java.lang.IllegalStateException: Can't load io.netty.util.internal.IntegerHolder. Instance class loader is already closed. at org.apache.cassandra.distributed.shared.InstanceClassLoader.loadClassInternal(InstanceClassLoader.java:118) at org.apache.cassandra.distributed.shared.InstanceClassLoader.loadClass(InstanceClassLoader.java:112) at java.base/java.lang.Class.getDeclaredFields0(Native Method) at java.base/java.lang.Class.privateGetDeclaredFields(Class.java:3061) at java.base/java.lang.Class.getDeclaredFields(Class.java:2248) at org.apache.cassandra.utils.concurrent.Ref.getFields(Ref.java:653) at org.apache.cassandra.utils.concurrent.Ref$Visitor.traverse(Ref.java:616) at org.apache.cassandra.utils.concurrent.Ref$Visitor.run(Ref.java:571) at org.apache.cassandra.concurrent.ExecutionFailure$1.run(ExecutionFailure.java:133) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.base/java.lang.Thread.run(Thread.java:829) java.lang.IllegalStateException: Can't load io.netty.util.internal.IntegerHolder. Instance class loader is already closed. at org.apache.cassandra.distributed.shared.InstanceClassLoader.loadClassInternal(InstanceClassLoader.java:118) at org.apache.cassandra.distributed.shared.InstanceClassLoader.loadClass(InstanceClassLoader.java:112) at java.base/java.lang.Class.getDeclaredFields0(Native Method) at java.base/java.lang.Class.privateGetDeclaredFields(Class.java:3061) at java.base/java.lang.Class.getDeclaredFields(Class.java:2248) at org.apache.cassandra.utils.concurrent.Ref.getFields(Ref.java:653) at org.apache.cassandra.utils.concurrent.Ref$Visitor.traverse(Ref.java:616) at org.apache.cassandra.utils.concurrent.Ref$Visitor.run(Ref.java:571) at org.apache.cassandra.concurrent.ExecutionFailure$1.run(ExecutionFailure.java:133) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.base/java.lang.Thread.run(Thread.java:829)