Eclipse Thymeleaf plugin throws exception when using Ctrl+Space

[Omcsesz]

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Hello, @ultraq !

I use the latest version of Eclipse, and I installed the plugin, but I only get an Exception when trying to use it:

The ''Thymeleaf Processor Proposal Computer'' proposal computer from the ''org.thymeleaf.extras.eclipse.contentassist'' plug-in did not complete normally. Unable to instantiate the extension.

I attach the stack error: StackTrace.txt

Can you please support?

[dziurs]

the same error. New eclipse starts with Java 17. STS 4.15 is working fine, but Thymeleaf plugin doesnt. If you start eclipse with Java 11, Thymeleaf plugin will work ok, but the other things dont stackTrace.txt . -Solution -> --add-opens=java.base/java.lang=ALL-UNNAMED in eclipse.ini