Drag and drop not working as expected on Mac

[JonNathan]

Hello,

I'm having an issue where ImageJ does not open every selected file when I attempt to drag and drop multiple files at the same time.  In other words, when I select in the Finder, say, 6 files, and drag the selected files all at once onto the ImageJ menu bar, only 4 will actually get opened.  This worked fine until I updated ImageJ to 1.51h13.  I've noted this behavior for .tif files (haven't checked other types).

Mac OS 10.12.1
JDK 1.8.0_111
Mac Pro (late 2013), 16 GB RAM

Jon Marsh

[Rasband, Wayne (NIH/NIMH) [E]]

> On Oct 28, 2016, at 1:12 PM, JonNathan <[hidden email]> wrote:
>
> Hello,
>
> I'm having an issue where ImageJ does not open every selected file when I
> attempt to drag and drop multiple files at the same time.  In other words,
> when I select in the Finder, say, 6 files, and drag the selected files all
> at once onto the ImageJ menu bar, only 4 will actually get opened.  This
> worked fine until I updated ImageJ to 1.51h13.  I've noted this behavior for
> .tif files (haven't checked other types).
>
> Mac OS 10.12.1
> JDK 1.8.0_111
> Mac Pro (late 2013), 16 GB RAM

Hi Jon,

I am not able to reproduce this problem. Perhaps you have run into the path randomization “feature" that Apple added to macOS 10.12 (Sierra). [1] You are experiencing path randomization if the “ImageJ home” path shown in the window opened by pressing “i” (Image>Show Info) starts with “/private”. You can disable path randomization by moving ImageJ.app out of the ImageJ folder and then copying it back. If the ImageJ folder is in /Applications you will need to hold down the alt key while dragging ImageJ.app out of the ImageJ folder.

-wayne

[1] https://weblog.rogueamoeba.com/2016/06/29/sierra-and-gatekeeper-path-randomization/


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[JonNathan]

Hi Wayne,

Thanks for looking into this.  The ImageJ home path did not have the issue you mentioned, so I don't think that's the problem, unfortunately.  I tried to move the app out of the folder and back anyway, to no avail.

A few more details: When opening multiple files via drag-and-drop, it always happens that two files less than the number selected get opened successfully (e.g. if 5 are dragged and dropped at once, only 3 get opened, and if 2 are dragged and dropped at once, none get opened), and there is an error message for the files that fail to open, e.g. "File not found: /Users/jnm/Desktop/test folder/Dot_Blot.tif/Users/jnm/Desktop/test folder/gel.tif".  I also noted the same issue with a different installation (Fiji) on the same computer using ImageJ 1.51g, so whatever is happening isn't necessarily associated with 1.51h13.

I also tried using a brand new installation of ImageJ on the same machine, with the same problem.  In this case the path randomization issue was there, but the problem remained after fixing it.

Jon

[lechristophe]

Hi,

I had the same problem and posted about it on the list previously. The
first two files are not opened when doing a drag & drop from a Folder
content.

I was using Java 1.8.0_102 and downgrading to 1.8.0_101 solved the problem.
I'm suspecting the bug is in newer Java versions and that you have it in
1.8.0_111.

Christophe

Le 31 oct. 2016 7:09 PM, "JonNathan" <
[hidden email]> a écrit :

> Hi Wayne,
>
> Thanks for looking into this.  The ImageJ home path did not have the issue
> you mentioned, so I don't think that's the problem, unfortunately.  I tried
> to move the app out of the folder and back anyway, to no avail.
>
> A few more details: When opening multiple files via drag-and-drop, it
> always
> happens that two files less than the number selected get opened
> successfully
> (e.g. if 5 are dragged and dropped at once, only 3 get opened, and if 2 are
> dragged and dropped at once, none get opened), and there is an error
> message
> for the files that fail to open, e.g. "File not found:
> /Users/jnm/Desktop/test folder/Dot_Blot.tif/Users/jnm/Desktop/test
> folder/gel.tif".  I also noted the same issue with a different installation
> (Fiji) on the same computer using ImageJ 1.51g, so whatever is happening
> isn't necessarily associated with 1.51h13.
>
> I also tried using a brand new installation of ImageJ on the same machine,
> with the same problem.  In this case the path randomization issue was
> there,
> but the problem remained after fixing it.
>
> Jon
>
>
>
> --
> View this message in context: http://imagej.1557.x6.nabble.
> com/Drag-and-drop-not-working-as-expected-on-Mac-tp5017500p5017510.html
> Sent from the ImageJ mailing list archive at Nabble.com.
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

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[Rasband, Wayne (NIH/NIMH) [E]]

> On Oct 31, 2016, at 2:08 PM, JonNathan <[hidden email]> wrote:
>
> Hi Wayne,
>
> Thanks for looking into this.  The ImageJ home path did not have the issue
> you mentioned, so I don't think that's the problem, unfortunately.  I tried
> to move the app out of the folder and back anyway, to no avail.
>
> A few more details: When opening multiple files via drag-and-drop, it always
> happens that two files less than the number selected get opened successfully
> (e.g. if 5 are dragged and dropped at once, only 3 get opened, and if 2 are
> dragged and dropped at once, none get opened), and there is an error message
> for the files that fail to open, e.g. "File not found:
> /Users/jnm/Desktop/test folder/Dot_Blot.tif/Users/jnm/Desktop/test
> folder/gel.tif".  I also noted the same issue with a different installation
> (Fiji) on the same computer using ImageJ 1.51g, so whatever is happening
> isn't necessarily associated with 1.51h13.
>
> I also tried using a brand new installation of ImageJ on the same machine,
> with the same problem.  In this case the path randomization issue was there,
> but the problem remained after fixing it.

This appears to be a Java bug. It occurs with Java 1.8.0_111 but not with Java 1.8.0_101, the version of Java bundled with the OS X distribution of ImageJ available at

   https://imagej.nih.gov/ij/download.html

-wayne


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> Sent from the ImageJ mailing list archive at Nabble.com.

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[JonNathan]

Hi Christophe and Wayne -- Thank you, that was the problem!  I just put the old jre folder back and everything works as before.

Jon