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Mar 19, 2014 · Steps: In Eclipse, right click on the project name in project explorer → Build path → Libraries → click on JRE version → click Edit → Installed JRE → Add → Standerd VM → select JRE home click-path (path should be localePath\java\jdk1.8.0_25\jre) → provide name → Save → select same JRE for project → Finish → OK.
Feb 2, 2024 · Right-click on the project name in Eclipse and go to Properties.. Go to Java Build Path then Libraries.. Remove the previous JRE System Library.Select the JRE System Library and click Remove.
- Introduction
- A Look at The Error
- Fix Via The Command Line
- Eclipse IDE
- Maven
- Conclusion
In this short tutorial, we’re going to learn what causes the Java runtime error java.lang.UnsupportedClassVersionError: Unsupported major.minor versionand how to fix it.
Let’s start by looking at an example error: This error is telling us that our class was compiled at a higher version of Java than the version with which we tried to run it.More specifically, in this case we compiled our class with Java 11 and tried to run it with Java 8.
Now let’s discuss how we can resolve this error when running Java from the command line. Depending on our situation, we have two ways we can resolve this error: compile our code for an earlier version of Java, or run our code on a newer Java version. The final decision depends on our situation. If we need to use a third-party library that’s already...
Now that we understand the error and the general approach to correcting it, let’s take what we’ve learned and see how we can apply it when working in the Eclipse IDE.
When we build and package a file in Maven, we can control the version of Javawe target. When using Java 8 or older, we set the source and target for the compiler plugin. Let’s set the source and target using compiler plugin properties: Alternatively, we can set the source and target in the compiler plugin: With the –releaseoption added in Java 9, w...
In this article, we learned what causes the java.lang.UnsupportedClassVersionError: Unsupported major.minor versionerror message, and how to fix it.
- Amy Degregorio
Feb 22, 2022 · Java is backwards compatible, which means a Java class file or binary (JAR file) compiled on a lower version of Java can be executed on a higher version. However, the opposite of this is untrue, i.e. a class compiled on a higher version of Java cannot be executed on a lower version. This is because the higher version usually contains features ...
Jan 28, 2021 · Get the installed java version : java –version (In command prompt (windows), we can give) Check java version. Fixing the program via command line : In order to overcome the UnsupportedClassVersionError, we can either compile our code for an earlier version of Java or run our code on a newer Java version. It is about our choice of decision only.
Using a newer Java version. Updating the JRE on the computer running the code is the easiest way to solve the issue. The directory where the Java installation is now located and its version number may be found by running the commands echo %JAVA_HOME% and java -version within a terminal. Identifying the version that is being used when several ...
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Ensure both are pointing to Java 8. 2. Update your JAVA_HOME Environment Variable: Make sure that your JAVA_HOME environment variable is set to the correct path of your Java 8 installation. On Windows, you can set it like this:
