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I have an application and I built a JAR file using Java 11. However, it is required to upgrade to Java 17 in near future. What I want to clarify is that still a JAR built in Java 11 runs in Java 17 environment. I tried it and it worked fine without any issue? I just wanna ask from the community whether is there any possibility to face different issues during this process? Thank you.

Sankalpa Wijewickrama
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  • Does this answer your question? [Can newer versions of java run on older versions?](https://stackoverflow.com/questions/65850230/can-newer-versions-of-java-run-on-older-versions) – Jack Lam Jun 04 '23 at 06:35
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    Generally yes. However, there are things that you can do in Java 11 that may stop working in Java 17. For example dependencies on JDK internals, stuff involving `SecurityManager`, `Applet` etcetera, – Stephen C Jun 04 '23 at 06:37
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    @JackLam - That question is actually about the reverse scenario. (Though it is not clear from its title.) – Stephen C Jun 04 '23 at 06:40

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