Problem with Image IO jar on Oracle Form

I'm using a PJC as a TextEditor on Oracle Form. The PJC uses JAI ImageIO jar that holds javax.imageio package. When I use the PJC right from Oracle Form it doesn't work whereas it works well independently. Please have a look on JInitiator Console message given below and let me know if possible how to get around this:
Drag Enter
Source: java.awt.dnd.DropTarget@1abd68
Drag Exit
Possible flavor: application/x-java-file-list; class=java.util.List
Exception occurred during event dispatching:
java.lang.NoClassDefFoundError: javax/imageio/ImageIO
at HTMLEditor.drop(HTMLEditor.java:591)
at java.awt.dnd.DropTarget.drop(Unknown Source)
at sun.awt.dnd.SunDropTargetContextPeer.processDropMessage(Unknown Source)
at sun.awt.dnd.SunDropTargetContextPeer.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
I need to tell that if I unjar my jar used for pjc I find that ok for javax.imageio package and also if I run my program other than on Oracle Form, it runs fine. I know regarding the signing issue of jar required to run pjc , so don't get concerned of it.
Thanks
Rashed

Hi...thanks for your suggestion. Which JavaPlugin do you suggest to implement? If you mean to upgrade the jre that is an installer found for various jdk versions, I have that...in that case I only need to know which version should I use. Moreover, installing that tool the jre of jdk gets upgraded...I don't know how to upgrade Jinitiator...please let me know this issue.
Rashed

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Problem with Image IO jre on Oracle Form

I'm using PJC to run my Text Editor program from Oracle Form. The Editor has an Image drag & drop option and I have to upgrade the jre with Image I/O API for this functionality. To upgrade jre the tool 'jai_imageio_1_0_01-lib-windows-i586-jre' needs to be installed. When I upgrade jre with this tool and run my program independently from Oracle Form, it runs well but when I run this right there from Oracle Form it doesn't run and exception is thrown on javax.imageio and other packages that are part of that tool even though the Oracle Developer's jdk is upgraded with this tool. Could anyone help me resolve this problem?

Hi,
This is a JDeveloper help forum, the Formsforum can be found at Forms Now you might think that Forms developers don't understand Java well enough, they do however understand teh Forms context and this is important to answr the question.
a) Which Java version does your ben require?
b) Are you using JInitiator or JavaPlugin (Jinitiator only supports Java 1.3)
c) Is your PJC signed? Note that running an app stand alone as a Java app does not require special grants. Running it within a JavaApplet - as Forms is - does execute teh bean in a security sandbox, for which reasons the jar file must be signed and the public key be available in the Forms certdb.txt file (assuming Jinitiator)
d) An exception stack trace gives more information than "Oracle Form it doesn't run and exception is thrown on javax.imageio and other packages", which is meanlingless to me and others. Teh stack trace canbe copied from teh JInitiator console
I recommend resending this question to the Forms forum
Frank

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first of all
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