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Cannot inherit from final class error

What does this error mean. It works great in Eclipse, but not in intellij idea

Exception in thread "main" java.lang.VerifyError: Cannot inherit from final class at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at java.net.URLClassLoader.access$000(URLClassLoader.java:58) at java.net.URLClassLoader$1.run(URLClassLoader.java:197) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at com.couchbase.client.ViewConnection.createConnections(ViewConnection.java:120) at com.couchbase.client.ViewConnection.<init>(ViewConnection.java:100) at com.couchbase.client.CouchbaseConnectionFactory.createViewConnection(CouchbaseConnectionFactory.java:179) at com.couchbase.client.CouchbaseClient.<init>(CouchbaseClient.java:243) at com.couchbase.client.CouchbaseClient.<init>(CouchbaseClient.java:175) at com.couchbase.App.putincbase(App.java:122) at examplesCons.TestCons.run(TestCons.java:89) at examplesCons.TestCons.main(TestCons.java:121) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)

I get this error when I try to run couchbase using couchbase-client-1.1.6.jar from Intellij IDea.

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4 answers

if you use kotlin add open to your class (extends RealmObject declaration)

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A message means what he is saying.

Somewhere you managed to create a class that extends the superclass, where the superclass was declared final .

The most likely reason is that you have a conflict between your classpath and your startup class path. In other words, you compile your subclass against a version of the superclass that is not final , and then works with the final version. The verifier says (correctly) that it is wrong.

If this is not your assembly / one of your classes that causes this, then this is an internal conflict within the CouchDB client classes you use. Indeed, the fact that this is a VerifyError and not an IncompatibleClassChangeError suggests that this may be a problem with some dynamically generated bytecodes.

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I also came across this with IntelliJ Idea: 2018.3 Community Edition, however, running the following fixed this for me:

 mvn -U idea:idea clean compile install -DskipTests
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If you are sure that you did not extend the final lesson by accident, try cleaning the project. This solved the problem for me.

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Source: https://habr.com/ru/post/1496064/

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