Solution:Error adding derby jars to project
I recently trying to add the derby plugin into the eclipse. When I try to add derby nature (PS: right-click on the java project -> "Apache Derby" -> "Add Apache Derby nature" ),I get the pop up says : Error adding Derby jars to the project: org.eclipse.ui.internal.WorkbenchWindow cannot be cast to org.eclipse.jface.window.ApplicationWindow error pop up Does this picture look familiar? Error adding Derby jars to the project What I was Using is when facing this problem : jdk1.7.0_03 Eclipse IDE for Java EE Developers (Win32) version Juno (build from 2012/06/14) derby-core-plugin 10.8.2 and -ui-plugin 1.1.3 (as there is no eclipse plugin for the latest version 10.9.1.0) I also google about this problem before but i can't find any solution. After I try many time ,I finally found a way to solve it! A bad method,but take a look! Solution: The solution is d ownload another version of Eclipse IDE for Java EE Developers like Europa! Y...