march of innovation comes both new and familiar challenges.Redeploys remain a constant dilemma that many developers face on a regular basis.Eliminating those red

91、eploys will continue to be an area of focus we hope to meet the need of in 2023 and beyond.With the continued overall growth in the Java community,we look forward to monitoring these results and more.A special thanks to all the developers,team leads,and management that took the time to fill out our

92、survey and help make this report a success.We hope you enjoyed reading the report as much as we enjoyed making it.If you have any feedback,please feel free to reach out directly to JRebels product manager,Curtis.About JRebelJRebel is a Java developer productivity tool that allows developers to skip redeploys while maintaining application state.With over 3000 customers around the world,JRebel is trusted by leading brands to improve their Java development productivity.Interested in seeing how JRebel works on your projects?Try it free for 14 days with no