Get exception message when trying to use Updater Plug In

I have just downloaded the Updater Plug In but get an Exception when i try to use it. has anyone else had his expereince and how do I deal with it? Thanks.

Hi Paul,

could you please explain a bit more in detail what you downloaded from where and what the exception says? From your description it’s a bit hard to guess any hint :wink:


Dear Robert:

Thank you for your reply. I have pasted a copy of the exception message and of the PlugIn below. The PlugIn that i tried to use is the Image Updater. Thank you fo ryour help and have a great weekend,


ImageJ 1.48u; Java 1.6.0_20 [64-bit]; Windows 7 6.1; 5193K of 3071MB (<1%)
java.lang.ArrayIndexOutOfBoundsException: 0
	at ij.IJ.runUserPlugIn(
	at ij.IJ.runPlugIn(
	at ij.Executer.runCommand(

5/27/2016 ImageJ Updater 1/1

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ImageJ Updater
Author: Wayne Rasband (wsr at
Installation: Download ImageJ_Updater_.class to the plugins folder, or
subfolder, restart ImageJ, and there will be a new ImageJ
Updater command in the Plugins menu, or submenu.
Description: This plugin upgrades ImageJ to the latest ij.jar at", or downgrades to earlier versions of
ImageJ. Select “daily build” from the drop down menu and it will
upgrade to the latest daily build at
ij.jar. This plugin is built
into ImageJ 1.50i and later as the Help>Update ImageJ
History: 2008/02/12: First version
2008/02/15: Adds menu for selecting version
2008/02/25: Renamed ImageJ_Updater_
2009/06/17: Works with ImageJ64 distributed with v1.42
2009/06/23: Fixed space in path bug introduced in previous
2016/03/22: Downloads updates from"
to avoid problems due to the encryption of".

You shouldn’t require this plugin (since ImageJ contains a built-in updater), but the author, @Wayne, might want to comment on this exception message.

In any case, the recommended way to get updates of all your plugins is by activating the update sites of your choice in a Fiji installation (the ImageJ distribution recommended by the ImageJ development team).

Thank you Dr. Eglinger. I will try the update in Fiji.

Paul Whitehead

The exception is probably caused by an error downloading the file at You can workaround the problem by downloading a fresh copy of ImageJ from

The ImageJ Updater plugin is built into ImageJ but you must be running version 1.50i or later to avoid problems caused by the HTTPS encryption now used by the ImageJ website.