http://imagej.273.s1.nabble.com/Tiger-update-broke-my-ImageJ-tp3704531p3704533.html
Following your instructions to install and activate Java 5.0 fixed the problem.
> > Yesterday my OSX updated itself to 10.4.3. After the update
> > ImageJ would no longer start. I assume the software update
> > is responsible. I tried the latest ij.jar (1.35) and it also won't
> > start.
> > The crux of the crash log seems to be:
> >
> > Exception: EXC_BAD_ACCESS (0x0001)
> > Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x000003cc
>
> I updated my laptop to 10.4.3 without any problems.
>
> > if I execute the command "java -debug -jar ij.jar", ImageJ will
> > start and a window will warn me that "Plugins folder not found at
> > /Applications/ImageJ/ImageJ.app/Contents/Resources/Java/plugins"
>
> You can work around this problem by moving ij.jar into the ImageJ
> folder. You can also launch ImageJ by double clicking on ij.jar, but
> this does not allow you to allocate more memory using the -Xmx option.
>
> Here are a couple of other things you can try. Download a fresh copy of
> the ImageJ 1.34 application for Mac OS X. If that doesn't work,
> download Java 5.0 from "
http://www.apple.com/macosx/features/java/" and
> switch to it using the Java Preference utility in
> /Applications/Utilities/Java/J2SE 5.0/.
>
> -wayne
>