As Mircea mentions that ice-extras.js contians the prototype.js as well as Scriptaculous js.

I did the following tasks to test D&D:
1- I removed the prototype code from the ice-extras.js. Tested the D&D, and it worked but it requires the demo link to be clicked twice. As describe by Mircea above.

2- I applied the http://dev.rubyonrails.org/ticket/9416 patch to the prototype code in our ice-extras.js. Tested the D&D, and it worked but it requires the demo link to be clicked twice. As describe by Mircea above.

I looked the trunk/ icefaces.jar and noticed that the ice-extras.js generated dynamically by the build file. The build file concatenates prototype.js, scriptaculous.js and all component.js files and generates ice-extras.js. The prototype or scriptaculous library was never added separately to the icefaces jars. Which means no duplication.

I noticed that in the trunk first half of the prototype.js file goes inside the icefaces-d2d.js and rest of the half goes inside the ice-extras.js. However the compat is using one of the generated ice-extras.js from trunk which keeps second half of the protoypes.js only and missing first half. May be that is why we are force to add prototype.js separately.

List of actions completed:

1- Created trunk like folder structure to compat and moved the following folders "prototype", "scriptaculous" and "extras" to it. Change the build to generate the "icefaces-compat.js". Ran the the showcase, got the same javascript error on drag and drop. I noticed event trunk prototype.js contains the same cumulativeOffset() as compat.

2- Used above steps but instead of using trunk's prototype I used latest prototype API. Ran the showcase, got other kind of component specifc javascript errors.

3- Used above steps and instead of using trunk's extras I used compat's extras code. Ran the showcase and everything works fine.
This is what we ended up:

• Newer version of prototype
  glimmer\compat\core\src\main\javascript\prototype\prototype.js

• Scriptaculous from the trunk
  glimmer\compat\core\src\main\javascript\scriptaculous*.js

• Existing extras from compat but containing components code only.
  glimmer\compat\core\src\main\javascript\extras\extras.js

• Modified build file, that merges all above files and creates "icefaces-compat.js".

Modified: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\build.javascript.xml
Modified: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\java\com\icesoft\faces\application\ExtrasSetup.java
Modified: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\java\com\icesoft\faces\context\effects\JavascriptContext.java
Adding: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\extras
Adding: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\extras\extras.js
Adding: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\prototype
Adding: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\prototype\prototype.js
Adding: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous
Adding: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\builder.js
Adding: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\controls.js
Adding: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\dragdrop.js
Adding: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\effects.js
Adding: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\scriptaculous.js
Adding: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\slider.js
Adding: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\sound.js
Deleting: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\resources\META-INF\resources\ice-extras.js
Deleting: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\resources\META-INF\resources\prototype.js
Sending content: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\controls.js
Sending content: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\java\com\icesoft\faces\application\ExtrasSetup.java
Sending content: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\builder.js
Sending content: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\build.javascript.xml
Sending content: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\sound.js
Sending content: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\java\com\icesoft\faces\context\effects\JavascriptContext.java
Sending content: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\prototype\prototype.js
Sending content: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\extras\extras.js
Sending content: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\effects.js
Sending content: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\scriptaculous.js
Sending content: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\dragdrop.js
Sending content: D:\work\development\head\svn\ossrepo\icefaces\scratchpads\glimmer\compat\core\src\main\javascript\scriptaculous\slider.js
Completed: At revision: 20270