Re: Data loss - window closable while save in progress

Posted by Wayne Rasband on Jun 25, 2009; 3:13pm
URL: http://imagej.273.s1.nabble.com/Data-loss-window-closable-while-save-in-progress-tp3692008p3692009.html

This bug is fixed in the 1.43c daily build.

-wayne

On Jun 25, 2009, at 3:38 AM, Doube, Michael wrote:

> Hi all,
>
> I've struck a rather nasty (dangerous!) bug where it is possible to
> close an image while a save is in progress, resulting in loss of all
> image data.
>
> For example, I have a 1GB stack and I hit [s] to save it.  While the
> write is in progress I hit [w] to close the window.  The window
> closes, IJ throws an exception and all the stack's data is gone.  The
> expected behaviour is for IJ to wait until it is finished saving, then
> to close the image.
>
> The exception is this:
>
> java.lang.NullPointerException
> at java.io.FileOutputStream.writeBytes(Native Method)
> at java.io.FileOutputStream.write(Unknown Source)
> at java.io.BufferedOutputStream.write(Unknown Source)
> at java.io.DataOutputStream.write(Unknown Source)
> at ij.io.ImageWriter.write8BitImage(ImageWriter.java:28)
> at ij.io.ImageWriter.write8BitStack(ImageWriter.java:38)
> at ij.io.ImageWriter.write(ImageWriter.java:214)
> at ij.io.TiffEncoder.write(TiffEncoder.java:118)
> at ij.io.TiffEncoder.write(TiffEncoder.java:138)
> at ij.io.FileSaver.saveAsTiffStack(FileSaver.java:126)
> at ij.io.FileSaver.saveAsTiff(FileSaver.java:80)
> at ij.io.FileSaver.save(FileSaver.java:58)
> at ij.plugin.Commands.save(Commands.java:55)
> at ij.plugin.Commands.run(Commands.java:27)
> at ij.IJ.runPlugIn(IJ.java:148)
> at ij.Executer.runCommand(Executer.java:121)
> at ij.Executer.run(Executer.java:58)
> at java.lang.Thread.run(Unknown Source)
>
> I am using IJ 1.43b and Java 64-bit 1.6.0_12 on Vista.
>
> I hope this message prevents other people from losing their work.
>
> Mike