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Date: Sun, 14 Jun 2009 12:55:07 -0700 (PDT)
From: "Filippo Diotalevi (JIRA)" <jira@apache.org>
To: dev@felix.apache.org
Subject: [jira] Updated: (FELIX-1238) NPE when invoking "scr list" with no
 components registered
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     [ https://issues.apache.org/jira/browse/FELIX-1238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Filippo Diotalevi updated FELIX-1238:
-------------------------------------

    Attachment: FELIX-1238.txt

The attached patch adds 2 returns statement in the method
ScrCommand#private void list( StringTokenizer st, PrintStream out, PrintStream err )
in case there are no components to display

> NPE when invoking "scr list" with no components registered
> ----------------------------------------------------------
>
>                 Key: FELIX-1238
>                 URL: https://issues.apache.org/jira/browse/FELIX-1238
>             Project: Felix
>          Issue Type: Bug
>          Components: Declarative Services (SCR)
>    Affects Versions: scr-1.0.8
>            Reporter: Filippo Diotalevi
>            Priority: Minor
>             Fix For: scr-1.0.10
>
>         Attachments: FELIX-1238.txt
>
>
> The bug can be reproduced with a minimal Felix+SCR container like:
> [   0] [Active     ] [    0] System Bundle (1.8.0)
> [   1] [Active     ] [    1] Apache Felix Shell Service (1.2.0)
> [   2] [Active     ] [    1] Apache Felix Shell TUI (1.2.0)
> [   3] [Active     ] [    1] Apache Felix Bundle Repository (1.4.0)
> [   7] [Active     ] [    1] Apache Felix Declarative Services (1.0.9.SNAPSHOT)
> In these condition, typing "scr list" in the shell causes a NPE:
> -> scr list
> No components registered
>    Id   State          Name
> Unable to execute command: java.lang.NullPointerException
> java.lang.NullPointerException
> 	at org.apache.felix.scr.impl.ScrCommand.list(ScrCommand.java:161)
> 	at org.apache.felix.scr.impl.ScrCommand.execute(ScrCommand.java:102)
> 	at org.apache.felix.shell.impl.Activator$ShellServiceImpl.executeCommand(Activator.java:291)
> 	at org.apache.felix.shell.tui.Activator$ShellTuiRunnable.run(Activator.java:177)
> 	at java.lang.Thread.run(Thread.java:637)
> The same happens trying to list components of a non-DS bundle
> -> svn list 3
> Bundle 3 declares no components
>    Id   State          Name
> Unable to execute command: java.lang.NullPointerException
> java.lang.NullPointerException
> 	at org.apache.felix.scr.impl.ScrCommand.list(ScrCommand.java:161)
> 	at org.apache.felix.scr.impl.ScrCommand.execute(ScrCommand.java:102)
> 	at org.apache.felix.shell.impl.Activator$ShellServiceImpl.executeCommand(Activator.java:291)
> 	at org.apache.felix.shell.tui.Activator$ShellTuiRunnable.run(Activator.java:177)
> 	at java.lang.Thread.run(Thread.java:637)

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