[jboss-jira] [JBoss JIRA] (WFCORE-3904) NPE at TAB completion

[Jean-Francois Denise (JIRA)]

    [ https://issues.jboss.org/browse/WFCORE-3904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13587346#comment-13587346 ] 

Jean-Francois Denise commented on WFCORE-3904:
----------------------------------------------

Even by handling the NPE at the CLI level, we then run into AESH-471 in this case.

> NPE at TAB completion
> ---------------------
>
>                 Key: WFCORE-3904
>                 URL: https://issues.jboss.org/browse/WFCORE-3904
>             Project: WildFly Core
>          Issue Type: Bug
>          Components: CLI
>    Affects Versions: 5.0.0.Final
>            Reporter: Erich Duda
>            Assignee: Jean-Francois Denise
>            Priority: Blocker
>              Labels: blocker-WF14
>
> When you write some command into the CLI prompt (without enter), move cursor to beginning of line and hit TAB, the CLI crashes on {{NullPointerException}}.
> {code}
> [standalone at 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)
> {code}



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