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OpenJDK VS Java

Compare OpenJDK VS Java and see what are their differences

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Contents:
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  2. » Videos
  3. » Reviews
  4. » Alternatives

OpenJDK logo OpenJDK

OpenJDK is the free version of the Java development platform.

Java logo Java

A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
  • OpenJDK Landing page
    Landing page //
    2021-10-14
  • Java Landing page
    Landing page //
    2018-09-30

We recommend LibHunt Java for discovery and comparisons of trending Java projects.

OpenJDK features and specs

  • Open Source
    OpenJDK is an open-source implementation of the Java Platform, Standard Edition, making it freely available for anyone to download, modify, and distribute.
  • Wide Adoption and Community Support
    It is the reference implementation of Java SE, backed by a large community and supported by major companies like Oracle, ensuring regular updates and security patches.
  • Compatibility
    OpenJDK is considered the official reference implementation for Java SE and is compatible with the Java standard, ensuring that applications run consistently across implementations.
  • No Licensing Fees
    Being open-source, OpenJDK does not require licensing fees, which can be beneficial for organizations looking to minimize costs.
  • Customizability
    The open-source nature allows developers to modify and extend the code to suit specific needs.

Possible disadvantages of OpenJDK

  • Potential Performance Variations
    Different builds of OpenJDK may have performance variations compared to the Oracle JDK, which can affect application efficiency.
  • Support Variability
    While community support is strong, official support and services, which might be required by enterprise environments, are often provided by third parties and may come with additional costs.
  • Patch Availability
    Security patches and updates may not be rolled out as quickly in some OpenJDK distributions compared to Oracle's commercial JDK.
  • Limited Features
    Some commercial features in Oracle JDK, such as advanced monitoring and commercial-grade performance monitoring tools, may not be present in OpenJDK.

Java features and specs

  • Platform Independence
    Java is known for its portability across multiple platforms via the Java Virtual Machine (JVM). This means you can write code once and run it anywhere.
  • Large Standard Library
    Java boasts a comprehensive standard library, which facilitates development by providing pre-built solutions for a wide array of programming tasks.
  • Robust and Secure
    Java emphasizes strong memory management and has built-in security features, making it a reliable choice for applications requiring high levels of security.
  • Community Support
    With a vast and active community, ample resources are available for learning and troubleshooting. Numerous libraries and frameworks are available due to its long-standing presence.
  • Performance
    Modern Java versions offer performance that is generally very good for many applications, particularly server-side applications where the Just-In-Time (JIT) compiler can significantly optimize runtime performance.

Possible disadvantages of Java

  • Verbosity
    Java's syntax can be verbose compared to newer languages, requiring more lines of code to accomplish the same tasks, which may reduce readability.
  • Memory Consumption
    Java applications can be memory-intensive due to their reliance on the JVM, which can be a downside for resource-constrained environments.
  • Performance Overhead
    Despite its generally good performance, Java's reliance on the JVM introduces some overhead compared to languages that compile to native machine code, such as C++.
  • No Low-Level Programming
    Java abstracts away from the hardware, making it less suitable for low-level programming tasks that require direct hardware manipulation, such as embedded systems programming.
  • Slow Startup Time
    Java applications can have slower startup times due to the overhead of JVM initialization, which can be a drawback for desktop applications or command-line tools that are frequently started and stopped.

OpenJDK videos

+ Add

OpenJDK Development

More videos:

  • Review - The Launch Space - The Microsoft Build of OpenJDK and other useful Java things

Java videos

+ Add

AP Computer Science in 10 Minutes (Java review)

More videos:

  • Review - Java AP CS Exam Review
  • Review - Top Five Basic Programming Concepts of Object-Oriented Java - Six Minute Refresher!

Category Popularity

0-100% (relative to OpenJDK and Java)

OpenJDK

Java

IDE
100 100%
IDE
0% 0
Programming Language
0 0%
Programming Language
100% 100
Text Editors
100 100%
Text Editors
0% 0
OOP
0 0%
OOP
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare OpenJDK and Java

OpenJDK Reviews

We have no reviews of OpenJDK yet.
Be the first one to post

Java Reviews

The 10 Best Programming Languages to Learn Today
If you want to build your career in IoT or big data, Java is arguably the best programming language to learn. Java is cross-platform compatible and offers portability and versatility to almost any type of device, making it ideal for IoT applications. The Apache Hadoop big data processing system is also written in Java.
Source: ict.gov.ge
Alternatives to Nmap: from simple to advanced network scanning
This tool can provide favorite IP address ranges, NetBIOS information and web server detection. More features can be added by installing Java plugins.
Source: www.networkworld.com

Social recommendations and mentions

Based on our record, OpenJDK should be more popular than Java. It has been mentiond 32 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

OpenJDK mentions (32)

  • Oracle's Pioneering Role in Open Source and Blockchain: A Deep Dive
    Oracle’s seamless integration of open-source contributions and blockchain adoption is a testament to its forward-thinking approach and commitment to technological innovation. By supporting key projects like Java via the OpenJDK project and ensuring the robustness of its cloud solutions through the Oracle Cloud Infrastructure, Oracle demonstrates that true innovation is born from a culture of collaboration and... - Source: dev.to / 2 months ago
  • Setting Up Your React Native Development Environment
    Visit the Oracle JDK download page or use OpenJDK. - Source: dev.to / 7 months ago
  • Lisp Virtual Machine Design Question
    Reloading is nothing new under the sun for Lisp, I believe. For ML and adequate reload-ability, one might be hard pressed, but it's nothing new under the Sun (hint, hint). Maybe too on the nose, but one probably wants good inlining, and thus more "speculative" de/optimisation to preserve redefinition. Source: over 2 years ago
  • "Why Apache Harmony" or "How to use Java 8 on Android"
    If they don't want Oracle's Java, why can't they use a subset of OpenJDK (licensing noob here)? Source: almost 3 years ago
  • Replacement for Java?
    Does this change affect https://openjdk.java.net/ too? Source: almost 3 years ago
View more

Java mentions (7)

  • Can someone help with port forwarding?
    You can use UPnP PortMapper. Source code/Download. All you need is Java and that's it. Hope this helps. Source: about 3 years ago
  • PolyGlot 3.5 Release
    I would definitely suggest installing Java for this one, and the error should have asked you to do so. I'll have to look into why that was not popping properly for you and address it in a bug fix. In the mean time, you can address the issue by going here to install Java: https://java.com/en/. Source: over 3 years ago
  • i need help pls
    Https://java.com/en/ Is this the java you're using to install optifine. When I first got optifine I thought java meant Minecraft and not java. Source: over 3 years ago
  • I keep getting this error when I try to install Worldpainter
    I had this problem before just go to https://java.com/en/ and download the java then you will have to install the actual java, then after its installed go to This PC then Windows then Program Files then Java then go to the file name file name that show I think when you downloaded it then go into bin and you will find a java.exe file then click it and World Painter will install and that's who I solved king problem... Source: almost 4 years ago
  • What to do immediately with a brand new build?
    Java, Adobe Reader, Handbrake (great for converting and adjusting videos). Source: almost 4 years ago
View more

What are some alternatives?

When comparing OpenJDK and Java, you can also consider the following products

AdoptOpenJDK - The code for Java is open source and available at OpenJDK™.

Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.

Liberica JDK - Liberica is a 100% open-source Java 13.0.1 implementation.

JavaScript - Lightweight, interpreted, object-oriented language with first-class functions

Zulu - Zulu is a professional DJ mixing software to mix and broadcast live music, audio and mp3s.

Rust - A safe, concurrent, practical language

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