http://imagej.273.s1.nabble.com/Problems-to-install-ImageJ-plugins-on-MacOS-tp5002368p5002369.html
plugin "RGB measure". As far as I can realize, it does the same as the
"plugins"-folder and is accessible from the IJ-Plugins menu. Hopefully
> Dear Sir/Madam,
> my name is Teresa and I'm new in the imageJ business.
> I need the plugin "RGB measure". So I downloaded it (like they said in
> the instructions) and put it in the imageJ folder under the folder
> "analyze". But everytime I try to "compile an run", it says 'java.lang.
> not found' or likewise 'class.lang not found'.
> I really don't know what I do wrong and I searched in the web for a
> solution but couldn'd find one.
> I think it has something to do with me using a macbook, I found on the
> homepage the sub 'Compiles and runs a plugin. Runs a plugin if the name
> of the selected file ends in ".class". Requires that ImageJ be running
> on a Java Virtual Machine that includes the javac compiler, which is
> contained in the tools.jar archive. Tools.jar is included with the
> Windows and Linux versions of ImageJ bundled with Java, and it is
> pre-installed on Mac OSX. '
> I could't find the tools.jar but I downloaded a Javac Compiler (BlueJ),
> but this didn't help.
>
> Maybe one of you can help me, because I don't know who else I can ask...
> Please answer simple, I'm really not a pro in ImageJ :)
> Yours sincerly
> Teresa
>
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