Bug 31999 Error when opening editor on class file not hosted in a Java project
I20030214 - create Simple project - create a file A.class - open it observe: you get an error saying that Simple doesn't exist.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/ClassFileEditor.java
private Composite createCompositeSeparator(Composite parent) {
				Composite composite = new Composite(parent, SWT.NONE);
				composite.setBackground(fSeparatorColor);
				return composite;
			}
			
			private StyledText createCodeView(Composite parent) {
				int styles= SWT.MULTI | SWT.FULL_SELECTION;
				StyledText styledText= new StyledText(parent, styles);
				styledText.setBackground(fBackgroundColor);
				styledText.setForeground(fForegroundColor);
				styledText.setEditable(false);
				return styledText;
			}
			
			private Label createLabel(Composite parent, String text) {
				Label label = new Label(parent, SWT.NONE);
				if (text != null)
					label.setText(text);
				label.setBackground(fBackgroundColor);
				label.setForeground(fForegroundColor);
				return label;
			}
		
			private Label createTitleLabel(Composite parent, String text) {
				Label label = new Label(parent, SWT.NONE);
				if (text != null)
					label.setText(text);
				label.setBackground(fBackgroundColor);
				label.setForeground(fForegroundColor);