[standalone@localhost:9990  /] /system-property=x:read-resource
read-resource  read-resource-description                                       Exception in thread "CLI Terminal Connection (uninterruptable)" java.lang.NullPointerException
	at org.jboss.as.cli.impl.aesh.cmd.operation.OperationCommandContainer.isOperation(OperationCommandContainer.java:53)
	at org.jboss.as.cli.impl.aesh.CLICommandRegistry.getCommand(CLICommandRegistry.java:258)
	at org.jboss.as.cli.impl.aesh.CLICommandRegistry.isLegacyCommand(CLICommandRegistry.java:343)
	at org.jboss.as.cli.impl.aesh.CLICompletionHandler.complete(CLICompletionHandler.java:134)
	at org.jboss.as.cli.impl.CLICommandCompleter.doComplete(CLICommandCompleter.java:132)
	at org.jboss.as.cli.impl.CLICommandCompleter.complete(CLICommandCompleter.java:54)
	at org.jboss.as.cli.impl.aesh.CLICompletionHandler.complete(CLICompletionHandler.java:69)
	at org.jboss.as.cli.impl.aesh.CLICompletionHandler.complete(CLICompletionHandler.java:45)
	at org.aesh.readline.completion.CompletionHandler.createCompletionList(CompletionHandler.java:134)
	at org.aesh.readline.completion.CompletionHandler.complete(CompletionHandler.java:102)
	at org.aesh.readline.action.mappings.Complete.accept(Complete.java:62)
	at org.aesh.readline.Readline$AeshInputProcessor.parse(Readline.java:245)
	at org.aesh.readline.Readline$AeshInputProcessor.access$100(Readline.java:174)
	at org.aesh.readline.Readline.readInput(Readline.java:95)
	at org.aesh.readline.Readline.access$1000(Readline.java:57)
	at org.aesh.readline.Readline$AeshInputProcessor.lambda$start$1(Readline.java:333)
	at org.aesh.terminal.EventDecoder.accept(EventDecoder.java:118)
	at org.aesh.terminal.EventDecoder.accept(EventDecoder.java:31)
	at org.aesh.io.Decoder.write(Decoder.java:133)
	at org.aesh.readline.tty.terminal.TerminalConnection.openBlocking(TerminalConnection.java:212)
	at org.aesh.readline.tty.terminal.TerminalConnection.openBlocking(TerminalConnection.java:199)
	at org.jboss.as.cli.impl.ReadlineConsole$CLITerminalConnection.lambda$null$1(ReadlineConsole.java:171)
	at java.lang.Thread.run(Thread.java:748)