Bug 121084 [jar packager] Next and Finish buttons are disabled if project is selected by keyboard
Next button is not enabled if keyboard is use to select file. How to reproduce : 1. in a Java project, in Package Explorer make JRE System Library the current item 2. From keyboard select alt-f,o (export wizard) 3. On select pane, press Enter 4. On second pane, (the Finish and Next buttons are disabled), select a project using arrow key and space to select projet. --> Finish and Next buttons are still disabled... Workaround : - Use mouse to select project in second pane.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarpackager/JarPackageWizardPage.java
IPath workspaceLocation= ResourcesPlugin.getWorkspace().getRoot().getLocation();
		if (workspaceLocation != null && workspaceLocation.isPrefixOf(fJarPackage.getAbsoluteJarLocation())) {
			int segments= workspaceLocation.matchingFirstSegments(fJarPackage.getAbsoluteJarLocation());
			IPath path= fJarPackage.getAbsoluteJarLocation().removeFirstSegments(segments);
			IResource resource= ResourcesPlugin.getWorkspace().getRoot().findMember(path);
			if (resource != null && resource.getType() == IResource.FILE) {
				
				if (JarPackagerUtil.contains(JarPackagerUtil.asResources(fJarPackage.getElements()), (IFile)resource)) {
					setErrorMessage(JarPackagerMessages.JarPackageWizardPage_error_cantExportJARIntoItself); 
					return false;
				}
			}
		}
		
		String currentMessage= getMessage();
		if (!(new File(fDestinationNamesCombo.getText()).isAbsolute())) {
			if (currentMessage == null)
				setMessage(JarPackagerMessages.JarPackageWizardPage_info_relativeExportDestination, IMessageProvider.INFORMATION); 
		} else {
			if (currentMessage != null)
				setMessage(null);
		}
		return ensureTargetFileIsValid(fJarPackage.getAbsoluteJarLocation().toFile());
	}
	/*
	 * Overrides method from WizardDataTransferPage
	 */
	protected boolean validateOptionsGroup() {