NFS mover accepts (and fails) to process non pNFS operations.

[kofemann]

The pool should return a NOTSUPP error when a non-pNFS request is sent. Instead, it tries to process it and fails.

	at org.dcache.nfs.vfs.PseudoFs.getRootInode(PseudoFs.java:198)
	at org.dcache.nfs.v4.OperationPUTROOTFH.process(OperationPUTROOTFH.java:45)
	at org.dcache.nfs.v4.AbstractOperationExecutor.execute(AbstractOperationExecutor.java:58)
	at org.dcache.chimera.nfsv41.common.StatsDecoratedOperationExecutor.execute(StatsDecoratedOperationExecutor.java:56)
	at org.dcache.nfs.v4.NFSServerV41.NFSPROC4_COMPOUND_4(NFSServerV41.java:198)
	at org.dcache.nfs.v4.xdr.nfs4_prot_NFS4_PROGRAM_ServerStub.dispatchOncRpcCall(nfs4_prot_NFS4_PROGRAM_ServerStub.java:48)
	at org.dcache.oncrpc4j.rpc.RpcDispatcher$1.run(RpcDispatcher.java:122)
	at com.google.common.util.concurrent.DirectExecutorService.execute(DirectExecutorService.java:52)
	at org.dcache.oncrpc4j.rpc.RpcDispatcher.handleRead(RpcDispatcher.java:100)
	at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:88)
	at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:246)
	at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:178)
	at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:118)
	at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:96)
	at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:51)
	at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:510)
	at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:82)
	at org.glassfish.grizzly.strategies.SameThreadIOStrategy.executeIoEvent(SameThreadIOStrategy.java:69)
	at org.glassfish.grizzly.strategies.AbstractIOStrategy.executeIoEvent(AbstractIOStrategy.java:66)
	at org.glassfish.grizzly.nio.SelectorRunner.iterateKeyEvents(SelectorRunner.java:381)
	at org.glassfish.grizzly.nio.SelectorRunner.iterateKeys(SelectorRunner.java:353)
	at org.glassfish.grizzly.nio.SelectorRunner.doSelect(SelectorRunner.java:319)
	at org.glassfish.grizzly.nio.SelectorRunner.run(SelectorRunner.java:248)
	at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:535)
	at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:515)
	at java.base/java.lang.Thread.run(Thread.java:840)