Bug 48473 code and comments preference section is blank
I will atach a screen shot to demonstrate
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/NameConventionConfigurationBlock.java
protected void updateControls() {
		unpackEntries();
	}	
		
	/* (non-Javadoc)
	 * @see org.eclipse.jdt.internal.ui.preferences.OptionsConfigurationBlock#getFullBuildDialogStrings(boolean)
	 */
	protected String[] getFullBuildDialogStrings(boolean workspaceSettings) {
		return null; 
	}
	
	private void createEntry(List list, String prefixKey, String suffixKey, int kind) {
		NameConventionEntry entry= new NameConventionEntry();
		entry.kind= kind;
		entry.suffixkey= suffixKey;
		entry.prefixkey= prefixKey;	
		entry.suffix= (String) fWorkingValues.get(suffixKey);
		entry.prefix= (String) fWorkingValues.get(prefixKey);
		list.add(entry);
	}
	
	private void unpackEntries() {
		ArrayList list= new ArrayList(4);
		createEntry(list, PREF_FIELD_PREFIXES, PREF_FIELD_SUFFIXES,  FIELD);
		createEntry(list, PREF_STATIC_FIELD_PREFIXES, PREF_STATIC_FIELD_SUFFIXES, STATIC);
		createEntry(list, PREF_ARGUMENT_PREFIXES, PREF_ARGUMENT_SUFFIXES, ARGUMENT);
		createEntry(list, PREF_LOCAL_PREFIXES, PREF_LOCAL_SUFFIXES, LOCAL);
		fNameConventionList.setElements(list);
	}