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From "Brandon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DAEMON-394) Monitor application will update multi-string values in Windows registry with blank lines
Date Fri, 02 Nov 2018 20:22:00 GMT

    [ https://issues.apache.org/jira/browse/DAEMON-394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16673627#comment-16673627
] 

Brandon commented on DAEMON-394:
--------------------------------

For reference, I initially made the mistake of submitting a [Bugzilla bug|https://bz.apache.org/bugzilla/show_bug.cgi?id=62873]
against the Apache Tomcat project.  An admin from that project pointed me here.

> Monitor application will update multi-string values in Windows registry with blank lines
> ----------------------------------------------------------------------------------------
>
>                 Key: DAEMON-394
>                 URL: https://issues.apache.org/jira/browse/DAEMON-394
>             Project: Commons Daemon
>          Issue Type: Bug
>          Components: Procrun
>    Affects Versions: 1.1.0
>         Environment: OS: Windows 7 Pro, Service Pack 1
>            Reporter: Brandon
>            Priority: Major
>              Labels: windows
>
> The Procrun Monitor application does not prevent a user from accidentally inserting blank
lines into the Java Options or Java 9 Options text areas. If a blank line is introduced into
either text area and the changes are applied (by hitting the Apply or OK button), the changes
are committed to the associating multi-string value in the Windows registry.
> If a user were to relaunch the Monitor application and view the Java or Java 9 Options
again, they would see that the content has been truncated. Individual options above the blank
line remain; any below are not present. If the Windows Registry editor were used to view the
associating multi-string value, the user would see all of the content including the blank
line.
> Changing the options again from within the Monitor application will succeed but when
the options are committed to the registry multi-string value, any options that existed below
the blank line will be removed.
> Note that the Windows registry editor will display an error dialog if a user attempts
to save a multi-string value with an empty line present. The message is: "Data of type REG_MULTI_SZ
cannot contain empty strings. Registry Editor will remove all empty strings found."
> Steps to Reproduce:
> # Download latest Commons Daemon distribution for windows (1.1.0).
> # Run prunsrv.exe to install a test service (TestService).
> # Run prunmgr.exe //ES/TestService to start the monitor application to edit the same
TestService.
> # Switch to the Java tab and edit either the Java Options or Java 9 Options. Insert a
bunch of options and then Insert a blank line somewhere in-between those options. Click OK
> # Run prunmgr again. Look at the Java Options or Java 9 Options where the blank line
was inserted. Notice that all options below the blank line are not visible.
> # Open up the registry editor and navigate to the multi-string value associated with
the Java Options text area: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Apache Software Foundation\Procrun
2.0\TestService\Parameters\Java
> # Notice that all content is present (including the blank line) in the registry value.



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