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https://issues.apache.org/jira/browse/NETBEANS-5491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michal Rama updated NETBEANS-5491:
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Fix Version/s: 12.4
> UnsupportedClassVersionError - If I set the NetBeans Runtime to Java 16, I
> cannot run a project created in Java 15.
> -------------------------------------------------------------------------------------------------------------------
>
> Key: NETBEANS-5491
> URL: https://issues.apache.org/jira/browse/NETBEANS-5491
> Project: NetBeans
> Issue Type: Bug
> Components: java - Platform, java - Project, java - Source
> Affects Versions: 12.3
> Environment: Windows 10, Apache NetBeans 12.3, Java 16
> Reporter: Michal Rama
> Assignee: Svatopluk Dedic
> Priority: Blocker
> Labels: java, platform, project, runtime, version
> Fix For: 12.4
>
> Attachments: obr�zek02.png, obr�zek41.png
>
>
> Hello,
> I installed Java 16 and set it in the etc\netbeans.conf file
> *netbeans_jdkhome="C:\Program Files\Java\jdk-16"*
> However, upon startup, all projects reported an error. NetBeans automatically
> set the *Java Platform* to *JDK 16* for them, but the *Source / Binary
> Format* was still *JDK 15*.
> !obr�zek41.png!
> !obr�zek02.png!
> So it was enough to change it to JDK 16, except for one project that still
> can't be run and I didn't figure out why.
> To run this project I need to close NetBeans and run it again in Java 15.
> Creating a new project in Java 16 would probably solve the problem, but why
> should I do it when there was no problem with all the other projects.
> Please help.
> Thank you
> PS.
> {code:java}
> run:
> Error: LinkageError occurred while loading main class example.TextHeight
> java.lang.UnsupportedClassVersionError: example/TextHeight (class file
> version 59.65535) was compiled with preview features that are unsupported.
> This version of the Java Runtime only recognizes preview features for class
> file version 60.65535
> C:\Users\NAME_OF_USER\AppData\Local\NetBeans\Cache\12.3\executor-snippets\run.xml:111:
> The following error occurred while executing this line:
> C:\Users\NAME_OF_USER\AppData\Local\NetBeans\Cache\12.3\executor-snippets\run.xml:68:
> Java returned: 1
> BUILD FAILED (total time: 1 second)
> {code}
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