Bug 39244 modifiersChanged() hook not called in NewTypeWizardPage [code manipulation]
The modifiersChanged() hook in NewTypeWizardPage is not being called when a modifier radio-button is selected (public/default/private/protected), it is only being called if a check box is selected (abstract/final/static). I suspect a missing "else if" clause in typePageDialogFieldChanged() in NewTypeWizardPage is the culprit. As such am unable to extend NewTypeWizardPage and validate modifier settings (working on custom "class" wizard extension).
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/wizards/NewTypeWizardPage.java
ICompilationUnit parentCU= enclosingType.getCompilationUnit();
				imports= new ImportsStructure(parentCU, prefOrder, threshold, true);
	
				
				IType[] topLevelTypes= parentCU.getTypes();
				for (int i= 0; i < topLevelTypes.length; i++) {
					imports.addImport(topLevelTypes[i].getFullyQualifiedName('.'));
				}
				
				lineDelimiter= StubUtility.getLineDelimiterUsed(enclosingType);
				StringBuffer content= new StringBuffer();
				String comment= getTypeComment(parentCU);
				if (comment != null) {
					content.append(comment);
					content.append(lineDelimiter);
				}
				content.append(constructTypeStub(new ImportsManager(imports), lineDelimiter));
				IJavaElement[] elems= enclosingType.getChildren();
				IJavaElement sibling= elems.length > 0 ? elems[0] : null;
				
				createdType= enclosingType.createType(content.toString(), sibling, false, new SubProgressMonitor(monitor, 1));
			
				indent= StubUtility.getIndentUsed(enclosingType) + 1;
			}
			
			
			imports.create(false, new SubProgressMonitor(monitor, 1));
	
			ICompilationUnit cu= createdType.getCompilationUnit();