java.lang.NullPointerException
at org.jdk8.backport.ConcurrentHashMap8.putIfAbsent(ConcurrentHashMap8.java:2739)
at org.apache.ignite.internal.MarshallerContextAdapter.getClass(MarshallerContextAdapter.java:105)
at org.apache.ignite.marshaller.optimized.OptimizedMarshallerUtils.classDescriptor(OptimizedMarshallerUtils.java:246)
at org.apache.ignite.marshaller.optimized.OptimizedObjectInputStream.readObjectOverride(OptimizedObjectInputStream.java:248)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:365)
at org.apache.ignite.marshaller.optimized.OptimizedMarshaller.unmarshal(OptimizedMarshaller.java:230)
at org.apache.ignite.internal.processors.datastreamer.DataStreamProcessor.processRequest(DataStreamProcessor.java:231)
at org.apache.ignite.internal.processors.datastreamer.DataStreamProcessor.access$000(DataStreamProcessor.java:43)
at org.apache.ignite.internal.processors.datastreamer.DataStreamProcessor$1.onMessage(DataStreamProcessor.java:69)
at org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:664)
at org.apache.ignite.internal.managers.communication.GridIoManager.access$1500(GridIoManager.java:57)
at org.apache.ignite.internal.managers.communication.GridIoManager$5.run(GridIoManager.java:627)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Blocker