![]() ![]() If you bundle a Java runtime as discussed above, the JRE is irrelevant as the new modern tooling will include only the parts necessary for your app. The JRE was just a subset of a JDK, with some of the tools removed. The JRE (Java Runtime Environment) is becoming passé as Oracle no longer expects end users in general to have a Java runtime installed on their systems. So basically there's not a JRE for java 17? If you feel the need and have the nerve, the cutting edge approach is to compile a native app using GraalVM technology from Oracle. ![]() The Java Platform Module System make it possible to strip the Java runtime down to only the parts actually used by your app. Modern Java offers the jlink & jpackage tooling to assist with bundling a Java runtime into your app. This way at compile-time you have complete control, so you can compile for Java 17 while also running on Java 17. Bundle a Java runtime within your app.Compile your app for Java 8, if your codebase does not use features from Java 9 and later.Yes, you understand the problem correctly: An app compiled for Java 17 cannot be run on a Java 8 runtime. To my understanding, this error means that my code is compiled with Java 17 but my JRE can run only Java 8 code. When I do that I get this error: : Main has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 52.0Īt 1(Native Method)Īt (ClassLoader.java:756)Īt (SecureClassLoader.java:142)Īt (URLClassLoader.java:473)Īt $100(URLClassLoader.java:74)Īt $1.run(URLClassLoader.java:369)Īt $1.run(URLClassLoader.java:363)Īt (Native Method)Īt (URLClassLoader.java:362)Īt (ClassLoader.java:418)Īt $AppClassLoader.loadClass(Launcher.java:352)Īt (ClassLoader.java:351)Īt (LauncherHelper.java:601)Įrror: A JNI error has occurred, please check your installation and try again After creating the JAR (building the artifact) I try to execute it with the JRE 1.8.0_311. I'm creating a JavaFX Application using IntelliJ and OpenJDK 17. ![]()
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