After upgrading to Java 1.8.0_241, 11.0.6, and 13.0.2, and
then noticed NullPointerExceptions.

A small test case that reproduces the problem is attached.

The test works in 1.8.0_231 and 11.0.5, but fails in 1.8.0_241 with:

  Registry binding failed
  java.lang.NullPointerException
at sun.rmi.transport.tcp.TCPEndpoint.read(TCPEndpoint.java:557)
at sun.rmi.transport.LiveRef.read(LiveRef.java:292)
at sun.rmi.server.UnicastRef2.readExternal(UnicastRef2.java:78)
at java.rmi.server.RemoteObject.readObject(RemoteObject.java:455)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1170)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2232)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2123)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1624)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2341)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2265)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2123)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1624)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:464)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)
at sun.rmi.registry.RegistryImpl_Skel.dispatch(RegistryImpl_Skel.java:154)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:469)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:301)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:303)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:279)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:379)
at sun.rmi.registry.RegistryImpl_Stub.rebind(RegistryImpl_Stub.java:158)
at TCPEndpointReadBug.main(TCPEndpointReadBug.java:88)