Bug 23447 Java super-class name does not carry on to dialogue box [code manipulation]
From WSAD Customer: When creating a new Java Class, when an incomplete super-classname is entered in the dialogue box and then the Browse button is clicked, nothing that appears in the Choose a type field. Ideally, it should have the incomplete name typed in the previous super-class field. How to recreate : In the Java perspective, - File -> New ->Class - In the resulting dialogue box, type "JPan" in the 'Superclass' field. Now click on Browse. - Ideally, the dialogue box that just opened up should already have JPan written in it and hence the list of selectable classes would be shortened.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/wizards/NewTypeWizardPage.java
boolean enclosing= isEnclosingTypeSelected();
		fPackageDialogField.setEnabled(fCanModifyPackage && !enclosing);
		fEnclosingTypeDialogField.setEnabled(fCanModifyEnclosingType && enclosing);
	}	
	/**
	 * Hook method that gets called when the enclosing type name has changed. The method 
	 * validates the enclosing type and returns the status of the validation. It also updates the 
	 * enclosing type model.
	 * <p>
	 * Subclasses may extend this method to perform their own validation.
	 * </p>
	 * 
	 * @return the status of the validation
	 */
	protected IStatus enclosingTypeChanged() {
		StatusInfo status= new StatusInfo();
		fCurrEnclosingType= null;
		
		IPackageFragmentRoot root= getPackageFragmentRoot();
		
		fEnclosingTypeDialogField.enableButton(root != null);
		if (root == null) {
			status.setError(""); 
			return status;
		}
		
		String enclName= getEnclosingTypeText();
		if (enclName.length() == 0) {
			status.setError(NewWizardMessages.getString("NewTypeWizardPage.error.EnclosingTypeEnterName")); 
			return status;