#Oracle jdk vs openjdk for free
#Oracle jdk vs openjdk upgrade
#Oracle jdk vs openjdk code

The constructor can be extended with some field validation. It is allowed, however, but you should not do this. grape1.nbrOfPits() in order to do some processing and returning a different value than the initial nbrOfPits is a bad practice. It is important to notice that copies of records should end up in identical copies. ('Grape 1 equals its copy? ' + grape1.equals(grape1Copy)) GrapeRecord grape1Copy = new GrapeRecord(lor(), grape1.nbrOfPits()) ('Grape 1 equals grape 2? ' + grape1.equals(grape2)) GrapeRecord grape2 = new GrapeRecord(Color.WHITE, 2) GrapeRecord grape1 = new GrapeRecord(Color.BLUE, 1) Record GrapeRecord(Color color, int nbrOfPits)

Copy-paste of JSON is labour intensive (probable your IDE will help you with that issue).

String concatenation in order to make it more or less readable.

#Oracle jdk vs openjdk code

Assume that you need some JSON string into your code and you need to print it. Text Blocks definitely make code more readable.

Text BlocksĪ lot of improvements have been made in order to make Java more readable and less verbose. Last thing for this introduction is that Oracle released dev.java, so do not forget to check this out. All sources used in this post are available at GitHub. In the next sections, some of the changes are explained by example, but it is mainly up to you to experiment with these new features in order to get acquainted with them. For a complete list of what has changed per release since Java 11, the Oracle release notes give a good overview. Here you can read the nitty gritty details of each JEP. What has changed between Java 11 and Java 17? A complete list of the JEP’s (Java Enhancement Proposals) can be found at the OpenJDK website. It will be interesting to see how this will influence upgrading to next LTS versions. You should note that the support for the LTS version will end one year after the next LTS version is released. In the same Snyk survey, it was noted that the Oracle JDK version was only used by 23% of the users in a production environment.

#Oracle jdk vs openjdk for free

It is therefore again allowed to use the Oracle JDK version for free for production and commercial use. Java 17 is issued under the new NFTC (Oracle No-Fee Terms and Conditions) license. The Oracle licensing model has changed with the introduction of Java 17. A nice overview whether libraries have issues or not with Java 17, can be found here. Another interesting thing to notice is that the next LTS release will be Java 21 which will be released in 2 years. A recent survey of Snyk showed that only 60% is using Java 11 in production and this is 3 years after Java 11 was released! Java 8 is also still being used by 60% of the companies. But even then, some companies are reluctant for upgrading. Most of the time, for production-use, companies will wait for the LTS releases. This can cause some issues when some of your dependencies are not yet ready for Java 13.

#Oracle jdk vs openjdk upgrade

You are more or less obliged to upgrade to Java 13 when you want to keep support. the support of Java 12 ends when Java 13 is released. The only difference with an LTS release is that the support ends when the next version is released. These are, however, production-ready releases. Every 6 months a new Java version is released, the so-called non-LTS releases Java 12 up to and including Java 16. Also, with Java 11, the Oracle JDK was not free anymore for production and commercial use. Java 11 came with support up to September 2023 and with an extended support up to September 2026. With Java 11 a new release cadence started. Java 17 is an LTS (Long Term Support) version just like Java 11. Introductionįirst, let’s take a close look at the Java licensing and support model. A short introduction is given about the licensing model and after that, some of the changes between Java 11 and Java 17 are highlighted, mainly by means of examples. Time to take a closer look at the changes since the last LTS release, which is Java 11. The 14th of September Java 17 was released.