Could not open the editor: Illegal hex characters in escape (%) pattern...

I have another problem for migrating from Eclipse/Tomcat to Oracle Enterprise Pack for Eclipse/WebLogic. I got a message for a file "header.jsp":
"Could not open the editor: URLDecoder: Illegal hex in escape (%) pattern - For Input String: " =".
The error is for :
<img id="EFLogo" src="<%=EFLib.Pub.Logo %>" /> Where "EFLib.Pub.Logo is a public static variable.
The project works in Eclipse/Tomcat. It is also work for WebLogic. The problem is I cannot open and edit the file "header.jsp" and some other files with similar scriplets. What is wrong?
Please help.
Jerry
Edited by: 883301 on Sep 5, 2011 6:45 AM

Hi Jerry,
Looks like you've hit a bug in the code for the Web Page Editor (WPE) in the JSF Tools project of WTP. The design view of the WPE fails with an IllegalArgumentException in a call to the URLDecoder. I've filed a bug at Eclipse. See...
http://forums.oracle.com/forums/thread.jspa?forumID=578&threadID=2278517
https://bugs.eclipse.org/bugs/show_bug.cgi?id=356841
To work around this until the issue is fixed, you could open this file with the "JSP Editor" - just use the "Open With" context menu option.
Carlin
Edited by: crogers on Sep 6, 2011 11:44 AM

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