Bug 28398 New Java Project Wizard: no source folder after using "Back"
Build 20021213 1. Start the new Java Project wizard 2. Enter "JUnix" 3. Press "Next" - see: there's a source folder 4. Press "Back" 5. Change project name to "JUnit" 6. Press "Next" ==> no source folder
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/SourceContainerWorkbookPage.java
protected void sourcePageDoubleClicked(TreeListDialogField field) {
		if (field == fFoldersList) {
			List selection= fFoldersList.getSelectedElements();
			if (canEdit(selection)) {
				editEntry();
			}
		}
	}
	
	
	protected void sourcePageCustomButtonPressed(DialogField field, int index) {
		if (field == fFoldersList) {
			if (index == IDX_ADD) {
			List elementsToAdd= new ArrayList(10);
				if (fCurrJProject.exists()) {
					CPListElement[] srcentries= openSourceContainerDialog(null);
					if (srcentries != null) {
						for (int i= 0; i < srcentries.length; i++) {
							elementsToAdd.add(srcentries[i]);
						}
					}						
				} else {
					CPListElement entry= openNewSourceContainerDialog(null);
					if (entry != null) {
						elementsToAdd.add(entry);
					}
				}
				if (!elementsToAdd.isEmpty()) {
					if (fFoldersList.getSize() == 1) {