Re: Fiji fails to start with Java-8 on win32

Posted by ctrueden on
URL: http://imagej.273.s1.nabble.com/Fiji-fails-to-start-with-Java-8-on-win32-tp5013669p5013672.html

Hi John,

I have observed for many years that with 32-bit Java on Windows, the upper
limit for heap size can be as low as ~1.3GB. So I don't think this is new
with Java 8.

As a workaround, you should be able to launch with the 64-bit VM, change
the memory setting in Edit > Options > Memory and Threads, then relaunch in
32-bit mode.

Regards,
Curtis

On Tue, Jul 21, 2015 at 10:45 AM, John Minter <[hidden email]> wrote:

> Thanks, Curtis. This is interesting. Looks like they made Java 8  more
> memory intensive... Not sure if I can fix this...
>
> Detected ImageJ2
> JRE not found in 'C:\Apps\FIJIAP~1.WIN/jre'
> JAVA_HOME contains a JRE: 'C:\Apps\Java32\jdk1.8.0_51/jre'
> Available RAM: 2047MB, using 3/4 of that: 1536MB
> java -Dpython.cachedir.skip=true -Dplugins.dir=C:\\Apps\\FIJIAP~1.WIN
> -Xmx1536m
> -Xincgc -XX:PermSize=128m -Dpython.cachedir.skip=false
> -Djava.class.path=C:\\App
> s\\FIJIAP~1.WIN/jars/imagej-launcher-3.1.6.jar
> -Dimagej.dir=C:\\Apps\\FIJIAP~1.W
> IN -Dij.dir=C:\\Apps\\FIJIAP~1.WIN -Dfiji.dir=C:\\Apps\\FIJIAP~1.WIN
> -Dfiji.defa
> ultLibPath=bin/client/jvm.dll
> -Dfiji.executable=C:\\Apps\\Fiji.app.win32\\debug.
> exe -Dij.executable=C:\\Apps\\Fiji.app.win32\\debug.exe
> -Djava.library.path=C:\\
> Apps\\FIJIAP~1.WIN/lib/win32;C:\\Apps\\FIJIAP~1.WIN/mm/win32
> -Dsun.java2d.noddra
> w=true -Dij.debug=true -Dscijava.log.level=debug
> net.imagej.launcher.ClassLaunch
> er -ijjarpath jars -ijjarpath plugins net.imagej.Main
> Using JAVA_HOME C:\Apps\Java32\jdk1.8.0_51/jre
> Opening Java library C:\Apps\Java32\jdk1.8.0_51/jre/bin/client/jvm.dll
> Java HotSpot(TM) Client VM warning: ignoring option PermSize=128m; support
> was removed in 8.0
> Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and
> will likely be removed in a future release
> Error occurred during initialization of VM Could not reserve enough space
> for 1572864KB object heap
>
> John
>
> On Tue, Jul 21, 2015 at 10:42 AM, Curtis Rueden <[hidden email]> wrote:
>
> > Hi John,
> >
> > > The version for Java 1.7.0_79 works fine. The version for Java
> > > 1.8.0_51 show the Fiji icon for a moment, then nothing. I have
> > > verified all the paths. Have others seen this? Any suggestions?
> >
> > Rename ImageJ-win32.exe to debug.exe and run again. It will show a
> console
> > with more information.
> >
> > See also:
> > http://imagej.net/Debugging#Launching_ImageJ_in_debug_mode
> >
> > Regards,
> > Curtis
> >
> >
>
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