Questions tagged [java-20]

Use this tag for questions specific to Java 20, which is version 20 of the Java platform, released on March 21, 2023. In most cases you should also specify the java tag.

18 questions
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1 answer

Why am I getting a java.lang.UnsupportedClassVersionError when trying to run my Java GUI from a jar file?

I am using VSCode to create a Java GUI (that is connected to a SQL Server Database). Everything runs when I run it using VSCode's Java Project system, however, when I try to convert it to a jar file, I get this error: Error: LinkageError occurred…
-2
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0 answers

Location is not set in JavaFx

I'm creating a JavaFX progema. But when i try to run the program its shows the location is not set error. I'm trying so many methods that showing in this platform. But the Error is not solved. So Please help me to clear this error. Thanks for…
Rashid
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-3
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1 answer

How to run a portable Jar-File in Java 20 (OpenJDK 20)

I would like to run a portable jar-file created with OpenJDK 20 (i.e. without installation). So far I have managed this with the OpenJDKJRE package for Java 14 from portableapps.com. But for the OpenJDK 20 I don't know where to get the JRE. Does…
ralle
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