> Hi everyone,
>
> for most functions, "ImageJ --system" works. It seems that this makes
> ImageJ use the default Java installation.
>
> Unfortunately, I can't use 'Compile&Run' with it.
>
> I always get an error relating to some Java built-in class, e.g.
> /home/schmid/ImageJ/plugins/Various/Test.java:23: cannot access
> java.lang.CharSequence
> bad class file: /usr/lib/jvm/java-8-openjdk-am
> d64/jre/lib/rt.jar(java/lang/CharSequence.class)
> bad constant pool tag: 18 at 10
>
> and a lot of warnings like:
> warning: /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/rt.jar(java/lang/Object.class):
> major version 52 is newer than 51, the highest major version supported by
> this compiler.
> It is recommended that the compiler be upgraded.
>
> So, obviously there is a mismatch between the Java Compiler that comes
> with ImageJ and the Java of the system. The compiler works only if ImageJ
> uses the Java installed with ImageJ.
> ---
>
> It works if I start ImageJ using the following shell script instead of the
> normal ImageJ Launcher (I've named it named 'ImageJ.sh'). The shell script
> should be inside the ImageJ directory. It does not fully replace the ImageJ
> launcher, but given its simplicity it is not so bad:
>
> #!/bin/sh
> unset CDPATH
> MYPATH="`realpath "$0"`"
> DIRECTORY="`dirname "$MYPATH"`"
> cd $DIRECTORY
> $DIRECTORY/jre/bin/java -jar $DIRECTORY/ij.jar "$*"
>
> This file should be executable (Right-click>Properties>Permissions>Allow
> executing file as program).
>
>
> I also have an ImageJ.desktop file now pointing to this shell script
> instead of the launcher, so it is possible to drag&drop files onto it to
> open them. The ImageJ.desktop file should be also executable and in the
> user's ~/.local/share/applications (hidden directory, type CTRL-H to see it
> in the 'Files' window; the tilde stands for the user's home directory).
> Replace the path to the shell script in Exec and TryExec with that in your
> system, and also set the lines with Path and Icon accordingly:
>
> [Desktop Entry]
> Version=1.0
> Name=ImageJ
> GenericName=ImageJ
> X-GNOME-FullName=Image Processing
> Comment=Scientific Image Processing and Analysis
> Type=Application
> Categories=Science;Graphics;
> Exec=/home/schmid/ImageJ/ImageJ.sh
> TryExec=/home/schmid/ImageJ/ImageJ.sh
> Path=/home/schmid/ImageJ/
> Terminal=false
> StartupNotify=true
> Icon=/home/schmid/ImageJ/images/icon.png
> StartupWMClass=ij-ImageJ
> MimeType=image/bmp;image/gif;image/tiff;image/jpeg;image/png
> ;image/x-portable-graymap;application/zip;text/x-java;text/
> english;text/plain;application/javascript;
>
> (Beware of line breaks caused by the mailer, the line starting with
> 'MimeType=' is rather long and the last line of the file)
>
>
> I'm using ImageJ 1.51p; System Java is OpeJDK Java 1.8.0_131 [64-bit]
> Ubuntu 16.04TLS Linux 4.4.0-81-generic
>
>
> Michael
> ________________________________________________________________
>
> On 30/06/2017 11:03, Volker Baecker wrote:
>
>> Hello Silas,
>> yes this has been discussed here and in the FIJI forum before. The cause
>> is in the binary launcher and the linux kernel update. You can use the
>> --system switch to make it work, i.e. from the command line run
>>
>> ImageJ --system for ImageJ and
>> ImageJ-linux64 --system for FIJI
>>
>> Best regards,
>> Volker
>>
>> Silas Kraus:
>>
>>> Good morning/evening depending on time zone.
>>>
>>> Ever since about a week ago, I am not able to start ImageJ on Linux.
>>> Whenever I try to start it from console, the Java splash screen appears
>>> for ~ 1 second, then disappears and the console reports a segmentation
>>> fault without any further information.
>>>
>>> I have the suspicion that the error might have occured since 2017-06-22
>>> when I upgraded the package "libservlet3.1-java". Does ImageJ make use
>>> of this library? Does anyone else have this problem?
>>>
>>> My system is Kubuntu 16.10 64bit, so a Debian-family system. On my home
>>> computer with Kubuntu 14.04, the same error happens. On Windows
>>> everything works fine.
>>>
>>> Any hint or help is very much appreciated.
>>> Silas
>>>
>>> --
>>> ImageJ mailing list:
http://imagej.nih.gov/ij/list.html>>>
>>
>>
>>
>> --
>> ImageJ mailing list:
http://imagej.nih.gov/ij/list.html>>
>>
> --
> ImageJ mailing list:
http://imagej.nih.gov/ij/list.html>
Locked
signature.asc (465 bytes) 