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TestNG : Exception in thread "main" java.lang.NoSuchMethodError:

at org.testng.remote.AbstractRemoteTestNG.setHost (AbstractRemoteTestNG.java:59) at org.testng.remote.RemoteTestNG.initAndRun (RemoteTestNG.java:137) at org.testng.remote.RemoteTestNG.main ...
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Vaadin throws runtime exception for Java 21 preview features

When a Java 21 preview feature is used in a Vaadin page or component, the code compiler successfully but fails at runtime with an exception. Exception thrown by Quarkus application using Vaadin: ...