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java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.Void	at $sess.cmd9$$anon$1.onResponse(cmd9.sc:1)	at com.hazelcast.util.executor.DelegatingFuture$DelegatingExecutionCallback.onResponse(DelegatingFuture.java:172)	at com.hazelcast.spi.impl.AbstractInvocationFuture$1.run(AbstractInvocationFuture.java:251)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)	at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:76)	at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:92)